Abstract

Supercontinuum generation in chalcogenide fibers is a promising technology for broadband spatially coherent sources in the mid-infrared, but it suffers from discouraging commercial prospects, mainly due to a lack of suitable pump lasers. Here, a promising approach is experimentally demonstrated using an amplified 1.55 μm diode laser to generate a pump continuum up to 4.4 μm in cascaded silica and fluoride fibers. We present experimental evidence and numerical simulations confirming that the spectral-temporal composition of the pump continuum is critical for continued broadening in a chalcogenide fiber. The fundamental physical question is concerned with the long-wavelength components of the pump spectrum, which may consist of either solitons or dispersive waves. In demonstrating this we present a commercially viable fiber-cascading configuration to generate a mid-infrared supercontinuum up to 7 μm in commercial chalcogenide fibers.

© 2016 Optical Society of America

1. Introduction

Supercontinuum generation (SCG) in chalcogenide glass fibers have attracted a great deal of interest due to their nonlinear properties and wide mid-infrared (MIR) transmission band across the molecular fingerprint region to above 14 µm [1–5 ]. Together with the high beam quality and intensity of a fiber-delivered beam SCG in chalcogenide fibers has opened the prospects for new powerful MIR analytical tools for broadband fundamental vibrational spectroscopy [6], optical coherence tomography [7], and hyperspectral microscopy [8,9 ]. Currently, the most mature MIR fiber SC technology is based on fluoride glasses, such as ZrF4-BaF2-LaF3-AlF3-NaF (ZBLAN), owing to their high-power capabilities and excellent transmission from the UV to about 4.5 µm [10,11 ]. Due to these unique properties commercial ZBLAN SC lasers are now emerging [12–14 ], and in this regard cascaded SCG has been one of the key enabling technologies for efficient ZBLAN supercontinuum sources, because it has enabled the use of matured technologies such as semiconductor laser diodes, silica fibers, and fiber amplifiers [12,14,15 ]. However, the use of ZBLAN fibers limits the spectrum to 4.5 µm due to strong multiphonon absorption in the host material [11].

Extending the cascading scheme to chalcogenide fibers presents an attractive alternative to direct pumping schemes. However, the dynamics and efficiency of such a double-cascading scheme is highly dependent on the material and wave-guiding properties of the fibers. In general, efficient SCG towards longer wavelengths requires pumping in the anomalous dispersion regime near the fiber zero-dispersion wavelength (ZDW), where soliton dynamics is dominating [16,17 ]. Standard step-index silica fibers exhibit anomalous dispersion from around 1.3 μm all the way to the silica multiphonon absorption edge near 2.5 μm. Consequently, pumping a step-index silica fiber with a laser diode or erbium-doped silica fiber laser at 1.55 μm, inherently results in a SC where the long-wavelength edge is composed of solitons. Such an SC has been found to be an excellent pump source for continued broadening in ZBLAN fibers through soliton self-frequency shifting (SSFS), because it extends above the ZDW of typical step-index ZBLAN fibers at around 1.6 μm [11]. Using this scheme efficient SCG in ZBLAN fibers has been demonstrated using various combinations of seed lasers and optical amplifiers [12,14,15,18 ]. However, unlike silica the dispersion of step-index ZBLAN fibers is less well known due to the more complex composition of heavy-metals, and in fact these fibers may have a second ZDW before the multiphonon absorption edge. The presence of a second ZDW completely changes the spectral-temporal dynamics of the long-wavelength part of the spectrum. As solitons shift towards the second ZDW the SSFS is halted due to an increasing transfer of energy to dispersive waves (DW) that are phase-matched to a resonant wavelength in the normal dispersion regime across the ZDW. To conserve both energy and momentum the soliton frequency must shift in the opposite½ direction of the DW, thus counteracting the SSFS – an effect referred to as spectral recoil [17,19–21 ]. The average power of such a long-wavelength spectrum consisting of DWs can be equivalent or even higher than one consisting exclusively of solitons [21], which raises the fundamental question whether both spectra could be used for continued broadening in a chalcogenide fiber. To date, this has remained an open question since there have been no experimental results with coupling dispersive waves, or cascading a ZBLAN SC into a chalcogenide fiber. A ZBLAN-chalcogenide cascading scheme was studied numerically by Kubat et al. using a scalar approach to demonstrate the possibility of generating a spectrum from 0.9 to 9.0 μm by pumping a 5 μm diameter suspended-core As2Se3 fiber with a ZBLAN SC consisting solely of solitons [22]. However, these simulations should be considered a mere proof-of-concept since they omitted higher-order modes and the coupling of power to both polarization states, which strongly limits the spectral broadening [23]. Gattass et al. experimentally demonstrated SCG from 1.9 to 4.8 μm by launching a 2.4-2.5 μm silica continuum into two meters of As2S3 step-index fiber with 10 μm core diameter [24]. In their experiment the spectral broadening was limited by a strong absorption peak at 4 μm and the reduced efficiency of normal dispersion pumping in a large-core chalcogenide fiber.

Naturally, the choice of chalcogenide fiber affects the efficiency and dynamics of the SC cascade. The most commonly reported chalcogenide glasses used in optical fibers are As2S3 [24–29 ] and As2Se3 [4,30–32 ], where As2Se3 has both a stronger nonlinearity and longer MIR transmission edge, albeit at the cost of a longer material ZDW of ~7 μm compared to ~5 μm in As2S3 [1–3 ]. Consequently, efforts have been made to reduce the ZDW of chalcogenide fibers by utilizing microstructured design, such as suspended-core fibers [31,32 ]. Such single-glass microstructured fibers allow for further engineering of the waveguide dispersion, while maintaining relatively simple fabrication, making them an attractive choice for commercial SCG fibers [1,31 ].

In this letter we demonstrate the importance of the ZBLAN SC spectral-temporal composition in cascaded silica, ZBLAN, and chalcogenide fibers for extended MIR SC spectral coverage. We present experimental evidence, supported by numerical simulations, of fundamentally different spectral-temporal SCG dynamics in two similar ZBLAN fibers and its impact on spectral broadening in a chalcogenide fiber.

