matlab谐振腔的稳区图,激光器谐振腔设计和热稳定性研究

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激光器谐振腔设计和热稳定性研究

Research on designing laser resonant cavity and its thermal stability

16400字 41页

关键词：光学谐振腔 激光 MATLAB 热效应 稳定性 固体激光器

Research on designing laser resonant cavity and its thermal stability

Abstract: Laser, as one of the most significant technological invention in twentieth century, not only widely used in the field of science and technology, but also had a profound impact on people’s daily life and industrial production. The global output value of laser-related industry has exceeded a million billion dollars every year. Optical resonant cavity in which light reflects back and forth can provide energy feedback. As the laser cavity in the work process will produce thermal effects, cavity stability would have been affected. In this article, resonant cavity stability and thermal effect are analyzed and studied deeply.

This paper first summarizes the optical resonant cavity, and then describes the optical resonator type and the basic theory of stability, the theory and knowledge of working medium thermal effects and the hazards of thermal effects etc. In the third chapter, aimed at the frequency doubling and acousto-optic Q-switched laser, mathematical software MATLAB was used, then I write a program to calculate the resonant cavity stability. According to the results of stability, the resonant cavity geometry parameters were got, to ensure that the resonant cavity can work in the stable region. In the end I make a summary of the graduation design and an outlook.

Key words：Optical Resonator Laser MATLAB Thermal Effect Stability Solid State Laser

目录

第一章 绪论1

1.1光学谐振腔的类型1

1.2谐振腔的热效应2

1.2.1谐振腔热效应产生的原因概述3

1.2.2热效应的类型3

1.2.3 热效应的危害4

第二章 光学谐振腔理论5

2.1谐振腔稳定性的基础知识5

2.1.1稳定腔与非稳腔的概念5

2.2共轴球面腔的光线传输矩阵理论5

2.2.1光线传输矩阵[16]6

2.2.2光腔稳定条件10

2.2.3球面腔的分类13

2.3 谐振腔热稳定性基础理论15

2.3.1连续激光器的热效应15

第三章 使用MATLAB进行谐振腔稳定性分析21

3.1谐振腔稳定性矩阵推导22

3.1.1谐振腔内部的近似模型22

3.1.2激光器谐振腔的传输矩阵22

3.2程序编写22

3.2.1程序流程图23

3.2.2程序25

3.3对谐振腔的稳定性分析27

3.3.1 分析f1和f2的变化对谐振腔稳定性的影响27

3.3.2 分析l1和l2的变化对谐振腔稳定性的影响28

3.4平凹镜曲率半径R对稳定性的影响32

3.5光束直径33

第四章 总结和展望34

4.1 总结34

4.2 展望34

致 谢36

参考文献37

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