Abstract

This paper describes a phase-locked multicarrier light source that employs a continuous wave (CW) light source, two phase modulators, and a dispersion medium. A sinusoidal phase modulation (PM) with a modulation index of $\pi/4$ and a group velocity dispersion of ${\pm}1/(4\pi f_{m}^{2})$, where $f_{m}$ is the modulation frequency, are applied to a CW light followed by a large sinusoidal PM. This configuration provides a multicarrier light with a flattened optical power spectrum for any modulation index of the second PM. By adopting a chirped fiber Bragg grating (FBG) as a dispersion medium instead of a long normal dispersion fiber, we can increase the stability of the optical output spectrum and reduce the size of the multicarrier light generator. We have built a prototype with this configuration that generates a 61-carrier light with a 25 GHz interval and a power deviation of less than 8 dB.

© 2009 IEEE

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  1. M. Kourogi, K. Nakagawa, M. Ohtsu, "Wide-span optical frequency comb generator for accurate optical frequency difference measurement," IEEE J. Quantum Electron. 29, 2693-2701 (1993).
  2. E. Yamada, H. Takara, T. Ohara, K. Sato, K. Jinguji, Y. Inoue, T. Shibata, T. Morioka, "106 channel$\,\times\,$10 Gbit/s, 640 km DWDM transmission with 25 GHz spacing with supercontinuum multi-carrier source," Electron. Lett. 37, 1534-1536 (2001).
  3. Y. Miyagawa, T. Yamamoto, H. Masuda, M. Abe, H. Takahashi, H. Takara, "Over-10000-channel 2.5 GHz-spaced ultra-dense WDM light source," Electron. Lett. 42, 655-657 (2006).
  4. M. Fujiwara, M. Teshima, J. Kani, H. Suzuki, N. Takachio, K. Iwatsuki, "Optical carrier supply module using flattened optical multicarrier generation based on sinusoidal amplitude and phase hybrid modulation," J. Lightw. Technol. 21, 2705-2714 (2003).
  5. M. Sugiyama, M. Doi, F. Futami, S. Watanabe, H. Onaka, "A low drive voltage LiNbO$_{3}$ phase and intensity integrated modulator for optical frequency comb generation and short pulse generation," presented at the Eur. Conf. Optical Communication (ECOC 2004) StockholmSweden () Paper Tu3.4.3.
  6. T. Sakamoto, T. Kawanishi, M. Izutsu, "Optical frequency comb generation using asymmetrically dual-driven Mach–Zehnder modulator," presented at the Eur. Conf. Optical Communication (ECOC 2005) GlasgowScotland () Paper We.4.P.121.
  7. A. Takada, K. Sato, M. Saruwatari, M. Yamamoto, "Pulse width tunable subpicosecond pulse generation from an active modelocked monolithic MQW laser/MQW electroabsorption modulator," Electron. Lett. 30, 898-900 (1994).
  8. M. Nakazawa, E. Yoshida, Y. Kimura, "Ultrastable harmonically and regeneratively modelocked polarization-maintaining erbium fibre ring laser," Electron. Lett. 30, 1603-1605 (1994).
  9. H. Takara, S. Kawanishi, M. Saruwatari, "Stabilization of a mode locked Er-doped fibre laser by suppressing the relaxation oscillation frequency component," Electron. Lett. 31, 292-293 (1995).
  10. E. Yamazaki, F. Inuzuka, K. Yonenaga, A. Takada, M. Koga, "Compensation of interchannel crosstalk induced by optical fiber nonlinearity in carrier phase-locked WDM system," IEEE Photon. Technol. Lett. 19, 9-11 (2007).
  11. F. Inuzuka, E. Yamazaki, K. Yonenaga, A. Takada, "Nonlinear inter-channel crosstalk compensation using electronic pre-distortion in carrier phase locked WDM," presented at the Optical Fiber Communication Conf. and Exposition/National Fiber Optic Engineers Conf. (OFC/NFOEC 2008) San DiegoUSA () Paper OTuO5.
  12. T. Kobayashi, A. Sano, E. Yamada, Y. Miyamoto, H. Takara, A. Takada, "Electro-optically subcarrier multiplexed 110 Gb/s OFDM signal transmission over 80 km SMF without dispersion compensation," presented at the 12th Optoelectronics and Communications Conf./16th International Conf. on Integrated Optics and Optical Fiber Communication (OECC/IOOC 2007) ().
  13. J. L. Hall, J. Ye, "Optical frequency standards and measurement," IEEE Trans. Instrum. Meas. 52, 227-231 (2003).
  14. T. Yamamoto, H. Takara, S. Kawanishi, "Generation and transmission of tunable terahertz optical clock," presented at the Int. Topical Meeting Microwave Photon (MWP 2002) () pp. 97-100.
  15. T. Morioka, K. Okamoto, M. Ishii, M. Saruwatari, "Low-noise, pulsewidth tunable picosecond to femtosecond pulse generation by spectral filtering of wideband supercontinuum with variable bandwidth arrayed-waveguide grating filters," Electron. Lett. 32, 836-837 (1996).
  16. T. Yamamoto, T. Komukai, S. Kawanishi, K. Suzuki, A. Takada, "Optical frequency comb generation using phase modulators and group velocity dispersion medium," presented at the 2006 Asia-Pacific Microwave Photon. Conf. (AP-MWP 2006) () pp. 225-227.
  17. T. Yamamoto, T. Komukai, K. Suzuki, A. Takada, "Spectrally flattened phase-locked multi-carrier light generator with phase modulators and chirped fibre Bragg grating," Electron. Lett. 43, 1040-1042 (2007).
  18. T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, T. Sueta, "Optical pulse compression using high-frequency electrooptic phase modulation," IEEE J. Quantum Electron. 24, 382-387 (1988).
  19. T. Komukai, T. Yamamoto, S. Kawanishi, "Optical pulse generator using phase modulator and linearly chirped fiber Bragg gratings," IEEE Photon. Technol. Lett. 17, 1746-1748 (2005).
  20. T. Ohara, H. Takara, T. Yamamoto, H. Masuda, T. Morioka, M. Abe, H. Takahashi, "Over-1000-channel ultradense WDM transmission with supercontinuum multicarrier source," J. Lightw. Technol. 24, 2311-2317 (2006).
  21. T. Imai, T. Komukai, M. Nakazawa, "Dispersion tuning of a linearly chirped fiber Bragg grating without a center wavelength shift by applying a strain gradient," IEEE Photon. Technol. Lett. 10, 845-847 (1998).
  22. B. Dabarsyah, C. S. Goh, S. K. Khijwania, S. Y. Set, K. Katoh, K. Kikuchi, "Adjustable dispersion-compensation devices with wavelength tunability based on enhanced thermal chirping of fiber Bragg grating," IEEE Photon. Technol. Lett. 15, 416-418 (2003).
  23. T. Komukai, T. Inui, M. Nakazawa, "Group delay ripple reduction and reflection increase in a chirped fiber Bragg grating by multiple-overwriting of a phase mask with an electron-beam," IEEE Photon. Technol. Lett. 12, 816-818 (2000).
  24. T. Komukai, T. Inui, M. Kurihara, S. Fujimoto, "Group-delay ripple reduction in step-chirped fiber Bragg gratings by using laser-beam written step-chirped phase masks," IEEE Photon. Technol. Lett. 14, 1554-1556 (2002).

