9 December 2014 40W high beam quality 532nm green laser with LBO intracavity-frequecy-doubling
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Abstract
A high-power high-beam-quality 1064nm Nd:YAG rod laser and SHG by intracavity-frequency-doubling are reported. With two common side-pumped Nd:YAG rod modules in the short cavity, we achieved an 78.5W near diffraction-limited pulsed wave 1064nm laser(M2=1.5) with pulse frequency 30kHz, pulse width 94ns and a good power stability of ±1% for over two hours. Finally, a 40W pulsed green laser with pulse width of 92ns in a near diffraction-limited beam (M2=1.45) is generated using an LBO crystal as the frequency doubler in the cavity.
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Xuesheng Liu, Jing Li, Youqiang Liu, Zhiyong Wang, "40W high beam quality 532nm green laser with LBO intracavity-frequecy-doubling", Proc. SPIE 9294, International Symposium on Optoelectronic Technology and Application 2014: Development and Application of High Power Lasers, 92940V (9 December 2014); doi: 10.1117/12.2074205; https://doi.org/10.1117/12.2074205
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