光子学报, 2010, 39 (5): 785, 网络出版: 2010-07-05
高重频电光调Q Nd∶YAP红光激光器
High Repetition Electro-optical Q-switched Nd∶YAP Red Laser
激光技术 折叠腔 电光调Q 腔内倍频 Laser technique Folded cavity Electro-optical Q-switching Intracavity frequency-doubling
摘要
研制了一台基于Nd∶YAP晶体线偏振激光输出特性而省略起偏器方式的电光调Q高重频Nd∶YAP红光激光器.通过对Nd∶YAP晶体的热透镜焦距的实验测量，优化设计了三镜折叠腔的各个参量，采用LN晶体电光调Q、KTP晶体Ⅱ类匹配腔内倍频，最终获得670 nm红光输出.在重复频率1 000 Hz、抽运电流75 A时，获得了峰值功率28.3 kW、脉宽76 ns的偏振红光输出，倍频效率为37.1%.
Abstract
The high repetition electro-optical Q-switched red laser is studied based on the polarized characteristic of Nd∶YAP crystal.The parameters of the three-mirror folded are optimized by the thermal focus length of Nd∶YAP crystal.The electro-optical Q-switched of LN crystal and typeⅡnoncritical phase-matching intracavity frequency-doubling of KTP crystal are adapted.Then the output peak power with 28.3 kW,about 76 ns of pulse duration at 670 nm and the frequency doubling efficiency of 37.1% are obtained in the condition of 75 A pump current and the electro-optical Q-switched repetition rate of 1 kHz.
武志超, 凌铭, 王福荣, 梁柱. 高重频电光调Q Nd∶YAP红光激光器[J]. 光子学报, 2010, 39(5): 785. WU Zhi-chao, LING Ming, WANG Fu-rong, LIANG Zhu. High Repetition Electro-optical Q-switched Nd∶YAP Red Laser[J]. ACTA PHOTONICA SINICA, 2010, 39(5): 785.
PDF全文
