约束放电激励型高功率CO_2激光器折叠腔研究  

A Folded Resonator for Transversely Excited CO2 Lasers of Confined Discharge Type

作　　者：李晓平[1] 周风晴 卢宏[1] 陈清明[1] 

机构地区：[1]华中理工大学激光技术国家重点实验室

出　　处：《华中理工大学学报》1995年第8期60-64,共5页Journal of Huazhong University of Science and Technology

基　　金：国家自然科学基金

摘　　要：叙述了一种用于约束放电激励型高功率ＣＯ＿２激光器的七折谐振腔，讨论了腔的不同参数对输出功率影响、分析了模式特性，选择了合适的腔参数。应用该腔的激光器，其基模状态下，稳定输出功率为１．０９ｋＷ、光束发散角０．５ｍｒａｄ（全角），十分接近其衍射极限，其电光转换效率为１３．４％。An optical resonator for high power CO2 lasers excited by confined discharge is de-scribed.In comparison with the conventional DC excited laser,the confined discharge excit-ed laser has higher stability, injected power density and discharge excitation efficiency.Theinfluence of the parameters on the power output is discussed,the mode characteristics areanalyzed and appropriate parameters given. It has been found that in the basic mode the sta-ble power output of TEM_(00) is 1.09 kW,the divergence angle is 0.5 m rad(whole angle),which is very close to the diffraction limit,and the electro-optic conversion efficiency is13.4%, As a transversc laser,the device is of low gas consumption and low cost.

关 键 词：折叠腔 光束质量 二氧化碳激光器 约束放电激励 

分 类 号：TN248.22[电子电信—物理电子学]