Abstract

We propose a rapidly frequency-swept optical beat source for continuous wave (CW) THz generation using a wavelength swept laser and a fixed distributed feedback (DFB) laser. The range of the sweeping bandwidth is about 17.3 nm (2.16 THz), 1541.42–1558.72 nm. The achieved side mode suppression ratio for both wavelengths within the full sweeping range is more than 45 dB. We observe CW THz signals for tunable optical beat sources using a fiber coupled CW THz measurement system to confirm the feasibility of using our frequency swept optical beat source as a CW THz radiation source. The THz output signal falls to the thermal noise level of the low-temperature grown (LTG) InGaAs photomixer beyond 1.0 THz. The rapidly frequency-swept optical beat source will be useful for generating high-speed tunable CW THz radiation.

© 2011 OSA

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    [CrossRef]
  4. T. Hattori, K. Ohta, R. Rungsawang, and K. Tukamoto, “Phase-sensitive high-speed THz imaging,” J. Phys. D Appl. Phys. 37(5), 770–773 (2004).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]

2010

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

B. C. Lee, E.-J. Jung, C.-S. Kim, and M. Y. Jeon, “Dynamic and static strain fiber Bragg grating sensor interrogation with a 1.3 mm Fourier domain mode-locked wavelength-swept laser,” Meas. Sci. Technol. 21(9), 094008 (2010).
[CrossRef]

M. Y. Jeon, N. Kim, J. Shin, J. S. Jeong, S.-P. Han, C. W. Lee, Y. A. Leem, D.-S. Yee, H. S. Chun, and K. H. Park, “Widely tunable dual-wavelength Er3+-doped fiber laser for tunable continuous-wave terahertz radiation,” Opt. Express 18(12), 12291–12297 (2010).
[CrossRef] [PubMed]

Y. Kim and D.-S. Yee, “High-speed terahertz time-domain spectroscopy based on electronically controlled optical sampling,” Opt. Lett. 35(22), 3715–3717 (2010).
[CrossRef] [PubMed]

2009

2008

M. Y. Jeon, J. Zhang, Q. Wang, and Z. Chen, “High-speed and wide bandwidth Fourier domain mode-locked wavelength swept laser with multiple SOAs,” Opt. Express 16(4), 2547–2554 (2008).
[CrossRef] [PubMed]

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

S. Osborne, S. O’Brien, E. P. O’Reilly, P. G. Huggard, and B. N. Ellison, “Generation of CW 0.5 THz radiation by photomixing the output of a two-colour 1.49 μm Fabry-Perot diode laser,” Electron. Lett. 44(4), 296–298 (2008).
[CrossRef]

2007

S.-W. Lee, C. S. Kim, and B.-M. Kim, “External line-cavity wavelength-swept source at 850 nm for optical coherence tomography,” IEEE Photon. Technol. Lett. 19(3), 176–178 (2007).
[CrossRef]

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[CrossRef]

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

2006

2004

T. Hattori, K. Ohta, R. Rungsawang, and K. Tukamoto, “Phase-sensitive high-speed THz imaging,” J. Phys. D Appl. Phys. 37(5), 770–773 (2004).
[CrossRef]

2003

2002

B. Ferguson and X.-C. Zhang, “Materials for terahertz science and technology,” Nat. Mater. 1(1), 26–33 (2002).
[CrossRef] [PubMed]

1999

R. Hui, B. Zhu, K. Demarest, C. Allen, and J. Hong, “Generation of ultrahigh-speed tunable-rate optical pulses using strongly gain-coupled dual-wavelength DFB laser diodes,” IEEE Photon. Technol. Lett. 11(5), 518–520 (1999).
[CrossRef]

1998

P. Gu, M. Tani, M. Hyodo, K. Sakai, and T. Hidaka, “Generation of cw-Terahertz Radiation Using a Two-Longitudinal-Mode Laser Diode,” Jpn. J. Appl. Phys. 37(Part 2, No. 8B), L976–L978 (1998).
[CrossRef]

Allen, C.

