Abstract

In this paper, we investigate a flexibly tunable multiwavelength fiber ring laser with a continuous wavelength spacing tunability, incorporating a superimposed chirped fiber Bragg grating (CFBG) at room temperature. We exploit versatile gain media such as erbium-doped fiber (EDF) and Raman amplifiers in generating the multiwavelength fiber ring laser. The wavelength spacing of a superimposed CFBG can be continuously controlled by modifying the chirp ratio of the grating with the specially designed apparatus. After configuring a fiber ring cavity with the proposed multichannel filter, we realize stable multiwavelength fiber ring lasers at room temperature, which are based on an EDF amplifier incorporating a highly nonlinear dispersion-shifted fiber or a Raman amplifier using a dispersion-compensated fiber. Power fluctuation is less than ~0.6 dB. No lasing wavelength change is severally observed for the whole tuning range. For the multiwavelength EDF laser, stable 11-wavelength simultaneous operation spaced at 0.51 nm, with a signal-to-noise ratio (SNR) of more than ~45 dB at room temperature, is achieved. A high-quality multiwavelength Raman laser output with stable 30 lasing wavelengths spaced at 0.51 nm with a high SNR of more than ~45 dB is also realized. By applying the proposed tuning technique to both the multiwavelength EDF and Raman lasers, a wide and continuous tunability of lasing wavelength spacing is successfully achieved, which is measured to be ~±0.033 nm/mm. By controlling the pump power in the multiwavelength Raman fiber ring laser, we can control the number of lasing channels at a wavelength spacing of 0.51 nm.

© 2007 IEEE

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  1. N. Park, P. F. Wysocki, "24-line multiwavelength operation of erbium-doped fiber-ring laser," IEEE Photon. Technol. Lett. 8, 1459-1461 (1996).
  2. J. Yang, S. C. Tjin, N. Q. Ngo, "Multiwavelength tunable fiber ring laser based on sampled chirp fiber Bragg grating ," IEEE Photon. Technol. Lett. 16, 1026-1028 (2004).
  3. A. Bellemare, M. Karasek, M. Rochette, S. LaRochelle, M. Tetu, "Room temperature multifrequency erbium-doped fiber laser anchored on the ITU frequency grid ," J. Lightw. Technol. 18, 825-831 (2000).
  4. D. N. Wang, F. W. Tong, X. Fang, W. Jin, P. K. A. Wai, J. M. Gong, "Multiwavelength erbium-doped fiber ring laser source with a hybrid gain medium," Opt. Commun. 228, 295-301 (2003).
  5. F. W. Tong, W. Jin, D. N. Wang, P. K. A. Wai, "Multiwavelength fiber laser with wavelength selectable from 1590 to 1645," Electron. Lett. 40, 594-595 (2004).
  6. Y. G. Han, G. Kim, J. H. Lee, S. H. Kim, S. B. Lee, "Lasing wavelength and spacing tunable multiwavelength fiber laser from 1510 to 1620 nm ," IEEE Photon. Technol. Lett. 17, 989-991 (2005).
  7. X. Liu, X. Zhou, X. Tang, J. Ng, J. Hao, T. Y. Chai, E. Leong, C. Lu, "Switchable and tunable multiwavelength erbium-doped fiber laser with fiber Bragg gratings and photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 1626-1628 (2005).
  8. X. Yang, X. Dong, S. Zhang, F. Lu, X. Zhou, C. Lu, "Multiwavelength erbium-doped fiber laser with 0.8 nm spacing using sampled Bragg grating and photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 2538-2540 (2005).
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  10. X. Feng, H. Y. Tam, P. K. A. Wai, "Switchable multiwavelength erbium-doped fiber laser with a multimode fiber Bragg grating and photonic crystal fiber," IEEE Photon. Technol. Lett. 18, 1088-1090 (2006).
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  12. H. Chen, "Multiwavelength fiber ring lasing by use of a semiconductor optical amplifier," Opt. Lett. 30, 619-621 (2005).
  13. H. Dong, G. Zhu, Q. Wang, H. Sun, N. K. Dutta, J. Jaques, A. B. Piccirilli, "Multiwavelength fiber ring laser source based on a delayed interferometer," IEEE Photon. Technol. Lett. 17, 303-305 (2005).
  14. J. Yao, J. Yao, Z. Deng, J. Liu, "Investigation of room-temperature multiwavelength fiber ring laser that incorporates an SOA-based phase modulator in the laser cavity," J. Lightw. Technol. 23, 2484-2490 (2005).
  15. Y. G. Han, C. S. Kim, J. U. Kang, U. Paek, Y. Chung, "Multiwavelength Raman fiber ring laser based on tunable cascaded long-period fiber gratings ," IEEE Photon. Technol. Lett. 15, 383-385 (2003).
  16. Y. G. Han, J. H. Lee, S. H. Kim, S. B. Lee, "Tunable multi-wavelength Raman fiber laser based on fiber Bragg grating cavity with PMF Lyot–Sagnac filter," Electron. Lett. 40, 1475-1476 (2004).
  17. X. Dong, P. Shum, C. C. Chan, N. Q. Ngo, "Novel spacing-tunable multiwavelength Raman fiber laser," Optical Fiber Commun. Conf. (OFC) AnaheimCA (2006) Paper OWI36.
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  19. T. Luo, L. S. Yan, Y.Q. Shi, Z. Pan, Y. W. Song, A. E. Willner, S. Yao, "Tunable wavelength spacing multi-wavelength ring laser using programmable DGD module as intra-cavity filter," Electron. Lett. 40, 1578-1579 (2004).
  20. J. Capmany, B. Ortega, D. Pastor, "A tutorial on microwave photonic filters," J. Lightw. Technol. 24, 201-229 (2006).
  21. X. M. Liu, "Four-wave mixing self-stability based on photonic crystal fiber and its applications on erbium-doped fiber lasers," Opt. Commun. 264, 554-559 (2006).
  22. Y. G. Han, X. Dong, J. H. Lee, S. B. Lee, "Wavelength spacing tunable multichannel filter incorporating a sampled chirped fiber Bragg grating based on symmetrical chirp tuning technique without center wavelength shift," Opt. Lett. 31, 3571-3573 (2006).
  23. Q. Wang, X. Liu, L. Xing, X. Feng, B. Zhou, "Experimental investigation of an inhomogeneous loss and its influence on multiwavelength fiber lasers," Opt. Lett. 30, 3033-3035 (2005).
  24. M. P. Fok, C. Shu, "Spacing-adjustable multi-wavelength source from a stimulated Brillouin scattering assisted erbium-doped fiber laser," Opt. Express 14, 2691-2624 (2006).
  25. S. Pan, C. Lou, "Stable multiwavelength erbium-doped fiber laser at room temperature with tunable wavelength, wavelength spacing, and channel number," Opt. Eng. 45, 114203/1-114203/1 (2006).

