中国激光, 2005, 32 (12): 1609, 网络出版: 2006-06-01  

猫眼谐振腔在全外腔长氦氖激光器中的应用

Application of Cat′s Eye Resonator in Long Full-External He-Ne Lasers
作者单位
清华大学精密仪器系,北京 100084
摘要
将猫眼逆向器作为反射镜,应用在全外腔长氦氖激光器中组成猫眼谐振腔来提高激光谐振腔的稳定性,并设计了一套检测猫眼逆向器的装置。以功率稳定性为参考指标,做了一系列对比实验来研究猫眼谐振腔氦氖激光器和现有氦氖激光器在失调特性、温度漂移方面的性能差异。结果表明,猫眼谐振腔激光器稳定性显著优于传统平凹谐振腔激光器。
Abstract
Laser cavity stability is a conventional and concerning subject from the birth of laser. With cat′s eye reflector applied in the long full-external He-Ne laser as the reflecting mirror, the new laser can solve the conventional problems of laser adjustment and power stability. The principle of the cat′s eye reflector is described. It is compared with the traditional laser resonator mirrors in stability. The assembling and testing of a cat′s eye reflector are also illuminated. Comprehensive experiments are carried out in the long full-external cavity He-Ne laser, and the cat′s eye cavity is compared with the plane-concave mirror cavity. The results show that the use of the cat′s eye cavity can improve the laser stability and lower the power drift significantly. The adjustment problem is also considered and solved. A stable and adjustment-free long full-external He-Ne laser is finally realized, which exhibits remarkable advantages to current long full-external He-Ne lasers.
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许志广, 张书练, 杜文华, 李岩, 朱钧. 猫眼谐振腔在全外腔长氦氖激光器中的应用[J]. 中国激光, 2005, 32(12): 1609. 许志广, 张书练, 杜文华, 李岩, 朱钧. Application of Cat′s Eye Resonator in Long Full-External He-Ne Lasers[J]. Chinese Journal of Lasers, 2005, 32(12): 1609.

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