2007 (2)

E. Yamazaki, F. Inuzuka, K. Yonenaga, A. Takada, M. Koga, "Compensation of interchannel crosstalk induced by optical fiber nonlinearity in carrier phase-locked WDM system," IEEE Photon. Technol. Lett. 19, 9-11 (2007).

T. Yamamoto, T. Komukai, K. Suzuki, A. Takada, "Spectrally flattened phase-locked multi-carrier light generator with phase modulators and chirped fibre Bragg grating," Electron. Lett. 43, 1040-1042 (2007).

2006 (2)

T. Ohara, H. Takara, T. Yamamoto, H. Masuda, T. Morioka, M. Abe, H. Takahashi, "Over-1000-channel ultradense WDM transmission with supercontinuum multicarrier source," J. Lightw. Technol. 24, 2311-2317 (2006).

Y. Miyagawa, T. Yamamoto, H. Masuda, M. Abe, H. Takahashi, H. Takara, "Over-10000-channel 2.5 GHz-spaced ultra-dense WDM light source," Electron. Lett. 42, 655-657 (2006).

2005 (1)

T. Komukai, T. Yamamoto, S. Kawanishi, "Optical pulse generator using phase modulator and linearly chirped fiber Bragg gratings," IEEE Photon. Technol. Lett. 17, 1746-1748 (2005).

2003 (3)

B. Dabarsyah, C. S. Goh, S. K. Khijwania, S. Y. Set, K. Katoh, K. Kikuchi, "Adjustable dispersion-compensation devices with wavelength tunability based on enhanced thermal chirping of fiber Bragg grating," IEEE Photon. Technol. Lett. 15, 416-418 (2003).

M. Fujiwara, M. Teshima, J. Kani, H. Suzuki, N. Takachio, K. Iwatsuki, "Optical carrier supply module using flattened optical multicarrier generation based on sinusoidal amplitude and phase hybrid modulation," J. Lightw. Technol. 21, 2705-2714 (2003).

