摘要
本文提出一种计算双轴晶体最佳相位匹配参量的较简单的方法。应用这一方法能计算匹配方向，有效非线性系数，离散角和在匹配方向上的失配系数，它对双轴晶体的最佳匹配提供了理论和实践依据，同时该方法也提出了入射光束允许发散角的计算方法。
Asimple method for calculating optimum phase matching parameters for biaxial crystals is presented. With this method we can calculate phase matching direction, effective nonlinear coefficient walk-off angle and mismatching coefficient in certain matching directions. It provides some theoretical and practical guidance for optimum matching of biaxial crystals. The method for calculating the acceptance divergent angle of incident beam is also developed.
