放电管温度效应与He-Ca^+复合激光功率输出分析  

Analysis of radial temperature distribution in the Ca^+ recombination laser and the output power restriction

作　　者：马涛[1] 

机构地区：[1]浙江工商大学信电学院,浙江杭州310018

出　　处：《量子电子学报》2009年第3期288-292,共5页Chinese Journal of Quantum Electronics

基　　金：浙江省自然科学基金(M603134;Y1080264)资助项目

摘　　要：为使输出波长为373.7/370.6 nm的Ca^+复合激光能达到实际应用的水平,对Ca^+复合激光放电管温度场进行了分析,通过求解热流耗散泊松方程,获得了Ca^+复合激光放电管气体温度场径向分布的解析表达式,明确了温度分布与输入电功率及缓冲气体热传导系数之间的关系,分析了放电管温度场分布与输出功率的关系,指出径向温度分布不均匀是导致输出功率受限的主要原因之一,其结果与实验一致,为该类激光器的实用化研究提供了理论分析结论。The longitudinal discharge-excited Ca＋ recombination laser operating at 373.7 nm/370.6 nm was studied for the practical purpose. A simple model of temperature field was presented for the Ca＋ recombination laser discharge tube. An analytical expression of the radial temperature distribution in the tube was given. The relation among radial temperature distribution, output power restriction and thermal conductivity of the buffer gas was described. Good agreement exists between the calculated and measured results. This physical analysis can be applied to design Ca＋ recombination laser.

关 键 词：激光物理 径向温度分布 数值分析 复合激光 

分 类 号：TN248[电子电信—物理电子学]