Chinese Optics Letters, 2010, 8 (7): 693, Published Online: Jul. 19, 2010
Theoretical analysis of the second-harmonic light power in a biaxial crystal Download: 688次
二次谐波产生 双轴晶体 环型腔 三硼酸锂 190.2620 Harmonic generation and mixing 140.3515 Lasers, frequency doubled 160.4330 Nonlinear optical materials 140.3560 Lasers, ring
Abstract
Theoretical analyses are presented on the critically phase-matched second-harmonic generation (SHG) in a biaxial crystal with the focused fundamental Gaussian beams. The dependence of the second-harmonic light power on the phase matching conditions, focused geometries, walk-off effects, and absorptions are discussed in detail. Expressions are presented for calculating the light power of the types I and II SHGs in the biaxial crystal, applied to optimize the blue light generation with the LiB3O5 crystal. A maximum conversion efficiency of around 37% is obtained with 798-nm laser power of 500 mW.
Guohui Li, Jie Ye, Xinye Xu. Theoretical analysis of the second-harmonic light power in a biaxial crystal[J]. Chinese Optics Letters, 2010, 8(7): 693.