2006 (6)

X. Feng, H. Y. Tam, P. K. A. Wai, "Switchable multiwavelength erbium-doped fiber laser with a multimode fiber Bragg grating and photonic crystal fiber," IEEE Photon. Technol. Lett. 18, 1088-1090 (2006).

J. Capmany, B. Ortega, D. Pastor, "A tutorial on microwave photonic filters," J. Lightw. Technol. 24, 201-229 (2006).

X. M. Liu, "Four-wave mixing self-stability based on photonic crystal fiber and its applications on erbium-doped fiber lasers," Opt. Commun. 264, 554-559 (2006).

M. P. Fok, C. Shu, "Spacing-adjustable multi-wavelength source from a stimulated Brillouin scattering assisted erbium-doped fiber laser," Opt. Express 14, 2691-2624 (2006).

S. Pan, C. Lou, "Stable multiwavelength erbium-doped fiber laser at room temperature with tunable wavelength, wavelength spacing, and channel number," Opt. Eng. 45, 114203/1-114203/1 (2006).

Y. G. Han, X. Dong, J. H. Lee, S. B. Lee, "Wavelength spacing tunable multichannel filter incorporating a sampled chirped fiber Bragg grating based on symmetrical chirp tuning technique without center wavelength shift," Opt. Lett. 31, 3571-3573 (2006).

2005 (10)

H. Chen, "Multiwavelength fiber ring lasing by use of a semiconductor optical amplifier," Opt. Lett. 30, 619-621 (2005).

J. Magne, P. Giaccari, S. LaRochlle, "All-fiber comb filter with tunable free spectral range," Opt. Lett. 30, 2062-2064 (2005).

Q. Wang, X. Liu, L. Xing, X. Feng, B. Zhou, "Experimental investigation of an inhomogeneous loss and its influence on multiwavelength fiber lasers," Opt. Lett. 30, 3033-3035 (2005).