R. Hui, B. Zhu, K. Demarest, C. Allen, and J. Hong, “Generation of ultrahigh-speed tunable-rate optical pulses using strongly gain-coupled dual-wavelength DFB laser diodes,” IEEE Photon. Technol. Lett. 11(5), 518–520 (1999).
[CrossRef]

Bach, H.-G.

Baron, P.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Bartels, A.

Bouma, B.

Chen, Z.

Chun, H. S.

de Boer, J.

Dekorsy, T.

Demarest, K.

R. Hui, B. Zhu, K. Demarest, C. Allen, and J. Hong, “Generation of ultrahigh-speed tunable-rate optical pulses using strongly gain-coupled dual-wavelength DFB laser diodes,” IEEE Photon. Technol. Lett. 11(5), 518–520 (1999).
[CrossRef]

Deninger, A.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Dreyhaupt, A.

Ellison, B. N.

S. Osborne, S. O’Brien, E. P. O’Reilly, P. G. Huggard, and B. N. Ellison, “Generation of CW 0.5 THz radiation by photomixing the output of a two-colour 1.49 μm Fabry-Perot diode laser,” Electron. Lett. 44(4), 296–298 (2008).
[CrossRef]

Erbert, G.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Ferguson, B.

B. Ferguson and X.-C. Zhang, “Materials for terahertz science and technology,” Nat. Mater. 1(1), 26–33 (2002).
[CrossRef] [PubMed]

Fricke, J.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Fujimoto, J. G.

Fukunaga, K.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Gruninger, M.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Gu, P.

P. Gu, M. Tani, M. Hyodo, K. Sakai, and T. Hidaka, “Generation of cw-Terahertz Radiation Using a Two-Longitudinal-Mode Laser Diode,” Jpn. J. Appl. Phys. 37(Part 2, No. 8B), L976–L978 (1998).
[CrossRef]

Gusten, R.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Han, S.-P.

Hattori, T.

T. Hattori, K. Ohta, R. Rungsawang, and K. Tukamoto, “Phase-sensitive high-speed THz imaging,” J. Phys. D Appl. Phys. 37(5), 770–773 (2004).
[CrossRef]

Helm, M.

Hemberger, J.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Hidaka, T.

P. Gu, M. Tani, M. Hyodo, K. Sakai, and T. Hidaka, “Generation of cw-Terahertz Radiation Using a Two-Longitudinal-Mode Laser Diode,” Jpn. J. Appl. Phys. 37(Part 2, No. 8B), L976–L978 (1998).
[CrossRef]

Hong, J.

R. Hui, B. Zhu, K. Demarest, C. Allen, and J. Hong, “Generation of ultrahigh-speed tunable-rate optical pulses using strongly gain-coupled dual-wavelength DFB laser diodes,” IEEE Photon. Technol. Lett. 11(5), 518–520 (1999).
[CrossRef]

Hosako, I.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Huber, R.

Huggard, P. G.

S. Osborne, S. O’Brien, E. P. O’Reilly, P. G. Huggard, and B. N. Ellison, “Generation of CW 0.5 THz radiation by photomixing the output of a two-colour 1.49 μm Fabry-Perot diode laser,” Electron. Lett. 44(4), 296–298 (2008).
[CrossRef]

Hui, R.

R. Hui, B. Zhu, K. Demarest, C. Allen, and J. Hong, “Generation of ultrahigh-speed tunable-rate optical pulses using strongly gain-coupled dual-wavelength DFB laser diodes,” IEEE Photon. Technol. Lett. 11(5), 518–520 (1999).
[CrossRef]

Hyodo, M.

P. Gu, M. Tani, M. Hyodo, K. Sakai, and T. Hidaka, “Generation of cw-Terahertz Radiation Using a Two-Longitudinal-Mode Laser Diode,” Jpn. J. Appl. Phys. 37(Part 2, No. 8B), L976–L978 (1998).
[CrossRef]

Iftimia, N.