2. Experimental setup

The experimental setup for cascaded SCG is shown in Fig. 1 . The seed was based on a 1.55 μm semiconductor laser diode delivering 3 ns pulses at 40 kHz repetition rate, which generated around 400 mW SC from 1.5 to 2.2 μm in standard silica single-mode fiber. The continuum was then amplified to 1.25 W in a 10 μm core diameter thulium (Tm) doped silica fiber pumped at 790 nm, resulting in depletion of the wavelengths below 1.8 μm and extension of the long-wavelength edge to 2.7 μm. The addition of a Tm-doped fiber amplifier compared to an erbium-doped fiber amplifier was made to extend the long-wavelength edge in the ZBLAN fiber [14,15 ]. The amplified spectrum was then coupled to one of the two tested ZBLAN fibers and then further into a chalcogenide fiber by Black-diamond aspheric lens telescopes. Coupling to the small chalcogenide fiber core was confirmed with the aid of a PbSe camera, and the resulting spectrum was measured using a Fourier transform infrared (FTIR) spectrometer. Measurements with comparable output power rather than pump power were chosen to account for changes in coupling to the suspended-core fiber. Measurements of the intermediate silica and fluoride spectra were performed using a scanning grating spectrometer.

 figure: Fig. 1

Fig. 1 Experimental setup for cascaded SCG. A 1.55 μm laser diode delivering 3 ns pulses at 40 kHz repetition rate was coupled into a few meters of standard silica single-mode fiber (SMF) to generate a continuum from 1.5 to 2.2 μm (blue curve). This SC was coupled to around 3 m Tm-doped fiber pumped by a 0.79 μm laser to amplify and extend the continuum from 1.8 to 2.8 μm (purple curve). Aspheric lenses L1-L5 was used to couple the spectrum in and out of the ZBLAN/chalcogenide fibers. The long-wavelength part of the full ZBLAN spectrum (red curve) was filtered out with a 3.5 μm long pass filter (LP35) and coupled into the chalcogenide fiber. The output was collimated and analysed with an FTIR and PbSe camera. A 4.5 μm long pass filter (LP45) was inserted when measuring the power and spectrum generated at longer wavelengths.

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The chalcogenide fiber used in the experiments was a commercial As38Se62 suspended-core fiber from Perfos with a 4.5 μm core diameter, ZDW at 3.5 μm, and low loss in the 3.2-8.0 μm window [30]. The two ZBLAN fibers (A and B) were acquired from Fiberlabs Inc. ZBLAN A had a core diameter of 6.4 ± 0.1 μm, ZBLAN B had a core diameter of 6.9 ± 0.7 μm, and both fibers had a reported NA of 0.265. The dispersion of the fibers was measured using white-light interferometry from ~1.1-4.6 μm revealing two ZDWs in both fibers. The first ZDW was around 1.51 μm in both fibers, however, due to the smaller core ZBLAN A had a shorter second ZDW at 3.56 μm, and due to the larger core variation of ZBLAN B the second ZDW was found to vary from 4.37 to 4.43 μm. This difference in ZDW between the two fibers is essential to the experiment because it means that in ZBLAN A the long-wavelength edge of the spectrum consist of DWs generated beyond the second ZDW in the normal dispersion regime, whereas in ZBLAN B it consist entirely of solitons, as illustrated in Fig. 2(a) and (b) , respectively.

 figure: Fig. 2

Fig. 2 (a) Illustration of DW generation across the second ZDW. The experimental output spectrum of ZBLAN A is plotted in linear scale on the wavelength/intensity plane displaying the signature of initial DW generation across the ZDW (purple curve) and the subsequent continuum formation at higher power (red curve). (b) In ZBLAN B the long-wavelength edge is continuously shifted through SSFS up until the multiphonon absorption edge due to a longer ZDW.

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3. Spectral-temporal analysis and numerical simulations

The fundamentally different spectral-temporal dynamics was observed experimentally from the evolution of the long-pass filtered ZBLAN spectrum with increased pump power, as seen in Fig. 3(a) and 3(b) . The figure shows how the DW peak in ZBLAN A remains centered around 4.1 μm while growing with increasing power, whereas in ZBLAN B the edge of the spectrum shifts continuously due to SSFS. Red-shifted DWs and spectral recoiling has been thoroughly investigated in fibers with negative dispersion slope going from the anomalous dispersion regime towards the second ZDW, which is the case for both ZBLAN A and B. Energy transfer to the DWs increase with propagation length, i.e., as the soliton approaches the ZDW and the overlap between the DW and the soliton becomes stronger. However, while the energy of the solitons remain localized in time the DWs are spread in a tail travelling ahead of the solitons [19,20 ]. To our knowledge, such a pump source consisting of DWs has never been used in a cascading scheme before. While it may seem intuitive that DWs should be inferior to solitons as a pump source, in this case the second ZDW of ZBLAN B coincides with the absorption edge of the fiber, which may reduce the efficiency. In our experiments we investigated this by coupling the 3.5 μm long-pass filtered part of the ZBLAN continua into ~167.5 mm suspended-core fiber. This way either exclusively DWs or solitons were launched into the anomalous dispersion regime of the suspended-core fiber.

 figure: Fig. 3

Fig. 3 (a) Formation of a distinct DW peak at around 4.1 μm in ZBLAN A with increased power, eventually forming a continuum. (b) Red-shifting of the spectrum above 3.5 μm in ZBLAN B with increased pump power, displaying a continuous shift due to SSFS. The spectral dip around 4.25 μm in both cases is due to CO2 absorption in the air.

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In order to confirm the correctness of the experimental results a series of SC simulations were performed in an attempt to reproduce the experimental observations. Pulse propagation was simulated in MATLAB using the generalized nonlinear Schrödinger equation rewritten in the interaction picture formulation and integrated using a fourth order Runge-Kutta method [22,33,34 ]. The precision of the integration was improved by using an adaptive step size routine. The model assumes single-mode and single polarization only, and noise was modelled using the one-photon-per-mode scheme. For convenience we limited the pulse duration to 20 ps, and to match the experimental results in the silica fiber we used a diode laser peak power of 10 kW and a length of 10 m. The dispersion was modelled using a simplified dispersion relation from the specifications of Corning SMF28. The loss was determined empirically by incorporating appropriate loss edges modelled as Gaussian high- and low-pass filters and a Gaussian OH-absorption at 1.3 μm to give a good match to the experimental results. The Tm-doped silica fiber model included additional absorption and emission bands for the Tm transitions modelled as broad Gaussian loss and gain peaks centred at 1.6 μm and 1.9 μm, respectively. Before further propagating the Tm-amplified spectrum the time-window was wrapped around, so the short-wavelength edge was shifted to the end of the window to allow for additional temporal broadening in the ZBLAN fiber without changing simulation parameters. Such a shift had no impact on the simulations, since the time axis is relative. A fiber length of 4.25 m with a gain of 4.13 dB/m was used to match experimental data. Because the spectral-temporal dynamics in the ZBLAN fibers are essential to the experiments, they were modelled much more accurately using the measured dispersion. The loss and numerical aperture (NA) were provided by the manufacturer (NA = 0.265 assumed to be constant). The wavelength dependent effective area and nonlinear parameter were calculated using COMSOL Multiphysics, incorporating the given fiber parameters, and coefficients for the Kerr effect and delayed Raman response found in the literature [17,34,35 ]. The spectrum was multiplied with a factor of 0.9 before further propagation to reduce broadening in the ZBLAN fibers to better match experimental spectra. The results of the silica and ZBLAN simulations are shown in Fig. 4 .

