Second-harmonic generation of mode-locked Nd:YAG and Nd:YLF lasers using LiB3O5

Murray K. Reed; Jacek K. Tyminski; William K. Bischel

doi:10.1117/12.43606

1 July 1991 Second-harmonic generation of mode-locked Nd:YAG and Nd:YLF lasers using LiB₃O₅

Murray K. Reed, Jacek K. Tyminski, William K. Bischel

Proceedings Volume 1410, Solid State Lasers II; (1991) https://doi.org/10.1117/12.43606
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

Acousto-optically mode-locked cw Nd:YAG and Nd:YLF lasers have been efficiently frequency doubled with noncritically phase-matched lithium triborate. LiB₃O₅ crystals from 6 mm to 15 mm in length were obtained from Castech, People's Republic of China. These were polished and coated for antireflection at both 1064 nm and 532 nm by Coherent Components Group, Auburn, Calif. The coating has a damage threshold in excess of 1 GW/cm² for mode-locked pulses. More than 11 W of average power at 532 nm has been generated by single pass conversion for a 25 W input at 1064 nm, a conversion efficiency of greater than 45%. Second harmonic generation dependence on laser power and focusing, and on crystal length and temperature have been measured and modeled. Stable longterm operation and applications for high power modelocked 532 nm laser pulses are discussed.

Citation Download Citation

Murray K. Reed, Jacek K. Tyminski, and William K. Bischel "Second-harmonic generation of mode-locked Nd:YAG and Nd:YLF lasers using LiB₃O₅", Proc. SPIE 1410, Solid State Lasers II, (1 July 1991); https://doi.org/10.1117/12.43606

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