Abstract
A 50.2W high pulse energy green laser system at 532 nm was demonstrated by extra-cavity second-harmonic generation (SHG). The fundamental laser was based on laser diode (LD) side-pumped MOPA Q-switched technology, producing 79W of average power at the repetition rate of 500 Hz, while the pulse width was 6 ns. Type-II angle phasematched KTiOPO4 (KTP) crystal was used as the nonlinear crystal. The 50.2W average power of 532 nm laser was obtained with the divergence angle less than 0.6 mrad and the corresponding peak power of 16.7MW. The optical frequency conversion efficiency from fundamental to green laser was up to 63.5%. The measured output power fluctuation was less than 0.38% in one hour operation.
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Bai, Z., Chen, M., Jiang, J. et al. 50.2W high stability and high compact all-solid-state green laser with extra-cavity frequency-doubling at 500 Hz. OPT REV 20, 303–307 (2013). https://doi.org/10.1007/s10043-013-0055-9
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DOI: https://doi.org/10.1007/s10043-013-0055-9