中国激光, 2020, 47 (5): 0501001, 网络出版: 2020-05-12   

基于次级拉曼模的固体激光器的数值模拟研究 下载: 904次

Numerical Simulation of Solid-State Lasers Based on Secondary Raman Modes
作者单位
烟台大学光电信息科学技术学院, 山东 烟台 264005
摘要
为了实现除拉曼呼吸模外的次级拉曼模的有效受激拉曼转换,进一步获得更多相干波长激光,在被动调Q内腔式固体拉曼激光器速率方程的基础上,推导了有两束拉曼光输出时的被动调Q内腔式固体拉曼激光器的速率方程,并对方程进行了归一化处理。推导出了两束拉曼光的归一化峰值功率和脉冲能量的表达式。数值模拟观察了各归一化参数对两束拉曼光输出脉冲特性的影响,数值上获得了这些归一化参数的最佳值,以实现次级拉曼模的有效受激拉曼转换。同时,对相关实验参数进行了验证和优化,获得了最佳的实验结果。
Abstract
Herein, to achieve effective stimulated Raman conversion of the secondary Raman mode in addition to the Raman breathing mode and to obtain lasers with more coherent wavelengths, based on the rate equations of passive Q-switched internal cavity solid-state Raman lasers, the rate equations of passive Q-switched internal cavity Raman lasers with two Raman light outputs were derived and the equations were normalized. Moreover, the expressions of the normalized peak power and pulse energy of two Raman beams were derived. Numerical simulation shows the influence of each normalized parameter on output pulse the characteristics of the two Raman beams. The optimum values of these normalized parameters were numerically obtained to achieve efficient stimulated Raman scattering conversion of the secondary Raman mode. Further, the related experimental parameters were simultaneously verified and optimized the best experimental results.

徐杰, 车潇华, 李恒达, 王淑梅, 丁双红. 基于次级拉曼模的固体激光器的数值模拟研究[J]. 中国激光, 2020, 47(5): 0501001. Jie Xu, Xiaohua Che, Hengda Li, Shumei Wang, Shuanghong Ding. Numerical Simulation of Solid-State Lasers Based on Secondary Raman Modes[J]. Chinese Journal of Lasers, 2020, 47(5): 0501001.

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