基于高功率激光输出端相位控制的光纤激光相干合成

Coherent Beam Combination Based on Active Phase Controlling at the High-Power Output Port

利用压电陶瓷相位调制器在高功率光纤激光输出端进行相位控制,实现了两路瓦量级光纤激光相干合成。系统闭环时长曝光图样的条纹可见度为98%,峰值强度是开环情形下的1.87倍。

Two W-level fiber laser beams have been coherently combined by active phase controlling at the highpower output port employing the piezoelectric ceramic transducer phase modulator. The visibility of the longexposure far-field intensity pattern is 98% and the peak intensity is increased by a factor of 1.87 when the system is in close-loop.