J. L. Hall, J. Ye, "Optical frequency standards and measurement," IEEE Trans. Instrum. Meas. 52, 227-231 (2003).

2002 (1)

T. Komukai, T. Inui, M. Kurihara, S. Fujimoto, "Group-delay ripple reduction in step-chirped fiber Bragg gratings by using laser-beam written step-chirped phase masks," IEEE Photon. Technol. Lett. 14, 1554-1556 (2002).

2001 (1)

E. Yamada, H. Takara, T. Ohara, K. Sato, K. Jinguji, Y. Inoue, T. Shibata, T. Morioka, "106 channel$\,\times\,$10 Gbit/s, 640 km DWDM transmission with 25 GHz spacing with supercontinuum multi-carrier source," Electron. Lett. 37, 1534-1536 (2001).

2000 (1)

T. Komukai, T. Inui, M. Nakazawa, "Group delay ripple reduction and reflection increase in a chirped fiber Bragg grating by multiple-overwriting of a phase mask with an electron-beam," IEEE Photon. Technol. Lett. 12, 816-818 (2000).

1998 (1)

T. Imai, T. Komukai, M. Nakazawa, "Dispersion tuning of a linearly chirped fiber Bragg grating without a center wavelength shift by applying a strain gradient," IEEE Photon. Technol. Lett. 10, 845-847 (1998).

1996 (1)

T. Morioka, K. Okamoto, M. Ishii, M. Saruwatari, "Low-noise, pulsewidth tunable picosecond to femtosecond pulse generation by spectral filtering of wideband supercontinuum with variable bandwidth arrayed-waveguide grating filters," Electron. Lett. 32, 836-837 (1996).

1995 (1)

H. Takara, S. Kawanishi, M. Saruwatari, "Stabilization of a mode locked Er-doped fibre laser by suppressing the relaxation oscillation frequency component," Electron. Lett. 31, 292-293 (1995).

1994 (2)

A. Takada, K. Sato, M. Saruwatari, M. Yamamoto, "Pulse width tunable subpicosecond pulse generation from an active modelocked monolithic MQW laser/MQW electroabsorption modulator," Electron. Lett. 30, 898-900 (1994).

M. Nakazawa, E. Yoshida, Y. Kimura, "Ultrastable harmonically and regeneratively modelocked polarization-maintaining erbium fibre ring laser," Electron. Lett. 30, 1603-1605 (1994).

1993 (1)

M. Kourogi, K. Nakagawa, M. Ohtsu, "Wide-span optical frequency comb generator for accurate optical frequency difference measurement," IEEE J. Quantum Electron. 29, 2693-2701 (1993).

1988 (1)

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, T. Sueta, "Optical pulse compression using high-frequency electrooptic phase modulation," IEEE J. Quantum Electron. 24, 382-387 (1988).

Electron. Lett. (7)

E. Yamada, H. Takara, T. Ohara, K. Sato, K. Jinguji, Y. Inoue, T. Shibata, T. Morioka, "106 channel$\,\times\,$10 Gbit/s, 640 km DWDM transmission with 25 GHz spacing with supercontinuum multi-carrier source," Electron. Lett. 37, 1534-1536 (2001).

Y. Miyagawa, T. Yamamoto, H. Masuda, M. Abe, H. Takahashi, H. Takara, "Over-10000-channel 2.5 GHz-spaced ultra-dense WDM light source," Electron. Lett. 42, 655-657 (2006).

A. Takada, K. Sato, M. Saruwatari, M. Yamamoto, "Pulse width tunable subpicosecond pulse generation from an active modelocked monolithic MQW laser/MQW electroabsorption modulator," Electron. Lett. 30, 898-900 (1994).

M. Nakazawa, E. Yoshida, Y. Kimura, "Ultrastable harmonically and regeneratively modelocked polarization-maintaining erbium fibre ring laser," Electron. Lett. 30, 1603-1605 (1994).

H. Takara, S. Kawanishi, M. Saruwatari, "Stabilization of a mode locked Er-doped fibre laser by suppressing the relaxation oscillation frequency component," Electron. Lett. 31, 292-293 (1995).

T. Morioka, K. Okamoto, M. Ishii, M. Saruwatari, "Low-noise, pulsewidth tunable picosecond to femtosecond pulse generation by spectral filtering of wideband supercontinuum with variable bandwidth arrayed-waveguide grating filters," Electron. Lett. 32, 836-837 (1996).

T. Yamamoto, T. Komukai, K. Suzuki, A. Takada, "Spectrally flattened phase-locked multi-carrier light generator with phase modulators and chirped fibre Bragg grating," Electron. Lett. 43, 1040-1042 (2007).

IEEE J. Quantum Electron. (1)

M. Kourogi, K. Nakagawa, M. Ohtsu, "Wide-span optical frequency comb generator for accurate optical frequency difference measurement," IEEE J. Quantum Electron. 29, 2693-2701 (1993).

