Abstract

We report the observation of a broadband continuum spanning from 350 to 470 nm in the black-light region of the electromagnetic spectrum as a result of picosecond pumping a solid-core silica photonic crystal fiber at 355 nm. This was achieved despite strong absorption and a large normal dispersion of silica glass in the UV. Further investigations reveal that the continuum generation results from the interplay of intermodally phase-matched four-wave mixing and cascaded Raman scattering. We also discuss the main limitations in terms of bandwidth and power due to temporal walk-off, fiber absorption, and the photo darkening effect, and we suggest simple solutions.

© 2012 Optical Society of America

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2010

2008

2006

2005

2004

2003

Akimov, D. A.

Baggett, J. C.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Bartula, R. J.

R. J. Bartula, J. W. Walewski, and S. T. Sanders, Appl. Phys. B 84, 395 (2006).
[CrossRef]

Baumberg, J. J.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Belardi, W.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Biancalana, F.

Birks, T. A.

Chai, L.

Coyle, S.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Dai, N.

Dukel’skii, K. V.

Efimov, A.

Furusawa, K.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Genty, G.

George, A. K.

Hu, M.

Joly, N.

Joly, N. Y.

Kiefer, W.

Knight, J. C.

Kondrat’ev, Yu. N.

Kudlinski, A.

Lehtonen, M.

Li, J.-Y.

Liu, B.-W.

Ludvigsen, H.

Maillotte, H.

Maksimenka, R.

Monro, T. M.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Mussot, A.

Netti, C.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Omenetto, F. J.

Paschotta, R.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Podlipensky, A.

Popov, S. V.

Price, J. H. V.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Provino, L.

Richardson, D. J.

J. H. V. Price, T. M. Monro, K. Furusawa, W. Belardi, J. C. Baggett, S. Coyle, C. Netti, J. J. Baumberg, R. Paschotta, and D. J. Richardson, Appl. Phys. B 77, 291 (2003).
[CrossRef]

Rulkov, A. B.

Russell, P. S. J.

Russell, P. St. J.

Sanders, S. T.

R. J. Bartula, J. W. Walewski, and S. T. Sanders, Appl. Phys. B 84, 395 (2006).
[CrossRef]

Schmitt, M.

Serebryannikov, E. E.

Shevandin, V. S.

Stark, S. P.

Stone, J. M.

Sylvestre, T.

Taylor, A. J.

Taylor, J. R.

Travers, J. C.

Wadsworth, W.

Wadsworth, W. J.

Walewski, J. W.

R. J. Bartula, J. W. Walewski, and S. T. Sanders, Appl. Phys. B 84, 395 (2006).
[CrossRef]

Wang, C.

Wang, S.-J.

Zheltikov, A. M.

Supplementary Material (1)

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Figures (5)

Fig. 1.
Fig. 1.

(a) Chromatic dispersion of the fundamental mode versus wavelength. Inset: SEM image of the solid-core PCF. (b), (c) The inverse group velocities and the chromatic dispersions of the three LP 01 (red), LP 11 (green), and LP 31 (blue) modes, respectively, shown in the insets. (d) FWM frequency shift versus wavelength. (See Media 1.)

Fig. 2.
Fig. 2.

Output spectra recorded at the end of the 30 m long PCF for a variable coupled pump power from 0.5 to 4 mW. The spectral resolution is 0.5 nm. The inset shows the optical mode output of the blue continuum.

Fig. 3.
Fig. 3.

Output spectra recorded at the end of the photonic crystal fiber for shorter fiber lengths : (a)  L = 1 m , (b)  L = 4 m . The inset shows the modal distribution of FWM.

Fig. 4.
Fig. 4.

Direct comparison of spectra recorded at the output of the PCF under UV (355 nm, blue) and IR (1064 nm, red) laser pumping. Pump powers are 4 and 25 mW, respectively. (b) A zoom of the part of (a) shown in the dashed box.

Fig. 5.
Fig. 5.

Numerical simulations of cascaded Raman generation for two input pulse durations and UV continuum generation in the PCF. (a), (c) Temporal and (b),(d)  spectral outputs. Parameters are indicated in the figures and text. (e) The UV-visible continuum generation for a peak power of 3kW.

Metrics