Improved successive iteration method for simulating laser beam propagation through multipass amplifier systems

摘要

The improved successive iteration flowchart of both forward and backward codes is proposed, in which the effects of fabrication imperfections and obscurations of optical components. stochastic phase fluctuations and irradiance-dependent nonlinear index of refraction of active medium, all are important issues central to the design of high-power multipass laser systems, are considered. Typical numerical results for the four- and two-pass amplifier systems often used in practice are given to illustrate the application of our method. [References: 9]