C. L. Chao, Z. Li, M. S. Demokan, X. Yang, W. Jin, "Switchable multiwavelength SOA-fiber ring laser based on a slanted multimode fiber Bragg grating ," Opt. Commun. 252, 52-57 (2005).

H. Dong, G. Zhu, Q. Wang, H. Sun, N. K. Dutta, J. Jaques, A. B. Piccirilli, "Multiwavelength fiber ring laser source based on a delayed interferometer," IEEE Photon. Technol. Lett. 17, 303-305 (2005).

J. Yao, J. Yao, Z. Deng, J. Liu, "Investigation of room-temperature multiwavelength fiber ring laser that incorporates an SOA-based phase modulator in the laser cavity," J. Lightw. Technol. 23, 2484-2490 (2005).

Y. G. Han, G. Kim, J. H. Lee, S. H. Kim, S. B. Lee, "Lasing wavelength and spacing tunable multiwavelength fiber laser from 1510 to 1620 nm ," IEEE Photon. Technol. Lett. 17, 989-991 (2005).

X. Liu, X. Zhou, X. Tang, J. Ng, J. Hao, T. Y. Chai, E. Leong, C. Lu, "Switchable and tunable multiwavelength erbium-doped fiber laser with fiber Bragg gratings and photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 1626-1628 (2005).

X. Yang, X. Dong, S. Zhang, F. Lu, X. Zhou, C. Lu, "Multiwavelength erbium-doped fiber laser with 0.8 nm spacing using sampled Bragg grating and photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 2538-2540 (2005).

A. Zhang, H. Liu, M. S. Demokan, H. Y. Tamm, "Stable and broad bandwidth multiwavelength fiber ring laser incorporating a highly nonlinear photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 2538-2540 (2005).

2004 (4)

J. Yang, S. C. Tjin, N. Q. Ngo, "Multiwavelength tunable fiber ring laser based on sampled chirp fiber Bragg grating ," IEEE Photon. Technol. Lett. 16, 1026-1028 (2004).

F. W. Tong, W. Jin, D. N. Wang, P. K. A. Wai, "Multiwavelength fiber laser with wavelength selectable from 1590 to 1645," Electron. Lett. 40, 594-595 (2004).

Y. G. Han, J. H. Lee, S. H. Kim, S. B. Lee, "Tunable multi-wavelength Raman fiber laser based on fiber Bragg grating cavity with PMF Lyot–Sagnac filter," Electron. Lett. 40, 1475-1476 (2004).

T. Luo, L. S. Yan, Y.Q. Shi, Z. Pan, Y. W. Song, A. E. Willner, S. Yao, "Tunable wavelength spacing multi-wavelength ring laser using programmable DGD module as intra-cavity filter," Electron. Lett. 40, 1578-1579 (2004).

2003 (2)

D. N. Wang, F. W. Tong, X. Fang, W. Jin, P. K. A. Wai, J. M. Gong, "Multiwavelength erbium-doped fiber ring laser source with a hybrid gain medium," Opt. Commun. 228, 295-301 (2003).

Y. G. Han, C. S. Kim, J. U. Kang, U. Paek, Y. Chung, "Multiwavelength Raman fiber ring laser based on tunable cascaded long-period fiber gratings ," IEEE Photon. Technol. Lett. 15, 383-385 (2003).

2000 (1)

A. Bellemare, M. Karasek, M. Rochette, S. LaRochelle, M. Tetu, "Room temperature multifrequency erbium-doped fiber laser anchored on the ITU frequency grid ," J. Lightw. Technol. 18, 825-831 (2000).

1996 (1)

N. Park, P. F. Wysocki, "24-line multiwavelength operation of erbium-doped fiber-ring laser," IEEE Photon. Technol. Lett. 8, 1459-1461 (1996).

Electron. Lett. (3)

F. W. Tong, W. Jin, D. N. Wang, P. K. A. Wai, "Multiwavelength fiber laser with wavelength selectable from 1590 to 1645," Electron. Lett. 40, 594-595 (2004).

Y. G. Han, J. H. Lee, S. H. Kim, S. B. Lee, "Tunable multi-wavelength Raman fiber laser based on fiber Bragg grating cavity with PMF Lyot–Sagnac filter," Electron. Lett. 40, 1475-1476 (2004).

T. Luo, L. S. Yan, Y.Q. Shi, Z. Pan, Y. W. Song, A. E. Willner, S. Yao, "Tunable wavelength spacing multi-wavelength ring laser using programmable DGD module as intra-cavity filter," Electron. Lett. 40, 1578-1579 (2004).

