研制出光敏偏振保持掺Er3+光纤,通过在这种光纤上紫外写入三个光纤光栅,形成对抽运激光高转化效率的谐振腔.在输出功率为23.617 dBm、工作波长为976 nm的激光抽运下,得到均值功率为9.20 dBm、均值中心波长为1554.554 nm的单波长激光输出.在室温下800 min(约13.3 h)的测量时间内,其输出功率的波动为±0.05 dB,中心工作波长的波动为±0.0015 nm. A photosensitive polarization-maintaining Er3 + -doped fiber was fabricated and a three-fiber laser was fabricated by writing three FBGs on the fiber to form a laser cavity with high conversion efficiency.At the same time, a laser pump with an output of 23.617 dBm and a working wavelength of 976 nm , A single-wavelength laser with a mean power of 9.20 dBm and an average center wavelength of 1554.554 nm was obtained.The output power fluctuated within ± 0.05 dB at a measurement time of 800 min (about 13.3 h) at room temperature, and the center operating wavelength The fluctuation is ± 0.0015 nm.