摘要
对相移分布反馈掺Yb3+ 光纤激光器进行了理论分析 ,发现当相移为π时 ,增益阈值最小 ,相移越远离π ,增益阈值越大 ,信号波长越偏离布拉格波长 ;随着光纤光栅耦合系数的增加 ,激光器的增益阈值越小 ,输出功率越大 ;相移分布反馈光纤激光器的正向和反向输出特性与光纤光栅的相移点的位置有关。
By using the transmission matrix to analysis Yb 3+ doped phase shifted DFB fiber lasers, it is found that with the deviation from π of the phase shift magnitude, the signal wavelength would more deviate from Bragg wavelength and the gain threshold would be higher; with the increasing of the coupling coefficient, the gain threshold would decrease and the output power would increase, the directional output characteristics is decided by the location of the phase shift.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2002年第6期709-712,共4页
Acta Optica Sinica
基金
国家 8 6 3 4 16高技术资助课题
