Abstract

We present second-harmonic generation characteristics of LiB₃O₅ (LBO) crystal with different phase-matching lengths and comparison with those of β-BaB₂O₄ crystal. A computer program of the numerical interaction method was adopted to make the theoretical calculation of second-harmonic generation conversion efficiencies of LBO with different phase-matching lengths and power densities of the fundamental beam of a Nd:YAG laser, and the calculated result was compared with the experimental one. It is seen from the calculated and experimental results that for certain power densities of the fundamental laser beam, so long as the length of the LBO crystal is selected appropriately, a high energy conversion efficiency could be obtained. For example, an optimal external energy conversion efficiency of LBO crystal of more than 70% has been attained for several 100-MW/cm² fundamental laser beams. Experiments also showed that the crystal could be used under high power densities without any damage to the surface and the interior.

© 1991 Optical Society of America

Phase-matched second-harmonic generation and growth of a LiB₃O₅ crystal

T. Ukachi, R. J. Lane, W. R. Bosenberg, and C. L. Tang
J. Opt. Soc. Am. B 9(7) 1128-1133 (1992)

6.5-W, 532-nm radiation by cw resonant external-cavity second-harmonic generation of an 18-W Nd:YAG laser in LiB₃O₅

S. T. Yang, C. C. Pohalski, E. K. Gustafson, R. L. Byer, R. S. Feigelson, R. J. Raymakers, and R. K. Route
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Blue parametric generation from temperature-tuned LiB₃O₅

Frank Hanson and David Dick
Opt. Lett. 16(4) 205-207 (1991)

Highly efficient ultraviolet generation at 355 nm in LiB₃O₅

Baichang Wu, Nong Chen, Chuangtian Chen, Daoqun Deng, and Zuyan Xu
Opt. Lett. 14(19) 1080-1081 (1989)