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从傅里叶光学的基本理论出发,对多光束耦合的机理进行了理论分析,得出了光栅耦合的数学模型.根据模型用研制的优化软件对耦合器件进行了优化设计,并用特定设计的二元位相光栅作为耦合器件,在参与合成的各激光束之间满足一定的位相关系组态时,可实现将多束入射光相干合成一束能量较大的同轴高斯光束.给出了实验结果及有关的结论
Based on the basic theory of Fourier optics, the mechanism of multi-beam coupling is theoretically analyzed, and the mathematic model of grating coupling is obtained. According to the optimization software developed by the model, the coupling device is optimized and a specially designed binary phase grating is used as the coupling device. When a certain phase relation configuration is satisfied among the laser beams involved in the synthesis, the multi-beam Incident light coherently synthesizes a beam of coherent Gaussian beams of greater energy. The experimental results and the related conclusions are given