High electrical-to-green efficiency high stability intracavity-frequency-doubled Nd:YAG-LBO QCW 532 nm laser with a straight cavity

✍ Scribed by Sh.B. Zhang; Q.J. Cui; B. Xiong; L. Guo; W. Hou; X.C. Lin; J.M. Li

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 107 KB
• Volume: 7
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.201010050

✦ Synopsis

An electrical-to-green efficiency of more than 10% was demonstrated by intracavity-frequency-doubling a Q-switched diode-side-pumped Nd:YAG laser with a type II lithium triborate (LBO) crystal in a straight plano-concave cavity. An average power of 69.2 W at 532 nm was generated when electrical input power was 666 W. The corresponding electrical-to-green conversion efficiency is 10.4%. To the best of our knowledge, this is the highest electrical-to-green efficiency of second harmonic generation laser systems with sidepumped laser modules, ever reported. At about 66 W of green output power, the power fluctuation over 4 hours was better than ±0.86%.