使用可调谐LD激光作探针测量泛频HF化学激光器小信号增益  

Small signal gain coefficient measurement of HF laser using tunable LD laser

作　　者：杨经国[1] 叶茂[1] 杨昌黎 陈小波[1] 靳丽红[1] 刘冬燕 杨卫东 宋影松 金行星 

机构地区：[1]四川大学物理系,四川成都610064 [2]中物院核物理与核化学研究所,成都610003

出　　处：《激光杂志》2000年第1期13-14,共2页Laser Journal

摘　　要：发展了一种使用可调谐ＬＤ激光为探针直接测量ＨＦ激光器小信号增益的方法。以计算机程控步进电机驱动ＬＤ激光器波长扫描，测量进入ＨＦ激光反应室和从反应室出射的探针光功率，并依此计算ＨＦ激光器小信号增益系数。实测ＨＦ激光器小信号增益系数最大值约５×１０－ ３ｃｍ －１ ，增益－ 波长半宽度约１－５ｎｍ ，增益时间半宽度０－５ｓ。对测量方法结果进行了讨论。A new kind of method for measuring the small signal gain coefficient of HF laser is developed.A LD tunable laser tuned by rotating grating under computer controlling is used as the measuring probe in the system.The measuring result showed that,the maximum small gain coefficient is 5×10 -3 cm -1 ,the gain wavelength half width is about 1.5nm,the gain time half width is about 0.5s and the tunable wavelength range of LD is 1319-1323nm.

关 键 词：化学激光器 小信号增益 可调谐LD激光器 探针 

分 类 号：TN248.5[电子电信—物理电子学]