%0 Journal Article
%T Preparation and spectral characteristics of Bi-doped double cladding fiber<br>双包层掺Bi光纤的制备及其光谱特性研究
%A Wang Yan-Shan Jiang Zuo-Wen Luan Huan-Xun Zhang Ze-Xue Peng Jing-Gang Yang Lu|¨-Yun Li Jin-Yan Dai Neng-Li
%A <br>王岩山
%A 蒋作文
%A 栾怀训
%A 张泽学
%A 彭景刚
%A 杨旅云
%A 李进延
%A 戴能利
%J 物理学报
%D 2012
%I 
%X Bi-doped double cladding fiber preform is prepared by modified chemical vapor deposition and solution doping process.The absorption spectrum of preform and the near-infrared(NIR) luminescence spectrum of fiber are experimentally investigated.The luminescence spectrum of the fiber shows a peak emission band at 1140 nm with a full-width at half-maximum(FWHM) of 130 nm under 976 nm LD exciting.Under 808 or 793 nm LD exciting,an ultra-broad NIR emission with an FWHM of more than 250 nm is observed in the Bi-doped fiber,and the range of luminescence spectrum is from 1000 to 1700 nm.After the heat treatment of the Bi-doped fiber preform slice under 900°C for 1 h,under 808 nm LD exciting,the fluorescence intensity is about 4 times higher than that of the perform slice without heat treatment.The results indicate that the Bi-doped double cladding fiber is a promising gain medium used for ultrashort fiber lasers and tunable fiber lasers.
%K Bi-doped fiber
%K ultra-broad emission
%K double-clad fiber
%K heat treatment<br>掺Bi光纤
%K 超宽带发光
%K 双包层光纤
%K 热处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=78F360FC29C479119D68B646C61D0DE9&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=5D311CA918CA9A03&sid=64F7C5F19B382B31&eid=8C904E34BE11C3AD&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=21