基于Zernike多项式大气湍流条件下光纤耦合效率的数值分析

Analysis on Values of Optical Fiber Coupling Efficiency Based on Zernike Polynomial in Atmospheric Turbulence

目前,对光纤耦合效率的数值模拟方面的研究较少,并且主要是运用功率谱反演法即傅里叶变换法进行数值模拟,介绍了大气湍流对激光光束传播的影响,然后采用Zernike多项式法对光纤耦合效率进行模拟研究,这种方法对于后续的波前重构和自适应光学系统闭环控制而言,物理概念更清晰,可以选择特定的光学像差进行波前的重构和控制,计算方法较简单。

The research on aspects of value simulation of optical fiber coupling efficiency is less currently, and the inverse method of power spectrum such as Fourier transform method is used to perform value simulation. The influence of atmospheric turbulence on laser beam propagation is described. Then Zemike polynomial method is used to simulate and research on optical fiber coupling efficiency. For subsequent wave front reconstruction and adaptive optics system closed-loop control, the method has clearer physical concepts. So special optical aberrations can be selected to perform wave front reconstruction and control. And calculation method is simple relatively.