%0 Journal Article
%T A Consideration to Structure Parameter Design for Tellurite-based Erbium-doped Fiber applied in Broad-band Amplifiers<br>宽带放大器用碲基掺铒光纤结构参量的设计考虑
%A Zhou Yaxun
%A Chen Fen
%A Xu Tiefeng
%A Nie Qiuhua
%A <br>周亚训
%A 陈芬
%A 徐铁峰
%A 聂秋华
%J 光子学报
%D 2006
%I 
%X Based on the fiber waveguiding theory and hormgeneously broadened four energy-level model,the designing considerations of the fiber structure parameters-fiber core radius and relative index difference of tellurite-based erbium-doped fiber with step-type index distribution,which is applied in broad-band amplifiers,are presented theoretically.It is shown that the tellurite-based erbium-doped fiber with bigger relative index difference is needed to form fiber amplifier in order to get larger signal gain under single-mode conditions.While,for the same relative index difference,the bigger the fiber core radius,the larger the signal gain when in the state of high pump power,low signal input or shorter than the best fiber length.On the contrary,the smaller fiber core radius is needed.The above results will provide theoretical significance for the fabrication of new type broad-band tellurite-based erbium-doped fiber.
%K Fiber communication
%K EDTF
%K Relative index difference
%K Fiber core radius
%K Signal gain<br>光纤通信
%K 碲基掺铒光纤
%K 相对折射率差
%K 纤芯半径
%K 信号增益
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=2D1BE17893E81DF3&yid=37904DC365DD7266&vid=6209D9E8050195F5&iid=DF92D298D3FF1E6E&sid=11924CB7A7AEB526&eid=9E5DBB98644FDC52&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=9