激光与光电子学进展, 2012, 49 (8): 081405, 网络出版: 2012-06-07
水热法KTP在355 nm紫外激光器中的应用研究
Application of Hydrothermal KTP in LD Side Pumped Nd:YAG Internally Frequency Tripled 355 nm Laser
激光器 水热法KTP 紫外激光器 声光调Q 内腔三倍频 laser hydrothermally grown KTP ultraviolet laser acousto-optic Q-switch intracavity frequency tripling
摘要
使用水热法KTP晶体实现了355 nm紫外激光输出。实验中采用声光调Q技术，选用模体值大的V形谐振腔结构，对激光二极管(LD)侧抽运Nd:YAG模块产生的基波，分别利用水热法KTP晶体二倍频、LBO晶体三倍频，获得了高功率、高光束质量的355 nm紫外激光输出。当抽运功率为93.09 W，重复频率为4.9 kHz时，获得4.133 W的紫外355 nm激光输出，光光转换效率为4.44%。
Abstract
A 355 nm ultraviolet laser with hydrothermal KTP is demonstrated. A high power ultraviolet laser with high beam quality at 355 nm is obtained by internally frequency tripling of a diode side-pumped acousto-optic (AO) Q-switched Nd:YAG laser. Type II phase-matched hydrothermal KTP and LBO crystals are used for the second harmonic generation and the third harmonic generation, severally. Using the V-shaped resonator cavity, under the pump power of 93.09 W, 4.133 W average output power at 355 nm is obtained at 4.9 kHz, corresponding to the pump-to-ultraviolet conversion efficiency of 4.44%.
潘俊, 朱思祁, 陈振强, 阳其国, 王苏娥. 水热法KTP在355 nm紫外激光器中的应用研究[J]. 激光与光电子学进展, 2012, 49(8): 081405. Pan Jun, Zhu Siqi, Chen Zhenqiang, Yang Qiguo, Wang Su′e. Application of Hydrothermal KTP in LD Side Pumped Nd:YAG Internally Frequency Tripled 355 nm Laser[J]. Laser & Optoelectronics Progress, 2012, 49(8): 081405.
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