论文部分内容阅读
基于激光脉冲在增益介质中的放大过程建立了三维放大模拟计算模型,该模型将自由空间传输与光线追迹放大相结合。在增益介质内抽运储能分布具有三维特点、离轴多程放大结构等复杂情况下,该模型能真实模拟放大后输出光束的近场分布。利用该三维放大模型针对一个12程激光二极管抽运钕玻璃放大系统进行模拟计算,计算结果准确地反映了输出光束近场分布。在此模拟结果的基础上能进一步优化多程放大光路。
Based on the amplification process of the laser pulse in the gain medium, a three-dimensional simulation model is established, which combines the free-space transmission and the optical trace magnification. The three-dimensional characteristics of the stored energy distribution in the pump gain medium, the multi-axial off-axis amplification structure and other complex cases, the model can truly simulate the amplified output beam near-field distribution. The three-dimensional amplification model is used to simulate a 12-way laser diode pumping neodymium glass amplification system. The calculation results accurately reflect the near-field distribution of the output beam. Based on the simulation results, the multi-path optical path can be further optimized.