提出了一种基于单片集成放大反馈激光器在光反馈的条件下产生窄线宽激光和窄线宽微波信号的方法。在不同的注入电流下，放大反馈激光器可以实现稳定的单模和双模激射。单模激射下，器件的激射波长为1546.6 nm,边摸抑制比可达54.2 dB，线宽为9.59 MHz。 双模激射下，模式间距为0.3 nm， 对应拍频频率为37.6 GHz，拍频线宽为4.2 MHz。通过引入一个双环光纤外腔，可以将放大反馈激光器输出的光信号反馈回激光器，提高整个复合腔的光子寿命，从而压缩光信号的线宽。在合适的反馈强度下，单模工作时光信号的线宽从9.95 MHz减小到 2.6 kHz。双模工作时拍频信号的线宽从4.2 MHz减小到 1.6 kHz，均减小三个数量级以上。

The master laser of an injection-seeded laser for Doppler wind lidar is frequency stabilized to a Fabry-Perot (FP) cavity using Pound-Drever-Hall technique. The FP cavity is specially designed to gain high temperature stability with Zerodur cavity and spacer. A computer based controller is used to sample and process the error signal. After the master laser is locked, the relative frequency drift is +-25 kHz in 1 s, and +-5 kHz in 1 h, which can satisfy the need of Doppler wind lidar.