强激光与粒子束, 2010, 22 (7): 1495, 网络出版: 2010-09-15   

折叠式角锥棱镜谐振腔的偏振特性理论与实验研究

Theoretical and experimental study on polarization characteristics of corner-cube folded resonator
作者单位
中国工程物理研究院 应用电子学研究所, 四川 绵阳 621900
摘要
建立了角锥棱镜的偏振模型, 分析了角锥棱镜对入射线偏振光的偏振态的影响, 分析表明角锥棱镜的单个入射区域存在特殊的偏振方向, 该方向的线偏振光被角锥棱镜反射后仍然是线偏振光。利用角锥棱镜的该特性设计了腔内存在线偏振光振荡的角锥棱镜激光谐振腔, 能够使用电光开关调Q, 在振动环境中具有较好的抗失调稳定性。研制了激光器样机并进行了实验, 在重复频率为10 Hz时, 输出激光单脉冲能量大于300 mJ, 光束质量因子β值在2左右, 实验结果也表明角锥棱镜的棱和顶点并不影响输出激光的光束质量。
Abstract
Jones matrix of cube corner prism is deduced by means of ray tracing, and polarization model of cube corner prism is founded. The influence on polarization of incident polarized light by cube corner prism is analyzed. It is found that there exists special polarization azimuth at an incidence zone of cube corner prism, at which the incident linearly polarized light is still linearly polarized after being reflected by cube corner prism. A laser resonator with linearly polarized light is designed using this characteristic, thus the electric-optical Q-switch can be used in it. The beam quality of output laser is unaffected by the vertex and edge of cube corner prism. A laser developed based on the resonator can output energy above 300 mJ at 10 Hz, and the beam quality factor is about 2.

李建民, 叶一东, 廖原, 易亨瑜, 苏毅. 折叠式角锥棱镜谐振腔的偏振特性理论与实验研究[J]. 强激光与粒子束, 2010, 22(7): 1495. Li Jianmin, Ye Yidong, Liao Yuan, Yi Hengyu, Su Yi. Theoretical and experimental study on polarization characteristics of corner-cube folded resonator[J]. High Power Laser and Particle Beams, 2010, 22(7): 1495.

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