 figure: Fig. 4

Fig. 4 Simulation of SCG in silica and ZBLAN fibres. (a) Spectrum at the output of the silica and ZBLAN fibres. The spectral-temporal composition is displayed in corresponding spectrograms for (b) standard silica fibre, (c) Tm-doped silica fibre, (d) ZBLAN A, and (e) ZBLAN B, respectively. The spectrograms are normalised to the maximum value and scaled from 0 dB to −80 dB

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Figure 4 shows the normalized output spectra from the different silica and ZBLAN fibers, while the remaining windows (b-e) show the corresponding intensity-normalized spectral-temporal composition at the output of the fibers. The expected dynamics of red-shifted DW generation (d) and continuous SSFS (e) is evident from the spectrograms. It is also evident that a small portion of the short-wavelength spectrum has wrapped around in the time-window, however, this part of the spectrum is relatively weak and was filtered out before propagation in the suspended-core fiber. A length of 15 m of ZBLAN fiber was needed in order to push the DW peak of ZBLAN A close to the experimentally observed peak at 4.15 μm. This discrepancy may be due to measurement uncertainty of the third-order dispersion and underestimation of the material and confinement losses at the long-wavelength edge.

For the chalcogenide fiber the full dispersion was obtained using COMSOL based on the refractive index of AMTIR glass [33]. The nonlinear operator was again calculated using COMSOL, incorporating the modelled Kerr coefficient from Romanova et al. [36] and the delayed Raman response measured by Ung and Skorobogatiy [37]. Estimation of fiber loss was performed as in Kubat et al. [33]. Before propagation in the chalcogenide fiber the ZBLAN spectra were long-pass filtered and multiplied by a dampening factor of 0.21 to match experimental observations. This corresponds to a coupling loss of −6.8 dB which is reasonable for this fiber material and geometry. The ZBLAN A spectrum was then equalized with the ZBLAN B spectrum in terms of summed average power to make the two comparable.

4. Results and discussion

As a result, coupling solitons from ZBLAN B provided almost 1.5 μm increased spectral broadening (10 dB bandwidth) compared to the DWs from ZBLAN A, as seen in Fig. 5(a) and 5(b) for comparable output power levels of 4.46 mW and 4.48 mW, respectively. The spectra were corrected by blackbody calibration and the data set was limited on the short-wavelength side to 2.8 μm due to the detection limit of the FTIR.

 figure: Fig. 5

Fig. 5 Experimental results with cascaded SCG efficiency for the ZBLAN A (a) and B (b) configurations with comparable output power levels of 4.48 mW and 4.46 mW, respectively. The solid and dashed lines represent the measured dispersion of the ZBLAN and chalcogenide fibers, respectively.

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Further insight into the spectral-temporal dynamics was gained by simulating both pump cases. Figure 6(a) shows a comparison between the experimental and simulated spectra for the ZBLAN A pump case. It can be seen from the input (b) and output (c) spectrograms that solitons, seen as temporally narrow horizontal lines between −25 ps and 10 ps, slowly develop from the DW radiation. However, a large part of the spectrum exhibit very little spectral broadening due to the low-amplitude nature of the DWs. Our simulations show that a much longer fiber is needed for the spectrum to develop, which makes the chalcogenide fiber losses a limiting factor. In the ZBLAN B pump case, spectral broadening in the chalcogenide fiber is assumed to be largely dominated by soliton fission and subsequent SSFS due to the large increase in the nonlinear Kerr coefficient from n2=2.2×1020 m2W1 in ZBLAN [11,34 ] to n2=5.72×1018 m2W1 in As2Se3 [36] and the greatly reduced effective modal area. This causes a large increase in the order of the injected solitons, which consequently breaks-up within a very short length of fiber into a large amount of fundamental solitons that may continue to red-shift and collide [38]. This was also corroborated by the simulations, which shows a large number of red-shifting solitons, as seen in Fig. 7 .

 figure: Fig. 6

Fig. 6 (a) Comparison between the experimental and simulated pump/output spectra for the ZBLAN A pump case. (b,c) Corresponding normalized simulation spectrograms for the filtered ZBLAN A pump, and output after 170 mm propagation in the suspended-core fiber, respectively.

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 figure: Fig. 7

Fig. 7 Comparison between the experimental and simulated pump/output spectra for the ZBLAN B pump case. A clear peak at around 5.5 μm is seen in both cases. (b,c) Corresponding spectrograms for the filtered ZBLAN B pump spectrum, and output after 165 mm propagation in the suspended-core fiber, respectively.

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In both cases the absence of blue-shifted DWs in our experiments is explained as a combination of reduced sensitivity of the FTIR spectrometer used in our measurements and a large OH loss peak at 2.9 μm due to contamination and diffusion of water vapor from the atmosphere. The output power and long-wavelength edge of the spectrum was limited by the typical large losses associated with coupling to a small-core chalcogenide fiber, including the 22% Fresnel reflections, and by optically induced damage to the fiber facet, which occurred above 53 mW average pump power. Damage was observed at fairly low pump powers due to the thermal isolation of the core and the very fragile suspending struts. Still this type of fiber was chosen over more robust designs due to the ZDW at 3.5 μm, which was ideal for this experiment. The bandwidth limit presented here thus represents the limitation of the chalcogenide fiber, rather than the cascading scheme itself. In fact, a step-index chalcogenide fiber with a ZDW of 3.2 μm was recently demonstrated [5], which should allow for further power scaling. Even so, with the ZBLAN B pump and using a maximum pump power of 51.4 mW before the in-coupling lens a continuum up to 7.0 μm with a total output power of 6.5 mW and 1.5 mW above 4.5 μm was obtained after collimation, showing good qualitative agreement with the simulated spectrum as seen in Fig. 8 . These results are comparable to the results of Møller et al., who obtained 15.6 mW total power and 4.7 mW above 5.0 μm in the same type of fiber through direct pumping with 320 fs pulses at 4.4 μm from a parametric amplifier [30].

 figure: Fig. 8

Fig. 8 Broadest experimental spectrum (solid line) from soliton cascaded SCG with a total output power of 6.5 mW and 1.5 mW above 4.5 μm, and the corresponding simulated spectrum (dashed line). The inset shows the near-field image of the output beam superimposed on a scanning electron microscope image of the suspended-core region from Perfos.

