双镜环行行波激光器  

Solid-State Round Traveling-Wave Laser with Two Mirrors

作　　者：许闱帷[1] 霍玉晶[1] 何淑芳[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《中国激光》2004年第12期1417-1420,共4页Chinese Journal of Lasers

基　　金：北京市自然科学基金(4822011)清华大学基础研究基金(200110001)资助项目

摘　　要：提出了一种全新的固态双镜立体环行行波激光器。此类激光器的谐振腔仅由两面反射镜组成,其中一面反射镜直接镀制在激光介质上,激光束在腔内沿立体环形光路行进,形成闭合谐振回路。利用Nd:YAG作为工作介质和双凹稳定谐振腔型,实现了用激光二极管(LD)抽运的多种双镜环行行波激光的稳定运转。实验结果表明此类激光器具有结构简单、调整容易、稳定性好的优点,并可望通过多点纵向抽运实现热效应低的高效率、高光束质量、大功率全固态激光器,单向输出的基频光和/或倍频光的单频激光器,以及高重复频率、短腔长的锁模激光器。In this paper a completely new type of solid-state round traveling-wave laser is presented. A Nd: YAG crystal is used as gain medium. Its resonator consists of only two concave mirrors (one of them is directly coated on the laser crystal surface) , between which laser beam travels along a closed 3-dimensional loop. Steady oscillation of many kinds of round traveling-wave lasers has been observed. The laser experiment results indicated that the novel laser has simple structure and stable output. Based on the new structure of the new type of solid-state lasers, high-power high-efficient lasers with high beam quality can be developed by end-pumping at multi-points on the laser crystal. High-efficient single-frequency laser and mode-locked laser with short cavity length can also be developed by means of suitable design.

关 键 词：激光技术 固体激光器 行波 双镜腔 环行 

分 类 号：TN248.1[电子电信—物理电子学]