CrYAG被动调Q腔外三倍频紫外激光器-Core.PDFVIP

29 6 Vol. 29, No. 6 2005 12 LASER TECHNOLOGY Decem ber, 2005 : 10013 06( 2005) 4+ Cr YAGQ 1, 2 1* 1, 2 1, 2 1 贾富强 , 郑 权 , 薛庆华 , 谭成桥 , 钱龙生 ( 1. 130022; 2. , 100039) 4+ : , C r YAG 17W , 336mW 355nm , 2 kH z, 12ns, 12J, 1kW, 2% 4+ : ; 355nm ; Cr YAG; Q; : TN24 . 1 : A 4+ Cr YAG passivelyQ sw itched extracavity thirdharm onic laser 1, 2 1 1, 2 1, 2 1 JIA Fuq iang , ZH EN G Quan , X UE Qing hua , TAN Cheng qiao , QIAN L ong sheng ( 1. Changchun Institute of Optics, F ineM echan ics and Physics, the Ch inese Academ y of Sciences, Changchun 130022, Ch ina; 2. G raduate School, the Chinese Academy of Sciences, Beijing 100039, Ch ina) Abstract: The factors attributed to the efficiency of the extracavity th irdharm onic generation are analyzied. The m axium output pow er of 355nm UV laser is 330mW w ith the incident pumped pow er 17W after optmi izing the sm all singal transm ittance of 4+ the C r YAG, the transm ittance of the outpu t coupler at 1064nm, the focal length of the focus ing lens, the nonlinear crystal and aligning the optical elem ents reasonably. The repetition rates, pusle w idth, single pu lse energy of the pulsed 355nm laser is 2 kH z, 12ns, 12J respectively. The overall light to light efficiency is 2% . 4+ K ey words: lasers; 355nm ultraviolet laser; Cr YAG; passively Q sw itched; extracavity th irdharmon ic