%0 Journal Article
%T A 168-W high-power single-frequency amplifier in an all-fiber configuration<br>
%A Xiao Hu
%A Dong Xiao-Lin
%A Zhou Pu
%A Xu Xiao-Jun
%A Zhao Guo-Min
%A <br>
%J 中国物理 B
%D 2012
%I 
%X We present a high-power, single-frequency, narrow linewidth fiber amplifier based on master oscillator power amplification chains in an all-fiber configuration. The effect of the delivery fiber on the maximum output power is studied. A home-made 1064-nm seed laser with a 20-kHz linewidth is boosted to 129 W, and limited by stimulated Brillouin scattering (SBS) when the delivery fiber is 1.2 m long. By shortening the delivery fiber length to 0.7 m, the SBS threshold is increased efficiently and the maximum output power rises to 168 W with an 82.9% power conversion efficiency. The experimental results indicate that the output power can be further raised by shortening the delivery fiber length and increasing the pump power.
%K fiber amplifier
%K single frequency
%K all-fiber
%K stimulated Brillouin scattering<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=8DDEB85749F7F529384308071E4BF661&yid=99E9153A83D4CB11&vid=659D3B06EBF534A7&iid=38B194292C032A66&sid=865F6913DAA57D68&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=14