新型电光调Q脉冲固体激光器的研究  

Novel Style Electro-Optical Q-switched Pulsed Laser

作　　者：张红波[1] 孙峰[1] 叶艾[1] 刘在洲[1] 

机构地区：[1]华中光电技术研究所,武汉430073

出　　处：《光学与光电技术》2005年第6期19-21,共3页Optics & Optoelectronic Technology

摘　　要：针对传统的电光调Q脉冲固体激光器在高重复频率运转时易受热退偏振效应的影响,提出了一种利用方解石的自然双折射特性,将其作为起偏元件输出非线偏振激光脉冲的新型调Q方式。实验结果表明,采用这种调Q方案后,在20 Hz的重复频率运转时,激光输出能量较之1 Hz时平均降幅仅为2.3%,激光输出的稳定性得到较大的提高。As traditional electro-optical Q-switched pulsed laser is easily affected by thermo-depolarization effect with high repetition frequency, a novel Q-switched method is presented. The calcite has character of natural double reflection, and can be used as polarizing element to get non-linear-polarization pulsed laser. It indicates from the experiment results that the output energy of laser at 20 Hz was only averagely lower 2.3% than at 1Hz, and the stability of laser has been highly enhanced when running with high repetition frequency after using this novel Q-switched method.

关 键 词：热退偏振 方解石 自然双折射 非线偏振 

分 类 号：TN253[电子电信—物理电子学]