基于光线追迹的闪光灯泵浦激光聚光腔的结构优化

J4 ›› 2015, Vol. 32 ›› Issue (6): 663-667.

基于光线追迹的闪光灯泵浦激光聚光腔的结构优化

朱成君郭强易新孙晓军卞进田

1中国科学院安徽光学精密机械研究所，安徽光子器件与材料省级实验室，安徽合肥 230031； 2 中国科学院大学，北京 100049； 3 电子工程学院，安徽合肥 230037

收稿日期:2014-12-26 修回日期:2015-01-12 出版日期:2015-11-28 发布日期:2015-11-05
通讯作者: 郭强（1963 - ），安徽合肥人，研究员，主要从事激光系统集成技术方面的研究。 E-mail:qguo@aiofm.ac.cn
作者简介:朱成君（1989 - ），安徽歙县人，研究生，主要从事固体激光技术方面的研究。E-mail: cjchu5@163.com
基金资助:
电子工程学院脉冲功率激光技术国家重点实验室开放基金项目

Structure optimization of laser cavities pumped by flash lamps based on ray-tracing

ZHU Cheng-jun, GUO Qiang, Yi Xin，SUN Xiao-jun, BIAN Jin-tian

1 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Anhui Provincial Key Laboratory of Photonic Devices and Materials, Hefei 230031, China； 2 University of Chinese Academy of Sciences, Beijing 100049, China; 3 Electronic Engineering Institute, Hefei 230037, China

Received:2014-12-26 Revised:2015-01-12 Published:2015-11-28 Online:2015-11-05

摘要/Abstract

摘要：

聚光腔是灯泵固体激光的重要部件，主要作用是最大限度地将泵浦光能聚集到激光棒上的同时，尽可能使激光棒获得均匀的泵浦。为了实现灯泵固体激光器大能量输出，需考虑优化激光聚光腔，提高其泵浦效率。通过以蒙特卡洛离散方法为核心的光线追迹技术和合理的模型建立，以四灯为例，研究了对确定直径的激光棒，泵浦效率随构成腔体的椭圆长短轴比(a/b)的变化，以及同样的长短轴比下，泵浦效率随泵浦灯直径的变化。得到了在确定直径的激光棒和泵浦灯下，泵浦效率最高的椭圆长短轴比例。此外，研究了对确定直径的激光棒在不同直径泵浦灯的情况下，泵浦均匀性随椭圆长短轴比a/b的变化。

关键词: 固体激光技术, 泵浦效率, 光线追迹, 聚光腔

Abstract:

Laser cavity is indispensable in solid-state laser pumped by flash-lamps,it focuses the pump light on laser rod more efficiently and evenly. To achieve high-energy output, it is necessary to consider optimizing laser cavities and increasing the pumping efficiency . Through the ray tracing technique of Monte Carlo method and establishment of reasonable model, four-lamps cavity is researched in certain diameter of laser rod. The relationships between pumping efficiency and the ratio of elliptic major axis and minor axis (a/b) are obtained. Moreover, the relationships between pumping efficiency and diameter of flash-lamps are obtained in certain a/b. The a/b of supreme pumping efficiency is obtained in certain diameter of laser rod and flash-lamp. In addition, the relationships between pumping uniformity and ratio of elliptic major axis and minor axis (a/b) are gotten on the condition of certain diameter of laser rod and uncertain diameter of flash-lamps.

Key words: solid-state laser techniques, pumping efficiency, ray tracing, laser cavity

中图分类号:

TN248.1

朱成君郭强易新孙晓军卞进田. 基于光线追迹的闪光灯泵浦激光聚光腔的结构优化[J]. J4, 2015, 32(6): 663-667.

ZHU Cheng-jun, GUO Qiang, Yi Xin，SUN Xiao-jun, BIAN Jin-tian. Structure optimization of laser cavities pumped by flash lamps based on ray-tracing[J]. J4, 2015, 32(6): 663-667.