%0 Journal Article
%T Study on the Upper State Population Distribution of Double Cladding Erbium-ytterbium Co-doped Fiber Amplifiers<br>双包层Er-Yb共掺光纤放大器上能级粒子数分布研究
%A 夏贵进
%A 张居梅
%A 何海光
%J 光子学报
%D 2004
%I 
%X Based on rate and power propagation equations, the upper state population distribution of Er 3+ and Yb 3+ of an double cladding erbium-ytterbium co-doped fiber amplifier was analyzed numerically under three different 972 nm pumping scheme. It was shown that the upper state population distribution of Er 3+ is chiefly affected by signal power and its lasing rate is almost kept upward of 50%; and that the upper state population distribution of Yb 3+ is chiefly affected by pump power and its lasing rate is almost kept under 10%. The results could be important for the characteristic investigation of double cladding erbium-ytterbium co-doped fiber amplifiers.
%K Fiber amplifiers
%K Double cladding
%K Upper state
%K Population distribution<br>光纤放大器
%K 双包层光纤
%K 上能级
%K 粒子数分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=00AB8D2CE7A843DF&yid=D0E58B75BFD8E51C&vid=27746BCEEE58E9DC&iid=B31275AF3241DB2D&sid=BBA8B1249CDAA6CE&eid=E934BC2766053B28&journal_id=1004-4213&journal_name=光子学报&referenced_num=6&reference_num=10