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5. Conclusion

In conclusion, we have demonstrated experimentally that careful control over fiber dispersion to obtain solitons at the long-wavelength edge of the pump spectrum is crucial for efficient cascaded SCG. Supported by numerical simulations our results reveal that an SC consisting of DWs is not suitable for extending the spectrum further into the MIR in short chalcogenide fibers, even though the power spectral density of the long-wavelength edge may be higher than in a corresponding soliton SC. To achieve similar results pumping with dispersive waves would require longer lengths of fiber and higher average power, which means that the efficiency of the DW generation in a DW pump fiber must be significantly higher than the efficiency of SSFS in the soliton pump fiber to give any merit to such a scheme. In demonstrating this we have presented a commercially viable scheme for chalcogenide fiber-based MIR SC sources using a double-cascading configuration with a cheap 1.55 µm laser generating an SC in standard silica fiber, amplifying and coupling this into a fluoride fiber with carefully designed dispersion, and then finally coupling this into a chalcogenide fiber with a suitable low ZDW to generate a continuum up to 7 μm with 6.5 mW total output power and 1.5 mW above 4.5 μm.

Acknowledgments

The authors acknowledge financial support from Innovation Fund Denmark, project Light & Food (132-2012-3). This work was also supported by the European Commission through the Framework Seven (FP7) project MINERVA: MId- to NEaR infrared spectroscopy for improVed medical diAgnostics (317803; www.minerva-project.eu). A special thanks to FOSS Analytical A/S for supplying the compact FTIR spectrometer that made the measurements possible.

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31. J. Troles, L. Brilland, P. Toupin, Q. Coulombier, S. D. Le, D. M. Nguyen, M. Thual, and T. Chartier, “Chalcogenide suspended-core fibers: manufacturing and non-linear properties at 1.55 µm,” in IEEE ICTON (IEEE, 2011), paper We.B6.2.

32. G. Renversez, M. Duhant, W. Renard, Q. Coulombier, and J. Trol, “Nonlinear effects above 2 µm in chalcogenide suspended core microstructured optical fibers: modeling and experiments,” in IEEE PHO, (IEEE, 2011), pp. 61–62.

33. I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014). [CrossRef]  

34. C. Agger, C. Petersen, S. Dupont, H. Steffensen, J. K. Lyngso, C. Thomsen, S. Keiding, and O. Bang, “ZBLAN supercontinuum generation - detailed comparison between measurement and simulation,” J. Opt. Soc. Am. B 29, 635–644 (2012). [CrossRef]  

35. X. Zhu and N. Peyghambarian, “High-power ZBLAN glass fiber lasers: review and prospect,” Adv. Optoelectron. 2010, 501956 (2010). [CrossRef]  

36. E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014). [CrossRef]  

37. B. Ung and M. Skorobogatiy, “Chalcogenide microporous fibers for linear and nonlinear applications in the mid-infrared,” Opt. Express 18(8), 8647–8659 (2010). [CrossRef]   [PubMed]  

38. C. Agger, S. T. Sørensen, C. L. Thomsen, S. R. Keiding, and O. Bang, “Nonlinear soliton matching between optical fibers,” Opt. Lett. 36(13), 2596–2598 (2011). [CrossRef]   [PubMed]  

References

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  32. G. Renversez, M. Duhant, W. Renard, Q. Coulombier, and J. Trol, “Nonlinear effects above 2 µm in chalcogenide suspended core microstructured optical fibers: modeling and experiments,” in IEEE PHO, (IEEE, 2011), pp. 61–62.
  33. I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
    [Crossref]
  34. C. Agger, C. Petersen, S. Dupont, H. Steffensen, J. K. Lyngso, C. Thomsen, S. Keiding, and O. Bang, “ZBLAN supercontinuum generation - detailed comparison between measurement and simulation,” J. Opt. Soc. Am. B 29, 635–644 (2012).
    [Crossref]
  35. X. Zhu and N. Peyghambarian, “High-power ZBLAN glass fiber lasers: review and prospect,” Adv. Optoelectron. 2010, 501956 (2010).
    [Crossref]
  36. E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
    [Crossref]
  37. B. Ung and M. Skorobogatiy, “Chalcogenide microporous fibers for linear and nonlinear applications in the mid-infrared,” Opt. Express 18(8), 8647–8659 (2010).
    [Crossref] [PubMed]
  38. C. Agger, S. T. Sørensen, C. L. Thomsen, S. R. Keiding, and O. Bang, “Nonlinear soliton matching between optical fibers,” Opt. Lett. 36(13), 2596–2598 (2011).
    [Crossref] [PubMed]

2015 (4)

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Y. Yu, B. Zhang, X. Gai, C. Zhai, S. Qi, W. Guo, Z. Yang, R. Wang, D. Y. Choi, S. Madden, and B. Luther-Davies, “1.8-10 μm mid-infrared supercontinuum generated in a step-index chalcogenide fiber using low peak pump power,” Opt. Lett. 40(6), 1081–1084 (2015).
[Crossref] [PubMed]

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

U. Møller, Y. Yu, I. Kubat, C. R. Petersen, X. Gai, L. Brilland, D. Méchin, C. Caillaud, J. Troles, B. Luther-Davies, and O. Bang, “Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber,” Opt. Express 23(3), 3282–3291 (2015).
[Crossref] [PubMed]

2014 (9)

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

F. Théberge, N. Thiré, J.-F. Daigle, P. Mathieu, B. E. Schmidt, Y. Messaddeq, R. Vallée, and F. Légaré, “Multioctave infrared supercontinuum generation in large-core As₂S₃ fibers,” Opt. Lett. 39(22), 6474–6477 (2014).
[Crossref] [PubMed]

S. Shabahang, G. Tao, M. P. Marquez, H. Hu, T. R. Ensley, P. J. Delfyett, and A. F. Abouraddy, “Nonlinear characterization of robust multimaterial chalcogenide nanotapers for infrared supercontinuum generation,” J. Opt. Soc. Am. B 31(3), 450 (2014).
[Crossref]

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

J. Swiderski, “High-power mid-infrared supercontinuum sources: Current status and future perspectives,” Prog. Quantum Electron. 38(5), 189–235 (2014).
[Crossref]

G. Steinmeyer and J. S. Skibina, “Supercontinua: Entering the mid-infrared,” Nat. Photonics 8(11), 814–815 (2014).
[Crossref]

R. Su, M. Kirillin, E. W. Chang, E. Sergeeva, S. H. Yun, and L. Mattsson, “Perspectives of mid-infrared optical coherence tomography for inspection and micrometrology of industrial ceramics,” Opt. Express 22(13), 15804–15819 (2014).
[Crossref] [PubMed]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

2013 (5)

2012 (6)

A. Marandi, C. W. Rudy, V. G. Plotnichenko, E. M. Dianov, K. L. Vodopyanov, and R. L. Byer, “Mid-infrared supercontinuum generation in tapered chalcogenide fiber for producing octave-spanning frequency comb around 3 μm,” Opt. Express 20(22), 24218–24225 (2012).
[Crossref] [PubMed]

C. Agger, C. Petersen, S. Dupont, H. Steffensen, J. K. Lyngso, C. Thomsen, S. Keiding, and O. Bang, “ZBLAN supercontinuum generation - detailed comparison between measurement and simulation,” J. Opt. Soc. Am. B 29, 635–644 (2012).
[Crossref]

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

M. N. Islam, “All-fiber designs extend supercontinuum sources into the mid-IR region,” Laser Focus World 48, 56–60 (2012).

