宽带碲基掺铒光纤放大器掺杂特性的理论研究  

Theoretical studies on the doped concentration of broadband erbium-doped tellurite-based optical fiber amplifier

作　　者：周亚训[1] 陈芬[1] 聂秋华[1] 徐铁峰[1] 周宇[1] 

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《量子电子学报》2005年第2期261-266,共6页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金(60272034)浙江省自然科学基金(M603019)浙江省教育厅(20030491)

摘　　要：对WDM系统中宽带碲基掺铒光纤放大器(EDTFA)多信道增益谱特性的研究表明,在给定泵浦方式、泵浦功率和光纤长度的工作条件下,碲基掺铒光纤中铒掺杂浓度对EDTFA各信道信号增益的影响并不相同,相比于长波长信道,短波长信道的信号增益随着光纤中铒掺杂浓度的提高更易趋于饱和及快速衰减状态,同时信号增益谱向长波长方向萎缩。The characterization of the multi-channel gain spectrum for erbium-doped tellurite-based fiber amplifier(EDTFA) in WDM system is presented theoretically. The numerical simulation results show that the effect of erbium-doped concentration on each channel signal gain is different when the pumping configuration, pumping power and fiber length are given. With the increasing erbium-doped concentration in tellurite-bascd fiber, the signal gain of shorter wavelength channels easily tends to saturate and attenuates quickly compared to that of the longer wavelength channels, also the multi-channel signal gain spectrum shrinks to L band.

关 键 词：光纤通信 碲基掺铒光纤放大器 掺杂浓度 掺杂分布 增益谱 

分 类 号：TN253[电子电信—物理电子学]