激光与光电子学进展, 2016, 53 (9): 091401, 网络出版: 2016-09-14
抗失谐高光轴稳定度激光器
Anti-Detuning Laser with High Optical Axis Stability
摘要
采用双直角棱镜(DRP)腔,利用直角棱镜(RP)的自对准特性,使激光器系统对冲击、振动及温度波动保持不灵敏性。当激光器重复频率为20 Hz时,输出能量为60 mJ,脉冲宽度为11 ns,经过10倍扩束后发散角为0.11 mrad,30 s内光轴漂移量小于5 μrad。DRP腔能够有效改善激光器光轴的稳定度。采用偏振耦合输出时,波片参数和RP材料决定耦合输出率。根据理论研究及光机电一体化设计,成功研制出高光轴稳定度激光器。该研究对DRP激光谐振腔的参数设计和高光轴稳定度激光器的工程化应用具有一定指导意义。
Abstract
The use of the double-rectangular-prism (DRP) cavity and the self-aligned feature of the rectangular prism (RP) make laser insensitive to shock, vibration and temperature fluctuations. When the laser repetition rate is 20 Hz, the output energy is 60 mJ, the pulse width is 11 ns, the divergence angle after ten times of beams expansion is 0.11 mrad, and the optical axis drift is less than 5 μrad in 30 s. The DRP cavity can effectively enhance the stability of laser optical axis. With a polarization coupling output, the coupling output rate is determined by the wave plate parameter and the RP material. Based on the theoretical study and the electromechanical integration design, a laser with high optical axis stability is successfully developed. The study has certain guiding significance for both the parameter design of DRP cavity and the engineering application of lasers with high optical axis stability.
罗旭, 王鹏飞, 李久喜, 侯天禹, 陈斌. 抗失谐高光轴稳定度激光器[J]. 激光与光电子学进展, 2016, 53(9): 091401. Luo Xu, Wang Pengfei, Li Jiuxi, Hou Tianyu, Chen Bin. Anti-Detuning Laser with High Optical Axis Stability[J]. Laser & Optoelectronics Progress, 2016, 53(9): 091401.