%0 Journal Article
%T Gain characteristics of high-concentration Er3+/Yb3+-codoped phosphate fiber amplifier<br>高浓度镱铒共掺磷酸盐光纤放大器增益特性
%A Song Feng
%A Su Rui-Yuan
%A Fu Qiang
%A Qin Bin
%A Tian Jian-Guo
%A Zhang Guang-Yin
%A <br>宋 峰
%A 苏瑞渊
%A 傅 强
%A 覃 斌
%A 田建国
%A 张光寅
%J 物理学报
%D 2005
%I 
%X The gain characteristics of Er3+/Yb3+-codoped phosphate fiber amplifier pumped with light of 980nm wavelength are theoretically studied in this paper. With the help of rate equations and the propagation equation of Er3+/Yb3+-codoped phosphate fiber, we analyzed the effects of concentration of erbium and ytterbium ions, pump power, signal power and fiber length on the gain characteristics of the co-doped fiber amplifier. Comparison with singly erbium-doped fiber amplifier was also made. It is shown that the sensitization of Yb3+ decreases the clustering effect of erbium ions in the fiber and the gain and pump efficiency of Er3+/Yb3+ co-doped fiber are apparently higher than that of singly erbium-doped fiber. Numerical results also demonstrate that considerable signal gain of 10dB can be achieved in a 3.2cm-long fiber amplifier with 20dBm(100mW) pumping power at 980 nm.
%K erbium-ytterbium co-doped fiber amplifier
%K rate equation
%K propagation equation
%K high concentration<br>镱铒共掺光纤放大器，
%K 速率方程，
%K 传输方程，
%K 高浓度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=4B6FACB705EFE9B1&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=708DD6B15D2464E8&sid=ABA94CCDB1A7D184&eid=79777B1B3B1D4EE3&journal_id=1000-3290&journal_name=物理学报&referenced_num=3&reference_num=18