中国激光, 2009, 36 (7): 1798, 网络出版: 2009-07-16
全固体腔内倍频Nd∶YAG/SrWO4/KTP拉曼激光器
All Solid State Intracavity Frequency-Doubled Nd∶YAG/SrWO4/KTP Raman Laser
激光器 全固态激光器 拉曼激光器 腔内倍频 SrWO4晶体 主动调Q lasers all solid state lasers Raman lasers intracavity frequency-doubling SrWO4 crystal active Q-switching
摘要
报道了以KTP晶体作为倍频介质, 以Nd∶YAG晶体作为激活介质, 以SrWO4晶体作为拉曼介质的折叠腔型主动调Q腔内倍频拉曼激光器的输出特性, 给出了输出黄光平均功率、脉冲能量、脉冲宽度随激光二极管(LD)抽运功率及脉冲重复率的变化关系。在输入抽运功率为12.6 W, 脉冲重复率为20 kHz时, 获得了1.4 W的590 nm激光输出, 从LD到黄光的转换效率为11.1%。在输入抽运功率为12.6 W, 脉冲重复率为10 kHz时, 单脉冲能量为122 μJ, 脉冲宽度为4.0 ns, 相应的脉冲峰值功率为30.5 kW。
Abstract
We present the characteristics of a folded-cavity actively Q-switched intracavity frequency-doubled Raman laser in which a KTP crystal is used as the frequency-doubling material, an Nd∶YAG crystal is used as the gain medium and an SrWO4 crystal as the Raman medium. The dependences of the average output power, the pulse energy and width on the pulse repetition rate and incident LD pump power are given. When the incident pump power is 12.6 W and the repetition rate is 20 kHz, the average output power is 1.4 W, and the corresponding conversion efficiency from the diode laser to yellow laser is 11.1%. When the incident pump power is 12.6 W and the repetition rate is 10 kHz, the pulse energy is 122 μJ, the pulse width is 4.0 ns, and the corresponding peak power is 30.5 kW.
张行愚, 王青圃, 常军, 李平, 王浩, 李述涛, 丛振华, 陈晓寒, 刘兆军, 范书振, 张琛, 于浩海, 张怀金. 全固体腔内倍频Nd∶YAG/SrWO4/KTP拉曼激光器[J]. 中国激光, 2009, 36(7): 1798. Zhang Xingyu, Wang Qingpu, Chang Jun, Li Ping, Wang Hao, Li Shutao, Cong Zhenhua, Chen Xiaohan, Liu Zhaojun, Fan Shuzhen, Zhang Chen, Yu Haohai, Zhang Huaijin. All Solid State Intracavity Frequency-Doubled Nd∶YAG/SrWO4/KTP Raman Laser[J]. Chinese Journal of Lasers, 2009, 36(7): 1798.
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