研发了一种多频时分复用锥形激光放大控制系统。通过控制种子激光的输出频率和工作时序, 此系统可以实现高隔离度单频、比例可调双频、复合多频调制三种不同模式的激光放大。实验研究了 该控制系统的光学特性,结果表明输出线偏振激光束间的消光比达30 dB, 不同工作模式的切换时间为100 ns。 该系统可提高激光器的利用效率,适用于原子干涉精密测量物理及原子干涉仪应用技术等对激光 输出功率、集成度要求较高的领域。

A multi-frequency time-division multiplexing tapered laser amplification control system is developed. By controlling the output frequency and working time sequence of seed laser, the system can realize laser amplification in three different modes including high isolation single frequency, proportion adjustable dual-frequencies, and composite multi-frequency modulation. Optical characteristics of the control system are investigated experimentally. Results show that extinction ratio between the output linear polarization laser beam is 30 dB, and the switching time between different working modes is 100 ns. The proposed system can improve the utilization efficiency of lasers, which is suitable for the fields with higher requirements for output power and integration of laser, such as atom interferometer based precision measurement physics and atom interferometer application technology.