激光光束相干合成技术与激光锁模技术的比较研究

Comparative Study of Laser Beam Coherent Combination Technology and Laser Mode-Locking Technology

本文比较了激光光束相干合成与激光锁模的基本原理,说明了他们本质上的异同。指出两者都是为了实现光束能量(功率)集中的技术手段,激光光束相干合成实现的是空间上的能量(功率)集中,激光锁模实现的是时间上的能量(功率)集中;激光光束相干合成是对横模进行调制,激光锁模是对纵模进行调制。技术上两者都是依靠锁定各分量的相位来达到上述目的,都可以分为主动锁相和被动锁相两种方式。最后分析了两者技术手段互相借鉴的可能性。

This paper compared the basic principles of laser beam coherent combination and laser mode-locking, and explained their similarities and differences in nature. It is pointed out that both are technical means to achieve beam energy concentration. The coherent combination of laser beams achieves spatial energy. Concentrated, laser mode-locking achieves energy concentration over time. The laser beam coherent combination is to modulate the transverse mode, and the laser mode-locking is to modulate the longitudinal mode. Technically, both rely on locking the phase of each component to achieve the above purposes, which can be divided into active phase locking and passive phase locking. It also analyzed the possibility that the two technical means can learn from each other.