高稳定及免调试“猫眼”谐振腔He-Ne激光器的研究  

Ultra stable and adjustment-free "cat's eye" cavity He-Ne laser

作　　者：许志广[1] 张书练[1] 杜文华[1] 李岩[1] 朱钧[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《激光技术》2006年第2期133-135,167,共4页Laser Technology

基　　金：国家自然科学基金资助项目(5012750160178010)

摘　　要：提高谐振腔的稳定性一直是激光技术的一个重大问题。将“猫眼”逆向器作为反射镜,组成“猫眼”谐振腔可提高激光谐振腔的稳定性。以功率稳定性为参考指标,做了一系列对比实验来对比“猫眼”谐振腔He-Ne激光器和现有He-Ne激光器在失调特性、温度漂移方面的性能。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和凹凹谐振腔激光器。进行了免调节“猫眼”谐振腔He-Ne激光器的实验,“猫眼”谐振腔He-Ne激光器的功率稳定性达到了以前各种构造的He-Ne激光器无法达到的高水平。Laser cavity stability is a conventional and concerning subject from the birth of laser. With a ＂cat＇s eye＂ reflector as the reflecting mirror,the problems of laser adjustment and power stability can be solved. Comprehensive experiments are carried out in a half-external cavity He-Ne laser and the ＂cat＇s eye＂ reflector cavity, plane-concave mirror cavity and concave-concave mirror cavity. The results show that the use of the half-external ＂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 He-Ne laser is finally realized,which exhibits remarkable advantages than the current He-Ne lasers.

关 键 词：激光器 “猫眼”谐振腔 “猫眼”逆向器 免调激光器 激光谐振腔 

分 类 号：TN248.2[电子电信—物理电子学] TN243