Stable High Power and High Beam Quality Diode-Side-Pumped Continuous-Wave Intracavity Frequency-Doubled Nd:YAG Laser
CHENG Xian-Kun1,3, ZHOU Yong1,3, CUI Qian-Jin1,3, YANG Feng, BO Yong2, PENG Qin-Jun2, CUI Da-Fu1,2, XU Zu-Yan 1,2
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001902Research Center for Laser Physics and Technique, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 1001903Graduate School of the Chinese Academy of Sciences, Beijing 100190
Stable High Power and High Beam Quality Diode-Side-Pumped Continuous-Wave Intracavity Frequency-Doubled Nd:YAG Laser
CHENG Xian-Kun1,3, ZHOU Yong1,3, CUI Qian-Jin1,3, YANG Feng, BO Yong2, PENG Qin-Jun2, CUI Da-Fu1,2, XU Zu-Yan 1,2
1Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 1001902Research Center for Laser Physics and Technique, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 1001903Graduate School of the Chinese Academy of Sciences, Beijing 100190
We report a stable high power and high beam quality diode-side-pumped cw green laser from intracavity frequency-doubled Nd:YAG laser with KTP. By using a L-shaped concave--convex resonator, designed with two Nd:YAG rods birefringence compensation, a large fundamental mode size in the laser crystal and a tight focus in the nonlinear crystal could be obtained simultaneously. The green laser delivers a maximum 532nm output power of 23.2W. Under 532nm output power of 20.9W, the beam quality factor is measured to be 4.1, and the fluctuation of the output power is less than 1.4% in an hour.
We report a stable high power and high beam quality diode-side-pumped cw green laser from intracavity frequency-doubled Nd:YAG laser with KTP. By using a L-shaped concave--convex resonator, designed with two Nd:YAG rods birefringence compensation, a large fundamental mode size in the laser crystal and a tight focus in the nonlinear crystal could be obtained simultaneously. The green laser delivers a maximum 532nm output power of 23.2W. Under 532nm output power of 20.9W, the beam quality factor is measured to be 4.1, and the fluctuation of the output power is less than 1.4% in an hour.
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2009, Vol. 26 
