High-Power Continuous-Wave Diode-End-Pumped Intracavity Frequency Doubled Nd:YVO4 Laser at 671nm with a Compact Three-Element Cavity
ZHOU Rui1, DING Xin1, WEN Wu-Qi1, CAI Zhi-Qiang1, WANG Peng1, YAO Jian-Quan1
1College of Precision Instrument and Optoelectronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072
2Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072
3Key Laboratory of Optoelectronic Information and Technical Science (Ministry of Education), Tianjin University, Tianjin 300072
High-Power Continuous-Wave Diode-End-Pumped Intracavity Frequency Doubled Nd:YVO4 Laser at 671nm with a Compact Three-Element Cavity
1College of Precision Instrument and Optoelectronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072
2Cooperated Institute of Nankai University and Tianjin University, Tianjin 300072
3Key Laboratory of Optoelectronic Information and Technical Science (Ministry of Education), Tianjin University, Tianjin 300072
Abstract： We report a high-power high-efficient continuous-wave (cw) diode-end-pumped Nd:YVO4 1342-nm laser with a short plane-parallel cavity and an efficient cw intracavity frequency-doubled red laser at 671nm with a compact three-element cavity. At incident pump power of 20.6W, a maximum output power of 7W at 1342nm is obtained with a slope efficiency of 37.3%. By inserting a type-I critical phase-matched LBO crystal as intracavity frequency-doubler, a cw red output as much as 2.85-W is achieved with an incident pump power of 16.9W, inducing an optical-to-optical conversion efficiency of 16.9%. To the best of our knowledge, this is the highest output of diode-pumped solid-state Nd:YVO4 red laser. During half an hour, the red output is very stable, and the instability of output power is less than 1%.
2006, Vol. 23 