P. M. Moselund, C. Petersen, S. Dupont, C. Agger, O. Bang, and S. R. Keiding, “Supercontinuum: broad as a lamp, bright as a laser, now in the mid-infrared,” Proc. SPIE 8381, 83811A (2012).
[Crossref]

S. Dupont, C. Petersen, J. Thøgersen, C. Agger, O. Bang, and S. R. Keiding, “IR microscopy utilizing intense supercontinuum light source,” Opt. Express 20(5), 4887–4892 (2012).
[Crossref] [PubMed]

2011 (3)

2010 (2)

B. Ung and M. Skorobogatiy, “Chalcogenide microporous fibers for linear and nonlinear applications in the mid-infrared,” Opt. Express 18(8), 8647–8659 (2010).
[Crossref] [PubMed]

X. Zhu and N. Peyghambarian, “High-power ZBLAN glass fiber lasers: review and prospect,” Adv. Optoelectron. 2010, 501956 (2010).
[Crossref]

2009 (1)

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

2008 (1)

2007 (1)

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

2006 (1)

J. M. Dudley, G. Genty, and S. Coen, “Supercontinuum generation in photonic crystal fiber,” Rev. Mod. Phys. 78(4), 1135–1184 (2006).
[Crossref]

2004 (1)

F. Biancalana, D. V. Skryabin, and A. V. Yulin, “Theory of the soliton self-frequency shift compensation by the resonant radiationin photonic crystal fibers,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 70(1), 016615 (2004).
[Crossref] [PubMed]

2003 (1)

D. V. Skryabin, F. Luan, J. C. Knight, and P. S. J. Russell, “Soliton self-frequency shift cancellation in photonic crystal fibers,” Science 301(5640), 1705–1708 (2003).
[Crossref] [PubMed]

2002 (1)

Abdel-Moneim, N.

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Abouraddy, A. F.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

S. Shabahang, G. Tao, M. P. Marquez, H. Hu, T. R. Ensley, P. J. Delfyett, and A. F. Abouraddy, “Nonlinear characterization of robust multimaterial chalcogenide nanotapers for infrared supercontinuum generation,” J. Opt. Soc. Am. B 31(3), 450 (2014).
[Crossref]

Aggarwal, I. D.

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Agger, C.

Agger, C. S.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

I. Kubat, C. S. Agger, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 4.5 μm in uniform and tapered ZBLAN step-index fibers by direct pumping at 1064 or 1550 nm,” J. Opt. Soc. Am. B 30(10), 2743–2757 (2013).
[Crossref]

Alexander, V. V.

Andersen, P. E.

Babic, F.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

Badding, J. V.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Ballato, J.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Bang, O.

U. Møller, Y. Yu, I. Kubat, C. R. Petersen, X. Gai, L. Brilland, D. Méchin, C. Caillaud, J. Troles, B. Luther-Davies, and O. Bang, “Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber,” Opt. Express 23(3), 3282–3291 (2015).
[Crossref] [PubMed]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

I. Kubat, C. S. Agger, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 4.5 μm in uniform and tapered ZBLAN step-index fibers by direct pumping at 1064 or 1550 nm,” J. Opt. Soc. Am. B 30(10), 2743–2757 (2013).
[Crossref]

P. M. Moselund, C. Petersen, S. Dupont, C. Agger, O. Bang, and S. R. Keiding, “Supercontinuum: broad as a lamp, bright as a laser, now in the mid-infrared,” Proc. SPIE 8381, 83811A (2012).
[Crossref]

S. Dupont, C. Petersen, J. Thøgersen, C. Agger, O. Bang, and S. R. Keiding, “IR microscopy utilizing intense supercontinuum light source,” Opt. Express 20(5), 4887–4892 (2012).
[Crossref] [PubMed]

C. Agger, C. Petersen, S. Dupont, H. Steffensen, J. K. Lyngso, C. Thomsen, S. Keiding, and O. Bang, “ZBLAN supercontinuum generation - detailed comparison between measurement and simulation,” J. Opt. Soc. Am. B 29, 635–644 (2012).
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C. Agger, S. T. Sørensen, C. L. Thomsen, S. R. Keiding, and O. Bang, “Nonlinear soliton matching between optical fibers,” Opt. Lett. 36(13), 2596–2598 (2011).
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I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

Benson, T. M.

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
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Brandon Shaw, L.

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Brilland, L.

Broeng, J.

Byer, R. L.

Caillaud, C.

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Chau, A.

Cheng, T.

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V. S. Shiryaev and M. F. Churbanov, “Trends and prospects for development of chalcogenide fibers for mid-infrared transmission,” J. Non-Cryst. Solids 377, 225–230 (2013).
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Daigle, J.-F.

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G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Delfyett, P. J.

Deng, D.

Dianov, E. M.

Duan, Z.

Dudley, J. M.

J. M. Dudley, G. Genty, and S. Coen, “Supercontinuum generation in photonic crystal fiber,” Rev. Mod. Phys. 78(4), 1135–1184 (2006).
[Crossref]

Dupont, S.

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

S. Dupont, C. Petersen, J. Thøgersen, C. Agger, O. Bang, and S. R. Keiding, “IR microscopy utilizing intense supercontinuum light source,” Opt. Express 20(5), 4887–4892 (2012).
[Crossref] [PubMed]

P. M. Moselund, C. Petersen, S. Dupont, C. Agger, O. Bang, and S. R. Keiding, “Supercontinuum: broad as a lamp, bright as a laser, now in the mid-infrared,” Proc. SPIE 8381, 83811A (2012).
[Crossref]

C. Agger, C. Petersen, S. Dupont, H. Steffensen, J. K. Lyngso, C. Thomsen, S. Keiding, and O. Bang, “ZBLAN supercontinuum generation - detailed comparison between measurement and simulation,” J. Opt. Soc. Am. B 29, 635–644 (2012).
[Crossref]

Ebendorff-Heidepriem, H.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Eggleton, B. J.

B. J. Eggleton, B. Luther-Davies, and K. Richardson, “Chalcogenide photonics,” Nat. Photonics 5, 141–148 (2011).

El Amraoui, M.

Ensley, T. R.

Falk, P.

Farries, M.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Finger, M. A.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

Fink, Y.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Freeman, M. J.

O. P. Kulkarni, V. V. Alexander, M. Kumar, M. J. Freeman, M. N. Islam, F. L. Terry, M. Neelakandan, and A. Chan, “Supercontinuum generation from ~1.9 to 4.5 μm in ZBLAN fiber with high average power generation beyond 3.8 μ m using a thulium-doped fiber amplifier,” J. Opt. Soc. Am. B 28(10), 2486–2498 (2011).
[Crossref]

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Frosz, M. H.