Jang, Y.

Janke, C.

Jeon, M. Y.

Jeong, J. S.

Jung, E.-J.

B. C. Lee, E.-J. Jung, C.-S. Kim, and M. Y. Jeon, “Dynamic and static strain fiber Bragg grating sensor interrogation with a 1.3 mm Fourier domain mode-locked wavelength-swept laser,” Meas. Sci. Technol. 21(9), 094008 (2010).
[CrossRef]

Kasai, Y.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Kim, B.-M.

S.-W. Lee, C. S. Kim, and B.-M. Kim, “External line-cavity wavelength-swept source at 850 nm for optical coherence tomography,” IEEE Photon. Technol. Lett. 19(3), 176–178 (2007).
[CrossRef]

Kim, C. S.

S.-W. Lee, C. S. Kim, and B.-M. Kim, “External line-cavity wavelength-swept source at 850 nm for optical coherence tomography,” IEEE Photon. Technol. Lett. 19(3), 176–178 (2007).
[CrossRef]

Kim, C.-S.

B. C. Lee, E.-J. Jung, C.-S. Kim, and M. Y. Jeon, “Dynamic and static strain fiber Bragg grating sensor interrogation with a 1.3 mm Fourier domain mode-locked wavelength-swept laser,” Meas. Sci. Technol. 21(9), 094008 (2010).
[CrossRef]

Kim, N.

Kim, Y.

Klehr, A.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Knauer, A.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Koch, M.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Kunkel, R.

Kunzel, H.

Lee, B. C.

B. C. Lee, E.-J. Jung, C.-S. Kim, and M. Y. Jeon, “Dynamic and static strain fiber Bragg grating sensor interrogation with a 1.3 mm Fourier domain mode-locked wavelength-swept laser,” Meas. Sci. Technol. 21(9), 094008 (2010).
[CrossRef]

Lee, C. W.

Lee, S.-W.

S.-W. Lee, C. S. Kim, and B.-M. Kim, “External line-cavity wavelength-swept source at 850 nm for optical coherence tomography,” IEEE Photon. Technol. Lett. 19(3), 176–178 (2007).
[CrossRef]

Leem, Y. A.

Mayorga, I. C.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Mendrok, J.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Mikulics, M.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

O’Brien, S.

S. Osborne, S. O’Brien, E. P. O’Reilly, P. G. Huggard, and B. N. Ellison, “Generation of CW 0.5 THz radiation by photomixing the output of a two-colour 1.49 μm Fabry-Perot diode laser,” Electron. Lett. 44(4), 296–298 (2008).
[CrossRef]

O’Reilly, E. P.

S. Osborne, S. O’Brien, E. P. O’Reilly, P. G. Huggard, and B. N. Ellison, “Generation of CW 0.5 THz radiation by photomixing the output of a two-colour 1.49 μm Fabry-Perot diode laser,” Electron. Lett. 44(4), 296–298 (2008).
[CrossRef]

Ochiai, S.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Ohta, K.

T. Hattori, K. Ohta, R. Rungsawang, and K. Tukamoto, “Phase-sensitive high-speed THz imaging,” J. Phys. D Appl. Phys. 37(5), 770–773 (2004).
[CrossRef]

Osborne, S.

S. Osborne, S. O’Brien, E. P. O’Reilly, P. G. Huggard, and B. N. Ellison, “Generation of CW 0.5 THz radiation by photomixing the output of a two-colour 1.49 μm Fabry-Perot diode laser,” Electron. Lett. 44(4), 296–298 (2008).
[CrossRef]

Park, K. H.

Patrashin, M.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Roehle, H.

Roggenbuck, A.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Rungsawang, R.

