计算模拟方法设计位相元件可将基模高斯光束均匀化,将椭圆波面校正为圆对称波面.本文推导了理论模拟结果和实验参数的关系.计算模拟给出的实验装置较为简单,能量转换效率高.

Using the phase plate calculated and designed by two-discrete FFT with dimeasionless parameters and computer simulation, the fundamental mode Gaussian beam can be converted in to rectangular shape and the elliptical wavefront can change oint circular symmetrical shape. The relation between theoretical simulation and experimental parameters were derived. Results of simulation show that the experimental equipment is simple by using the data obtained in our method and efficiency of energy transform is high.