Fuhrberg, P.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Furniss, D.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

Gai, X.

Gao, W.

Gattass, R. R.

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Genty, G.

J. M. Dudley, G. Genty, and S. Coen, “Supercontinuum generation in photonic crystal fiber,” Rev. Mod. Phys. 78(4), 1135–1184 (2006).
[Crossref]

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M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

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E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Guo, W.

Hammiche, A.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
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Harvey, J. D.

Hu, H.

Islam, M. N.

M. N. Islam, “All-fiber designs extend supercontinuum sources into the mid-IR region,” Laser Focus World 48, 56–60 (2012).

O. P. Kulkarni, V. V. Alexander, M. Kumar, M. J. Freeman, M. N. Islam, F. L. Terry, M. Neelakandan, and A. Chan, “Supercontinuum generation from ~1.9 to 4.5 μm in ZBLAN fiber with high average power generation beyond 3.8 μ m using a thulium-doped fiber amplifier,” J. Opt. Soc. Am. B 28(10), 2486–2498 (2011).
[Crossref]

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Jiang, X.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

Joly, N. Y.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

Kawashima, H.

Keiding, S.

Keiding, S. R.

Kirillin, M.

Knight, J. C.

Konyukhov, A. I.

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Kubat, I.

U. Møller, Y. Yu, I. Kubat, C. R. Petersen, X. Gai, L. Brilland, D. Méchin, C. Caillaud, J. Troles, B. Luther-Davies, and O. Bang, “Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber,” Opt. Express 23(3), 3282–3291 (2015).
[Crossref] [PubMed]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

I. Kubat, C. S. Agger, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 4.5 μm in uniform and tapered ZBLAN step-index fibers by direct pumping at 1064 or 1550 nm,” J. Opt. Soc. Am. B 30(10), 2743–2757 (2013).
[Crossref]

Kulkarni, O. P.

Kumar, M.

Kuzyutkina, Y. S.

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Kyrgiou, M.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Lamrini, S.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Légaré, F.

Leonhardt, R.

Liao, M.

Luan, F.

D. V. Skryabin, F. Luan, J. C. Knight, and P. S. J. Russell, “Soliton self-frequency shift cancellation in photonic crystal fibers,” Science 301(5640), 1705–1708 (2003).
[Crossref] [PubMed]

Luther-Davies, B.

Lyngso, J. K.

Madden, S.

Marandi, A.

Marquez, M. P.

Martin, F. L.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Martin-Hirsch, P. L.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Mathieu, P.

Mattsson, L.

Mauricio, J.

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Maze, G.

Méchin, D.

Messaddeq, Y.

Michalska, M.

Møller, U.

U. Møller, Y. Yu, I. Kubat, C. R. Petersen, X. Gai, L. Brilland, D. Méchin, C. Caillaud, J. Troles, B. Luther-Davies, and O. Bang, “Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber,” Opt. Express 23(3), 3282–3291 (2015).
[Crossref] [PubMed]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

Møller, U. V.

Moselund, P. M.

I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

I. Kubat, C. S. Agger, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 4.5 μm in uniform and tapered ZBLAN step-index fibers by direct pumping at 1064 or 1550 nm,” J. Opt. Soc. Am. B 30(10), 2743–2757 (2013).
[Crossref]

P. M. Moselund, C. Petersen, S. Dupont, C. Agger, O. Bang, and S. R. Keiding, “Supercontinuum: broad as a lamp, bright as a laser, now in the mid-infrared,” Proc. SPIE 8381, 83811A (2012).
[Crossref]

Mouskeftaras, A.

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Napier, B.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Neelakandan, M.

Nguyen, V. Q.

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Ohishi, Y.

Paraskevaidis, E.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
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Petersen, C.

Petersen, C. R.

Peyghambarian, N.

X. Zhu and N. Peyghambarian, “High-power ZBLAN glass fiber lasers: review and prospect,” Adv. Optoelectron. 2010, 501956 (2010).
[Crossref]

Plotnichenko, V. G.

Pollock, H. M.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Pureza, P. C.

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Qi, S.

Ramsay, J.

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

Richardson, K.

B. J. Eggleton, B. Luther-Davies, and K. Richardson, “Chalcogenide photonics,” Nat. Photonics 5, 141–148 (2011).

Romanova, E. A.

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Rudy, C. W.

Russell, P. S. J.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

D. V. Skryabin, F. Luan, J. C. Knight, and P. S. J. Russell, “Soliton self-frequency shift cancellation in photonic crystal fibers,” Science 301(5640), 1705–1708 (2003).
[Crossref] [PubMed]

S. Coen, A. Chau, R. Leonhardt, J. D. Harvey, J. C. Knight, W. J. Wadsworth, and P. S. J. Russell, “Supercontinuum generation by stimulated Raman scattering and parametric four-wave mixing in photonic crystal fibers,” J. Opt. Soc. Am. B 19(4), 753–764 (2002).
[Crossref]

Sanghera, J. S.

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Schmidt, B. E.

Scholle, K.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Seddon, A.

I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

Seddon, A. B.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Sergeeva, E.

Shabahang, S.

Shiryaev, V. S.

V. S. Shiryaev and M. F. Churbanov, “Trends and prospects for development of chalcogenide fibers for mid-infrared transmission,” J. Non-Cryst. Solids 377, 225–230 (2013).
[Crossref]

Singh, M.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Skibina, J. S.

G. Steinmeyer and J. S. Skibina, “Supercontinua: Entering the mid-infrared,” Nat. Photonics 8(11), 814–815 (2014).
[Crossref]

Skorobogatiy, M.

Skryabin, D. V.

F. Biancalana, D. V. Skryabin, and A. V. Yulin, “Theory of the soliton self-frequency shift compensation by the resonant radiationin photonic crystal fibers,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 70(1), 016615 (2004).
[Crossref] [PubMed]

D. V. Skryabin, F. Luan, J. C. Knight, and P. S. J. Russell, “Soliton self-frequency shift cancellation in photonic crystal fibers,” Science 301(5640), 1705–1708 (2003).
[Crossref] [PubMed]

Sørensen, S. T.

Steffensen, H.

Steinmeyer, G.

G. Steinmeyer and J. S. Skibina, “Supercontinua: Entering the mid-infrared,” Nat. Photonics 8(11), 814–815 (2014).
[Crossref]

Stolyarov, A. M.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Stringfellow, H. F.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Su, R.

Sujecki, S.

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Suzuki, T.

Swiderski, J.

Tang, Z.

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Tao, G.

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

S. Shabahang, G. Tao, M. P. Marquez, H. Hu, T. R. Ensley, P. J. Delfyett, and A. F. Abouraddy, “Nonlinear characterization of robust multimaterial chalcogenide nanotapers for infrared supercontinuum generation,” J. Opt. Soc. Am. B 31(3), 450 (2014).
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Terry, F. L.

