摘要
提出在光纤放大器中 ,使用光纤布喇格光栅作为泵浦光反射镜 ,所需的双包层光纤可以缩短 ,同时至少保持了与没有光纤布喇格光栅作为反射镜时光纤放大器相同的性能 基于速率及传输方程 ,对使用和不使用光纤布喇格光栅的铒、镱共掺双包层光纤放大器的性能进行了数值模拟 结果表明 ,使用光纤布喇格光栅作为反射镜时光纤放大器可以获得与无光栅时相同的输出功率 ,但仅仅需要后者长度一半的光纤 ,无论是前向泵浦还是后向泵浦 对后向泵浦方式并使用光纤布喇格光栅作为反射镜 ,可获得最高的输出功率及光增益 。
Using fiber Bragg grating (FBG) as reflectors of the pump light, which could be made by using high power femtosecond pulse laser in the inner cladding of the DCF, shorter fiber is needed in optical fiber amplifiers, while maintaining at least the same performance as that without FBG. Based on the rate and propagation equations, numerical analysis of Er∶Yb co-doped double cladding fiber amplifiers with and without FBG has been performed. The results show that amplifiers with FBG can reach the same output powers as those of without gratings, but only half-length of fibers a re needed, either for forward or backward pumping. With FBG for backward pumping, the highest output power can be acquired for all cases, while using shorter fibers.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2004年第3期257-260,共4页
Acta Photonica Sinica
基金
SupportedbykeyprojectoftheNationalNatureScienceFoundationofChina(No.60137010)andDirectorFoundationofStateKeyLaboratoryofTransientOpticsandTechnologyTel:029884842 68
关键词
光纤放大器
双包层光纤
铒、镱共掺
包层泵浦
光纤通信
光纤布喇格光栅
Optical fiber amplifiers
Double-cladding fiber
Erbium-Ytterbium co-doped
Cladding pump
Optical fiber communication
Fiber Bragg grating