IEEE Photon. Technol. Lett. (9)

Y. G. Han, C. S. Kim, J. U. Kang, U. Paek, Y. Chung, "Multiwavelength Raman fiber ring laser based on tunable cascaded long-period fiber gratings ," IEEE Photon. Technol. Lett. 15, 383-385 (2003).

H. Dong, G. Zhu, Q. Wang, H. Sun, N. K. Dutta, J. Jaques, A. B. Piccirilli, "Multiwavelength fiber ring laser source based on a delayed interferometer," IEEE Photon. Technol. Lett. 17, 303-305 (2005).

N. Park, P. F. Wysocki, "24-line multiwavelength operation of erbium-doped fiber-ring laser," IEEE Photon. Technol. Lett. 8, 1459-1461 (1996).

J. Yang, S. C. Tjin, N. Q. Ngo, "Multiwavelength tunable fiber ring laser based on sampled chirp fiber Bragg grating ," IEEE Photon. Technol. Lett. 16, 1026-1028 (2004).

Y. G. Han, G. Kim, J. H. Lee, S. H. Kim, S. B. Lee, "Lasing wavelength and spacing tunable multiwavelength fiber laser from 1510 to 1620 nm ," IEEE Photon. Technol. Lett. 17, 989-991 (2005).

X. Liu, X. Zhou, X. Tang, J. Ng, J. Hao, T. Y. Chai, E. Leong, C. Lu, "Switchable and tunable multiwavelength erbium-doped fiber laser with fiber Bragg gratings and photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 1626-1628 (2005).

X. Yang, X. Dong, S. Zhang, F. Lu, X. Zhou, C. Lu, "Multiwavelength erbium-doped fiber laser with 0.8 nm spacing using sampled Bragg grating and photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 2538-2540 (2005).

A. Zhang, H. Liu, M. S. Demokan, H. Y. Tamm, "Stable and broad bandwidth multiwavelength fiber ring laser incorporating a highly nonlinear photonic crystal fiber," IEEE Photon. Technol. Lett. 17, 2538-2540 (2005).

X. Feng, H. Y. Tam, P. K. A. Wai, "Switchable multiwavelength erbium-doped fiber laser with a multimode fiber Bragg grating and photonic crystal fiber," IEEE Photon. Technol. Lett. 18, 1088-1090 (2006).

J. Lightw. Technol. (3)

A. Bellemare, M. Karasek, M. Rochette, S. LaRochelle, M. Tetu, "Room temperature multifrequency erbium-doped fiber laser anchored on the ITU frequency grid ," J. Lightw. Technol. 18, 825-831 (2000).

J. Yao, J. Yao, Z. Deng, J. Liu, "Investigation of room-temperature multiwavelength fiber ring laser that incorporates an SOA-based phase modulator in the laser cavity," J. Lightw. Technol. 23, 2484-2490 (2005).

J. Capmany, B. Ortega, D. Pastor, "A tutorial on microwave photonic filters," J. Lightw. Technol. 24, 201-229 (2006).

Opt. Commun. (3)

X. M. Liu, "Four-wave mixing self-stability based on photonic crystal fiber and its applications on erbium-doped fiber lasers," Opt. Commun. 264, 554-559 (2006).

D. N. Wang, F. W. Tong, X. Fang, W. Jin, P. K. A. Wai, J. M. Gong, "Multiwavelength erbium-doped fiber ring laser source with a hybrid gain medium," Opt. Commun. 228, 295-301 (2003).

C. L. Chao, Z. Li, M. S. Demokan, X. Yang, W. Jin, "Switchable multiwavelength SOA-fiber ring laser based on a slanted multimode fiber Bragg grating ," Opt. Commun. 252, 52-57 (2005).

Opt. Eng. (1)

S. Pan, C. Lou, "Stable multiwavelength erbium-doped fiber laser at room temperature with tunable wavelength, wavelength spacing, and channel number," Opt. Eng. 45, 114203/1-114203/1 (2006).

Opt. Express (1)

M. P. Fok, C. Shu, "Spacing-adjustable multi-wavelength source from a stimulated Brillouin scattering assisted erbium-doped fiber laser," Opt. Express 14, 2691-2624 (2006).

Opt. Lett. (4)

Other (1)

X. Dong, P. Shum, C. C. Chan, N. Q. Ngo, "Novel spacing-tunable multiwavelength Raman fiber laser," Optical Fiber Commun. Conf. (OFC) AnaheimCA (2006) Paper OWI36.

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