O. P. Kulkarni, V. V. Alexander, M. Kumar, M. J. Freeman, M. N. Islam, F. L. Terry, M. Neelakandan, and A. Chan, “Supercontinuum generation from ~1.9 to 4.5 μm in ZBLAN fiber with high average power generation beyond 3.8 μ m using a thulium-doped fiber amplifier,” J. Opt. Soc. Am. B 28(10), 2486–2498 (2011).
[Crossref]

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Théberge, F.

Thiré, N.

Thøgersen, J.

Thomsen, C.

Thomsen, C. L.

Thrane, L.

Travers, J. C.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

Troles, J.

Ung, B.

Vallée, R.

Vodopyanov, K. L.

Wadsworth, W. J.

Walsh, M. J.

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

Wang, R.

Ward, J.

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Wong, G. K. L.

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

Xia, C.

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Xu, Z.

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Yang, Z.

Yu, Y.

Yulin, A. V.

F. Biancalana, D. V. Skryabin, and A. V. Yulin, “Theory of the soliton self-frequency shift compensation by the resonant radiationin photonic crystal fibers,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 70(1), 016615 (2004).
[Crossref] [PubMed]

Yun, S. H.

Zakel, A.

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

Zhai, C.

Zhang, B.

Zhou, B.

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

Zhu, X.

X. Zhu and N. Peyghambarian, “High-power ZBLAN glass fiber lasers: review and prospect,” Adv. Optoelectron. 2010, 501956 (2010).
[Crossref]

Adv. Opt. Photonics (1)

G. Tao, H. Ebendorff-Heidepriem, A. M. Stolyarov, S. Danto, J. V. Badding, Y. Fink, J. Ballato, and A. F. Abouraddy, “Infrared fibers,” Adv. Opt. Photonics 7, 379–458 (2015).

Adv. Optoelectron. (1)

X. Zhu and N. Peyghambarian, “High-power ZBLAN glass fiber lasers: review and prospect,” Adv. Optoelectron. 2010, 501956 (2010).
[Crossref]

Cancer Lett. (1)

M. J. Walsh, M. J. German, M. Singh, H. M. Pollock, A. Hammiche, M. Kyrgiou, H. F. Stringfellow, E. Paraskevaidis, P. L. Martin-Hirsch, and F. L. Martin, “IR microspectroscopy: potential applications in cervical cancer screening,” Cancer Lett. 246(1-2), 1–11 (2007).
[Crossref] [PubMed]

IEEE J. Sel. Top. Quantum Electron. (1)

C. Xia, Z. Xu, M. N. Islam, F. L. Terry, M. J. Freeman, A. Zakel, and J. Mauricio, “10.5 W time-averaged power mid-IR supercontinuum generation extending beyond 4 µm with direct pulse pattern modulation,” IEEE J. Sel. Top. Quantum Electron. 15(2), 422–434 (2009).
[Crossref]

J. Non-Cryst. Solids (1)

V. S. Shiryaev and M. F. Churbanov, “Trends and prospects for development of chalcogenide fibers for mid-infrared transmission,” J. Non-Cryst. Solids 377, 225–230 (2013).
[Crossref]

J. Opt. Soc. Am. B (5)

Laser Focus World (1)

M. N. Islam, “All-fiber designs extend supercontinuum sources into the mid-IR region,” Laser Focus World 48, 56–60 (2012).

Nat. Photonics (4)

B. J. Eggleton, B. Luther-Davies, and K. Richardson, “Chalcogenide photonics,” Nat. Photonics 5, 141–148 (2011).

C. R. Petersen, U. Møller, I. Kubat, B. Zhou, S. Dupont, J. Ramsay, T. Benson, S. Sujecki, N. Abdel-Moneim, Z. Tang, D. Furniss, A. Seddon, and O. Bang, “Mid-infrared supercontinuum covering the 1.4–13.3 μm molecular fingerprint region using ultra-high NA chalcogenide step-index fibre,” Nat. Photonics 8(11), 830–834 (2014).
[Crossref]

X. Jiang, N. Y. Joly, M. A. Finger, F. Babic, G. K. L. Wong, J. C. Travers, and P. S. J. Russell, “Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre,” Nat. Photonics 9(2), 133–139 (2015).
[Crossref]

G. Steinmeyer and J. S. Skibina, “Supercontinua: Entering the mid-infrared,” Nat. Photonics 8(11), 814–815 (2014).
[Crossref]

Opt. Eng. (1)

E. A. Romanova, Y. S. Kuzyutkina, A. I. Konyukhov, N. Abdel-Moneim, A. B. Seddon, T. M. Benson, S. Guizard, and A. Mouskeftaras, “Nonlinear optical response and heating of chalcogenide glasses upon irradiation by the ultrashort laser pulses,” Opt. Eng. 53(7), 071812 (2014).
[Crossref]

Opt. Express (9)

B. Ung and M. Skorobogatiy, “Chalcogenide microporous fibers for linear and nonlinear applications in the mid-infrared,” Opt. Express 18(8), 8647–8659 (2010).
[Crossref] [PubMed]

U. Møller, Y. Yu, I. Kubat, C. R. Petersen, X. Gai, L. Brilland, D. Méchin, C. Caillaud, J. Troles, B. Luther-Davies, and O. Bang, “Multi-milliwatt mid-infrared supercontinuum generation in a suspended core chalcogenide fiber,” Opt. Express 23(3), 3282–3291 (2015).
[Crossref] [PubMed]

W. Gao, M. El Amraoui, M. Liao, H. Kawashima, Z. Duan, D. Deng, T. Cheng, T. Suzuki, Y. Messaddeq, and Y. Ohishi, “Mid-infrared supercontinuum generation in a suspended-core As2S3 chalcogenide microstructured optical fiber,” Opt. Express 21(8), 9573–9583 (2013).
[Crossref] [PubMed]

A. Marandi, C. W. Rudy, V. G. Plotnichenko, E. M. Dianov, K. L. Vodopyanov, and R. L. Byer, “Mid-infrared supercontinuum generation in tapered chalcogenide fiber for producing octave-spanning frequency comb around 3 μm,” Opt. Express 20(22), 24218–24225 (2012).
[Crossref] [PubMed]

R. Su, M. Kirillin, E. W. Chang, E. Sergeeva, S. H. Yun, and L. Mattsson, “Perspectives of mid-infrared optical coherence tomography for inspection and micrometrology of industrial ceramics,” Opt. Express 22(13), 15804–15819 (2014).
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S. Dupont, C. Petersen, J. Thøgersen, C. Agger, O. Bang, and S. R. Keiding, “IR microscopy utilizing intense supercontinuum light source,” Opt. Express 20(5), 4887–4892 (2012).
[Crossref] [PubMed]

