进行了多路光纤激光相干偏振合成理论和实验研究。基于主动锁相技术实现了4路光纤激光的相位锁定和相干偏振合成输出,合成效率达84.9%,验证了偏振合成向多路多模块发展的可行性,并提出了拓展方案。 The theory and experiment of multi-channel fiber laser coherent polarization synthesis have been carried out. Based on the active phase-locked technique, phase locking and coherent polarization synthesizing output of 4-way fiber laser were realized, and the synthesis efficiency was 84.9%. The feasibility of polarization synthesizing to multi-channel multi-module development was verified.