双光束光纤激光器相干合成仿真及实验研究

Simulation and experimental study on coherent combination of dual beam fiber laser

为了研究光纤激光器相干合成,采用光纤激光的相干合成数学模型仿真了双光束光纤激光相干合成的方法,模拟仿真了各类因素条件下高斯光束相干合成的功率分布,分析了不同参量条件下对合成效果的影响,并针对部分仿真结果进行了实验研究。结果表明,双光纤激光空间距离为0mm,光束夹角为0°,偏振方向完全一致时,则相干合成效果最好。

In order to study the coherent combination of fiber lasers,coherent combination method of dual-beam fiber laser was simulated by means of the mathematical model of coherent combination of fiber laser,the power distribution of the combined Gaussian beam was studied under different conditions,the effect of different parameters on the coherent combination was analyzed.After simulation and experimental verification,the results show that the best effect of coherent combination can be obtained when the space distance is 0mm,the beam angle is 0° and the polarization is identical.