原子干涉仪在精密测量和惯性导航领域都有着重要前景,而高精度的原子干涉仪 对低相位噪声、高输出功率的拉曼激光有迫切需求。设计了基于光学锁相环路的双波长激光同步 注入放大拉曼激光制备方案,实现了大功率拉曼激光的制备,拉曼光注入放大前后的相位噪声均低于－80 dBc@0.01～1 MHz, 输出总功率达到了400 mW, 可满足原子干涉精密测量的需求。

Atom interferometry has important prospect in the precise measurement and inertial navigation fields. The high-precision atom interferometer has an urgent need for Raman lasers with low phase noise and high output power. A dual-wavelength synchronous injection-amplification Raman laser preparation scheme based on optical phase-locked loop is designed, and the preparation of high-power Raman laser is achieved. The phase noises of Raman lasers before and after amplification are both below －80 dBc@0.01～1 MHz, and the total output power reaches 400 mW, which can meet the needs of atom interferometer based precision measurement.