T. Hattori, K. Ohta, R. Rungsawang, and K. Tukamoto, “Phase-sensitive high-speed THz imaging,” J. Phys. D Appl. Phys. 37(5), 770–773 (2004).
[CrossRef]

Saito, S.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Sakai, K.

P. Gu, M. Tani, M. Hyodo, K. Sakai, and T. Hidaka, “Generation of cw-Terahertz Radiation Using a Two-Longitudinal-Mode Laser Diode,” Jpn. J. Appl. Phys. 37(Part 2, No. 8B), L976–L978 (1998).
[CrossRef]

Sartorius, B.

Schell, M.

Schlak, M.

Schmidt, D.

Schmitz, H.

A. Roggenbuck, H. Schmitz, A. Deninger, I. C. Mayorga, J. Hemberger, R. Gusten, and M. Gruninger, “Coherent broadband continuous-wave terahertz spectroscopy on solid-state samples,” N. J. Phys. 12(4), 043017 (2010).
[CrossRef]

Sekine, N.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Seta, T.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Shin, J.

Sim, E.

Stanze, D.

Tani, M.

P. Gu, M. Tani, M. Hyodo, K. Sakai, and T. Hidaka, “Generation of cw-Terahertz Radiation Using a Two-Longitudinal-Mode Laser Diode,” Jpn. J. Appl. Phys. 37(Part 2, No. 8B), L976–L978 (1998).
[CrossRef]

Tearney, G.

Thoma, A.

Tonouchi, M.

M. Tonouchi, “Cutting-edge terahertz technology,” Nat. Photonics 1(2), 97–105 (2007).
[CrossRef]

Tukamoto, K.

T. Hattori, K. Ohta, R. Rungsawang, and K. Tukamoto, “Phase-sensitive high-speed THz imaging,” J. Phys. D Appl. Phys. 37(5), 770–773 (2004).
[CrossRef]

Walther, M.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Wang, Q.

Wilk, R.

A. Klehr, J. Fricke, A. Knauer, G. Erbert, M. Walther, R. Wilk, M. Mikulics, and M. Koch, “High-power monolithic two-mode DFB laser diode for the generation of THz radiation,” IEEE J. Sel. Top. Quantum Electron. 14(2), 289–294 (2008).
[CrossRef]

Winnerl, S.

Wojtkowski, M.

Yasuda, H.

I. Hosako, N. Sekine, M. Patrashin, S. Saito, K. Fukunaga, Y. Kasai, P. Baron, T. Seta, J. Mendrok, S. Ochiai, and H. Yasuda, “At the Dawn of a New Era in Terahertz Technology,” Proc. IEEE 95(8), 1611–1623 (2007).
[CrossRef]

Yee, D.-S.

Yun, S. H.

Zhang, J.

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Figures (6)

Fig. 1
Fig. 1

Configuration of experimental setup for frequency-scanning optical beat source.

Fig. 2
Fig. 2

(a) Optical spectrum of wavelength-swept laser and (b) output spectra of spectrum-limited wavelength-swept laser and fixed DFB laser.

Fig. 3
Fig. 3

(a) Sweeping range of spectrum-limited wavelength-swept laser, (b) optical spectra of three static optical beat sources, and (c) autocorrelation traces of their beat frequencies.

Fig. 4
Fig. 4

Experimental setup for CW THz measurement system using frequency swept optical beat source; W-BPF: wide-bandpass filter; PC: polarization controller; FFP-TF: Fiber Fabry-Perot tunable filter; EDFA: erbium doped fiber amplifier; SOA: semiconductor optical amplifier; SMF: single mode fiber

Fig. 5
Fig. 5

Frequency tuning characteristic of THz emission from LTG-InGaAs photomixers illuminated by the frequency swept optical beat sources (steps 4.5 GHz)

Fig. 6
Fig. 6

Measured THz waveforms of (a) 350 GHz, (b) 460 GHz, (c) 820 GHz, and (d) 1.15 THz.

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