固体激光热致退偏效应的一种补偿方法  

Compensation of depolarization loss in solid-state lasers

作　　者：王德良[1] 赵刚[1] 路英宾[1] 高剑波[1] 陈德章[1] 刘韵[1] 卿光弼[1] 古鸿仁[1] 

机构地区：[1]西南技术物理研究所,成都610041

出　　处：《激光技术》2008年第6期561-562,571,共3页Laser Technology

摘　　要：为了消除热致退偏对激光输出的影响,分析了重频固体激光器中热致退偏产生的原因,采用了一种新型的、能有效补偿腔内热致退偏效应的腔型。由结果可知,重复频率从20Hz增大到50Hz时,输出激光光斑无明显变化,无畸变,激光输出能量未降低;在50Hz时注入9.6 J,其动态输出111.24m J的1064nm激光,电光效率为1.16%,输出稳定度达±1.85%。结果表明,该腔型对热致退偏有很好的补偿作用。The depolarization loss induced by heat generated in solid-state lasers was described. Then a new oscillator to compensate depolarization loss was introduced to eliminate influence on the laser output because of the depolarization. No evident change of laser shape or energy per pulse was observed along with changing repetition frequency from 20Hz to 50Hz. At 50Hz with 9.6J injection electrical energy, 111.24mJ@ 1064nm dynamic output was obtained, the electric-optic efficiency reached 1.16% with stabilization of ± 1.85%. Good compensation can be seen evidently with this new configure.

关 键 词：激光器 退偏补偿 热效应 ND:YAG激光器 

分 类 号：TN248.1[电子电信—物理电子学]