%0 Journal Article
%T Experimental research on single-frequency fiber Raman amplifier<br>单频光纤拉曼放大器的实验研究
%A Xu Jiang-Ming
%A Leng Jin-Yong
%A Han Kai
%A Zhou Pu
%A Hou Jing
%A <br>许将明
%A 冷进勇
%A 韩凯
%A 周朴
%A 侯静
%J 物理学报
%D 2012
%I 
%X Single-frequency fiber Raman amplifier (SF-FRA) is known for the ability of all-band amplification, and it is very attractive for the amplification of single-frequency seed light at a special wavelength, such as 1178nm and 1271nm. The 1080nm single-frequency signal light is amplified by a 1031nm pump source, and the influences of seed power of single-frequency signal light, length of Raman gain fiber, pump scheme are experimentally investigated. The results show that the efficiency of SF-FRA increases with the enhancement of the single-frequency signal power and the length of Raman gain fiber. The efficiency of co-pump SF-FRA is higher than that of the counter-pump SF-FRA. The measure ments show that the linewidth of single-frequency signal light is not broadened obviously in the process of Raman amplification. The visibilities of the rapid-exposure pattern of far-field interference of single-frequency seed light and the amplified light are 0.814 and 0.719, respectively. The results show that the coherence of single-frequency signal light is affected by the SF-FRA more or less. These experimental results can provide a reference for designing other special wavelength SF-FRA.
%K fiber Raman amplifier
%K single-frequency
%K output characteristic
%K influences factors<br>光纤拉曼放大器
%K 单频
%K 输出特性
%K 影响因素
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=78F360FC29C47911B9ECEB98796AFB57&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=DF92D298D3FF1E6E&sid=2B0D02C9CDE88227&eid=E6586A85A63A983D&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=10