Efficient Raman fiber laser based on random Rayleigh distributed feedback with record high power

被引：92
|
作者：
Zhang, H. [1 ]
Zhou, P. [1 ]
Xiao, H. [1 ]
Xu, X. [1 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
LASER PHYSICS LETTERS | 2014年 / 11卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Raman effect; random fiber laser; Rayleigh scattering; BRILLOUIN; CAVITY;
D O I：
10.1088/1612-2011/11/7/075104
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a high-power Raman fiber laser based on randomly extremely weak Rayleigh feedback. Based on a mirrorless configuration, a total output power of 73.7 W is achieved with an optical efficiency of 74.7%. The cavity length of the Raman fiber laser is only 300 m. The Stokes wave is centered at 1184 nm with 3 dB bandwidth of about 4 nm at the maximal power. The spectrum and time-domain behavior at the Raman Stokes wave generation threshold is different from previous random distributed feedback Raman fiber lasers.
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页数：4
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