高重频人眼安全光参变振荡器实验研究  

Experimental study of high-repetition-rate eye-safe optical parametric oscillator

作　　者：金锋[1] 翟刚[1] 李晶[1] 时顺森[1] 马楠[1] 王建华[2] 陈仁[1] 

机构地区：[1]西南技术物理研究所,成都610041 [2]烟台大学光电信息学院,烟台264005

出　　处：《激光技术》2006年第1期20-22,共3页Laser Technology

摘　　要：介绍了连续激光二极管抽运声光Q开关Nd∶YAG激光器抽运的高重复频率1.57μm人眼安全光参变振荡器实验研究结果。采用连续激光二极管三侧面抽运Nd∶YAG模块和QSGSU-6型小型声光Q开关,1.57μm光参变振荡谐振腔置于1.06μm Nd∶YAG激光谐振腔内,非线性晶体为X切割的KTP晶体,利用Ⅱ类非临界相位匹配光参变振荡输出1.57μm波长激光。在重频1kHz^5 kHz时进行了初步实验,在重频3kHz时,获得1.57μm高重复频率激光最大输出功率480mW,最大峰值功率58.8kW,脉宽2.72ns,电光效率达2.6‰。试验结果表明,连续激光二极管抽运声光Q开关内腔光参变振荡器是获得高频人眼安全激光的一种有效途径。A high-repetition-rate CW laser diode pumped acousto-opfically（AO） Q-switched eye-safe intracavity optical parametric oscillator at 1. 57μm with a type-Ⅱ non-critically phase-matched X-cut KTP is experimentally studied. Using a CW laser diode three-side-pumping Nd： YAG module and a QSGSU-6 AO Q-switch ,with a single oscillator 1. 57μm OPO placed inside the resonator of a Q-switched 1.06μm Nd： YAG laser, the maximum power of 480row and the maximum peak power of 58.8kW at 1.57μm are obtained with pulse duration about 2.72ns at 3kHz the opto-electronic efficiency is up to 2.6‰. CW laser diode pumped AO Q-switched intracality optical parametric oscillator is a good chice for high-repetition-rate eye-safe laser.

关 键 词：非线性光学 光学参变振荡器 高重复频率 人眼安全 二极管抽运 

分 类 号：TN248.1[电子电信—物理电子学]