中国物理B ›› 2010, Vol. 19 ›› Issue (6): 64209-064209.doi: 10.1088/1674-1056/19/6/064209

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Spacing-adjustable and wavelength-tunable multiwavelength fibre laser with nonlinear Brillouin gain and birefringence fibre loop mirror

伍剑1, 徐坤1, 洪小斌1, 林金桐1, 张祖兴2   

  1. (1)Key Laboratory of Information Photonics and Optical Communications of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; (2)Key Laboratory of Information Photonics and Optical Communications of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China;College of Physics \& Communication Electronics, Key Lab of Photoelectron and Communicat
  • 收稿日期:2009-09-05 出版日期:2010-06-15 发布日期:2010-06-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos.~60702006, 60736002, 60807014, 60837004 and 60967002), China Postdoctoral Science Foundation, Open Fund of Key Laboratory of Information Photonics and Optical Communications

Spacing-adjustable and wavelength-tunable multiwavelength fibre laser with nonlinear Brillouin gain and birefringence fibre loop mirror

Zhang Zu-Xing(张祖兴)a)b)†, Wu Jian(伍剑) a), Xu Kun(徐坤)a), Hong Xiao-Bin(洪小斌)a), and Lin Jin-Tong(林金桐) a)   

  1. a Key Laboratory of Information Photonics and Optical Communications of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; b College of Physics & Communication Electronics, Key Lab of Photoelectron and Communications of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, China
  • Received:2009-09-05 Online:2010-06-15 Published:2010-06-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos.~60702006, 60736002, 60807014, 60837004 and 60967002), China Postdoctoral Science Foundation, Open Fund of Key Laboratory of Information Photonics and Optical Communications

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摘要： This paper demonstrates a room-temperature multiwavelength fibre laser with spacing-adjustability and wavelength-tunability. The nonlinear gain of self-excited stimulated Brillouin scattering can suppress mode competition induced by homogeneous broadening of Erbium-doped fibre. With the use of a birefringence fibre loop filter, the wavelength spacing can be adjusted by changing the length of the used birefringence fibre, and the lasing wavelengths can be finely tuned through modifying the filtering profile of the birefringence filter. Multiwavelength output with spectral spacing as small as 0.076~nm and a wavelength number of more than 80 has been successfully produced.

Abstract: This paper demonstrates a room-temperature multiwavelength fibre laser with spacing-adjustability and wavelength-tunability. The nonlinear gain of self-excited stimulated Brillouin scattering can suppress mode competition induced by homogeneous broadening of Erbium-doped fibre. With the use of a birefringence fibre loop filter, the wavelength spacing can be adjusted by changing the length of the used birefringence fibre, and the lasing wavelengths can be finely tuned through modifying the filtering profile of the birefringence filter. Multiwavelength output with spectral spacing as small as 0.076~nm and a wavelength number of more than 80 has been successfully produced.

Key words: multiwavelength fibre laser, stimulated Brillouin scattering, birefringence fibre loop mirror

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.Da (Resonators, cavities, amplifiers, arrays, and rings) 42.60.Fc (Modulation, tuning, and mode locking) 42.79.Bh (Lenses, prisms and mirrors) 42.79.Ci (Filters, zone plates, and polarizers) 42.60.Lh (Efficiency, stability, gain, and other operational parameters)