310 W single-frequency all-fiber laser in master oscillator power amplification configuration

被引：31
|
作者：
Wang, X. L. [1 ]
Zhou, P. [1 ]
Xiao, H. [1 ]
Ma, Y. X. [1 ]
Xu, X. J. [1 ]
Liu, Z. J. [1 ]
机构：
[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
LASER PHYSICS LETTERS | 2012年 / 9卷 / 08期
关键词：
all-fiber laser; single-frequency; master oscillator power amplification; STIMULATED-BRILLOUIN-SCATTERING; GAIN COMPETITION; AMPLIFIERS; SCALABILITY; SUPPRESSION; NOISE; MODE;
D O I：
10.7452/lapl.201210043
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a high power, single-frequency fiber amplifier based on master oscillator power amplification (MOPA) chains in all-fiber configuration. A 1.5 meter long highly doped Yb fiber with absorption coefficient as high as 16 dB/m at the 975 nm wavelength is used for the main power amplifier, no special assistant stimulated Brillouin scattering (SBS) suppression approach is employed. The maximal output power of the single-frequency fiber amplifier is 310 watt and of good beam quality with a measured M-2 factor about 1.3. The amplifier is tested more than 10 hours, no obvious power decrease is observed. To the best of our knowledge, this is the highest power of single-frequency fiber amplifier in all-fiber format. (C) 2012 by Astro, Ltd.
引用
收藏
页码：591 / 595
页数：5
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