Broadband flat-amplitude multiwavelength Brillouin-Raman fiber laser with spectral reshaping by Rayleigh scattering

被引：71

作者：

Wang, Zinan ^{[1
]}

Wu, Han ^{[1
]}

Fan, Mengqiu ^{[1
]}

Li, Yi ^{[1
]}

Gong, Yuan ^{[1
]}

Rao, Yunjiang ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Educ Minist China, Key Lab Opt Fiber Sensing & Commun, Chengdu 611731, Peoples R China

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 24期

基金：

高等学校博士学科点专项科研基金;

关键词：

HALF-OPEN CAVITY; LINEAR CAVITY; GENERATION; FEEDBACK; GAIN;

D O I：

10.1364/OE.21.029358

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this letter, we propose a novel configuration for generating multiwavelength Brillouin-Raman fiber laser (MBRFL). The spectral reshaping effect introduced by Rayleigh scattering in a 50km single mode fiber unifies the generated Brillouin comb in terms of both power level and linewidth. As a consequence, we are able to obtain a 40nm flat-amplitude MBRFL with wide bandwidth from 1557nm to 1597nm covering >500 Stokes lines. This is, to the best of our knowledge, the widest flat-amplitude bandwidth of MBRFL with uniform Stokes combs using just a single Raman pump laser. The channel-spacing is 0.08nm and the measured OSNR is higher than 12.5dB. We also demonstrate that the output spectrum of the MBRFL is nearly unaffected over 14dB range of Brillouin pumping power. (C) 2013 Optical Society of America

引用

页码：29358 / 29364

页数：7

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