A new method to study laser propagation in inhomogeneous medium
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摘要: 为了解决非均匀介质中的光传输问题,利用光学相位共轭波的时间反演特性,实现了对克斯林衍射积分公式的改进.并通过改进后的计算方法对均匀及非均匀介质中的光传输进行了数值模拟.模拟结果表明,该方法能够实现计算非均匀介质中的衍射场的近场分布的计算.这一结果对高功率激光系统中的传输模拟和参数优化等问题是有帮助的.Abstract: In order to study laser propagation in inhomogeneous medium,Collins formula was improved by using time inversion characteristic of optic phase conjugation wave.Based on the new method,beam transmission in medium was calculated.It was proved that the new method was correct and effective in dealing with near field calculation and it was helpful for simulation and parameter optimization of beam transmission.
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