J. Swiderski, M. Michalska, and G. Maze, “Mid-IR supercontinuum generation in a ZBLAN fiber pumped by a gain-switched mode-locked Tm-doped fiber laser and amplifier system,” Opt. Express 21(7), 7851–7857 (2013).
[Crossref] [PubMed]

I. Kubat, C. R. Petersen, U. V. Møller, A. Seddon, T. Benson, L. Brilland, D. Méchin, P. M. Moselund, and O. Bang, “Thulium pumped mid-infrared 0.9-9μm supercontinuum generation in concatenated fluoride and chalcogenide glass fibers,” Opt. Express 22(4), 3959–3967 (2014).
[Crossref] [PubMed]

I. Kubat, C. S. Agger, U. Møller, A. B. Seddon, Z. Tang, S. Sujecki, T. M. Benson, D. Furniss, S. Lamrini, K. Scholle, P. Fuhrberg, B. Napier, M. Farries, J. Ward, P. M. Moselund, and O. Bang, “Mid-infrared supercontinuum generation to 12.5μm in large NA chalcogenide step-index fibres pumped at 4.5μm,” Opt. Express 22(16), 4887–4892 (2014).
[Crossref]

Opt. Fiber Technol. (1)

R. R. Gattass, L. Brandon Shaw, V. Q. Nguyen, P. C. Pureza, I. D. Aggarwal, and J. S. Sanghera, “All-fiber chalcogenide-based mid-infrared supercontinuum source,” Opt. Fiber Technol. 18(5), 345–348 (2012).
[Crossref]

Opt. Lett. (5)

Phys. Rev. E Stat. Nonlin. Soft Matter Phys. (1)

F. Biancalana, D. V. Skryabin, and A. V. Yulin, “Theory of the soliton self-frequency shift compensation by the resonant radiationin photonic crystal fibers,” Phys. Rev. E Stat. Nonlin. Soft Matter Phys. 70(1), 016615 (2004).
[Crossref] [PubMed]

Proc. SPIE (1)

P. M. Moselund, C. Petersen, S. Dupont, C. Agger, O. Bang, and S. R. Keiding, “Supercontinuum: broad as a lamp, bright as a laser, now in the mid-infrared,” Proc. SPIE 8381, 83811A (2012).
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Prog. Quantum Electron. (1)

J. Swiderski, “High-power mid-infrared supercontinuum sources: Current status and future perspectives,” Prog. Quantum Electron. 38(5), 189–235 (2014).
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Rev. Mod. Phys. (1)

J. M. Dudley, G. Genty, and S. Coen, “Supercontinuum generation in photonic crystal fiber,” Rev. Mod. Phys. 78(4), 1135–1184 (2006).
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Science (1)

D. V. Skryabin, F. Luan, J. C. Knight, and P. S. J. Russell, “Soliton self-frequency shift cancellation in photonic crystal fibers,” Science 301(5640), 1705–1708 (2003).
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Other (2)

J. Troles, L. Brilland, P. Toupin, Q. Coulombier, S. D. Le, D. M. Nguyen, M. Thual, and T. Chartier, “Chalcogenide suspended-core fibers: manufacturing and non-linear properties at 1.55 µm,” in IEEE ICTON (IEEE, 2011), paper We.B6.2.

G. Renversez, M. Duhant, W. Renard, Q. Coulombier, and J. Trol, “Nonlinear effects above 2 µm in chalcogenide suspended core microstructured optical fibers: modeling and experiments,” in IEEE PHO, (IEEE, 2011), pp. 61–62.

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Figures (8)

Fig. 1
Fig. 1 Experimental setup for cascaded SCG. A 1.55 μm laser diode delivering 3 ns pulses at 40 kHz repetition rate was coupled into a few meters of standard silica single-mode fiber (SMF) to generate a continuum from 1.5 to 2.2 μm (blue curve). This SC was coupled to around 3 m Tm-doped fiber pumped by a 0.79 μm laser to amplify and extend the continuum from 1.8 to 2.8 μm (purple curve). Aspheric lenses L1-L5 was used to couple the spectrum in and out of the ZBLAN/chalcogenide fibers. The long-wavelength part of the full ZBLAN spectrum (red curve) was filtered out with a 3.5 μm long pass filter (LP35) and coupled into the chalcogenide fiber. The output was collimated and analysed with an FTIR and PbSe camera. A 4.5 μm long pass filter (LP45) was inserted when measuring the power and spectrum generated at longer wavelengths.
Fig. 2
Fig. 2 (a) Illustration of DW generation across the second ZDW. The experimental output spectrum of ZBLAN A is plotted in linear scale on the wavelength/intensity plane displaying the signature of initial DW generation across the ZDW (purple curve) and the subsequent continuum formation at higher power (red curve). (b) In ZBLAN B the long-wavelength edge is continuously shifted through SSFS up until the multiphonon absorption edge due to a longer ZDW.
Fig. 3
Fig. 3 (a) Formation of a distinct DW peak at around 4.1 μm in ZBLAN A with increased power, eventually forming a continuum. (b) Red-shifting of the spectrum above 3.5 μm in ZBLAN B with increased pump power, displaying a continuous shift due to SSFS. The spectral dip around 4.25 μm in both cases is due to CO2 absorption in the air.
Fig. 4
Fig. 4 Simulation of SCG in silica and ZBLAN fibres. (a) Spectrum at the output of the silica and ZBLAN fibres. The spectral-temporal composition is displayed in corresponding spectrograms for (b) standard silica fibre, (c) Tm-doped silica fibre, (d) ZBLAN A, and (e) ZBLAN B, respectively. The spectrograms are normalised to the maximum value and scaled from 0 dB to −80 dB
Fig. 5
Fig. 5 Experimental results with cascaded SCG efficiency for the ZBLAN A (a) and B (b) configurations with comparable output power levels of 4.48 mW and 4.46 mW, respectively. The solid and dashed lines represent the measured dispersion of the ZBLAN and chalcogenide fibers, respectively.
Fig. 6
Fig. 6 (a) Comparison between the experimental and simulated pump/output spectra for the ZBLAN A pump case. (b,c) Corresponding normalized simulation spectrograms for the filtered ZBLAN A pump, and output after 170 mm propagation in the suspended-core fiber, respectively.
Fig. 7
Fig. 7 Comparison between the experimental and simulated pump/output spectra for the ZBLAN B pump case. A clear peak at around 5.5 μm is seen in both cases. (b,c) Corresponding spectrograms for the filtered ZBLAN B pump spectrum, and output after 165 mm propagation in the suspended-core fiber, respectively.
Fig. 8
Fig. 8 Broadest experimental spectrum (solid line) from soliton cascaded SCG with a total output power of 6.5 mW and 1.5 mW above 4.5 μm, and the corresponding simulated spectrum (dashed line). The inset shows the near-field image of the output beam superimposed on a scanning electron microscope image of the suspended-core region from Perfos.

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