IEEE J. Quantum Electron. (1)

T. Kobayashi, H. Yao, K. Amano, Y. Fukushima, A. Morimoto, T. Sueta, "Optical pulse compression using high-frequency electrooptic phase modulation," IEEE J. Quantum Electron. 24, 382-387 (1988).

IEEE Photon. Technol. Lett. (1)

T. Komukai, T. Inui, M. Nakazawa, "Group delay ripple reduction and reflection increase in a chirped fiber Bragg grating by multiple-overwriting of a phase mask with an electron-beam," IEEE Photon. Technol. Lett. 12, 816-818 (2000).

IEEE Photon. Technol. Lett. (5)

T. Komukai, T. Inui, M. Kurihara, S. Fujimoto, "Group-delay ripple reduction in step-chirped fiber Bragg gratings by using laser-beam written step-chirped phase masks," IEEE Photon. Technol. Lett. 14, 1554-1556 (2002).

T. Imai, T. Komukai, M. Nakazawa, "Dispersion tuning of a linearly chirped fiber Bragg grating without a center wavelength shift by applying a strain gradient," IEEE Photon. Technol. Lett. 10, 845-847 (1998).

B. Dabarsyah, C. S. Goh, S. K. Khijwania, S. Y. Set, K. Katoh, K. Kikuchi, "Adjustable dispersion-compensation devices with wavelength tunability based on enhanced thermal chirping of fiber Bragg grating," IEEE Photon. Technol. Lett. 15, 416-418 (2003).

T. Komukai, T. Yamamoto, S. Kawanishi, "Optical pulse generator using phase modulator and linearly chirped fiber Bragg gratings," IEEE Photon. Technol. Lett. 17, 1746-1748 (2005).

E. Yamazaki, F. Inuzuka, K. Yonenaga, A. Takada, M. Koga, "Compensation of interchannel crosstalk induced by optical fiber nonlinearity in carrier phase-locked WDM system," IEEE Photon. Technol. Lett. 19, 9-11 (2007).

IEEE Trans. Instrum. Meas. (1)

J. L. Hall, J. Ye, "Optical frequency standards and measurement," IEEE Trans. Instrum. Meas. 52, 227-231 (2003).

J. Lightw. Technol. (1)

T. Ohara, H. Takara, T. Yamamoto, H. Masuda, T. Morioka, M. Abe, H. Takahashi, "Over-1000-channel ultradense WDM transmission with supercontinuum multicarrier source," J. Lightw. Technol. 24, 2311-2317 (2006).

J. Lightw. Technol. (1)

M. Fujiwara, M. Teshima, J. Kani, H. Suzuki, N. Takachio, K. Iwatsuki, "Optical carrier supply module using flattened optical multicarrier generation based on sinusoidal amplitude and phase hybrid modulation," J. Lightw. Technol. 21, 2705-2714 (2003).

Other (6)

M. Sugiyama, M. Doi, F. Futami, S. Watanabe, H. Onaka, "A low drive voltage LiNbO$_{3}$ phase and intensity integrated modulator for optical frequency comb generation and short pulse generation," presented at the Eur. Conf. Optical Communication (ECOC 2004) StockholmSweden () Paper Tu3.4.3.

T. Sakamoto, T. Kawanishi, M. Izutsu, "Optical frequency comb generation using asymmetrically dual-driven Mach–Zehnder modulator," presented at the Eur. Conf. Optical Communication (ECOC 2005) GlasgowScotland () Paper We.4.P.121.

F. Inuzuka, E. Yamazaki, K. Yonenaga, A. Takada, "Nonlinear inter-channel crosstalk compensation using electronic pre-distortion in carrier phase locked WDM," presented at the Optical Fiber Communication Conf. and Exposition/National Fiber Optic Engineers Conf. (OFC/NFOEC 2008) San DiegoUSA () Paper OTuO5.

T. Kobayashi, A. Sano, E. Yamada, Y. Miyamoto, H. Takara, A. Takada, "Electro-optically subcarrier multiplexed 110 Gb/s OFDM signal transmission over 80 km SMF without dispersion compensation," presented at the 12th Optoelectronics and Communications Conf./16th International Conf. on Integrated Optics and Optical Fiber Communication (OECC/IOOC 2007) ().

T. Yamamoto, H. Takara, S. Kawanishi, "Generation and transmission of tunable terahertz optical clock," presented at the Int. Topical Meeting Microwave Photon (MWP 2002) () pp. 97-100.

T. Yamamoto, T. Komukai, S. Kawanishi, K. Suzuki, A. Takada, "Optical frequency comb generation using phase modulators and group velocity dispersion medium," presented at the 2006 Asia-Pacific Microwave Photon. Conf. (AP-MWP 2006) () pp. 225-227.

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