Determination of the optimum phase-matching directions for the self-frequency conversion of Nd:GdCOB and Nd:YCOB crystals

被引：12
作者：
Chen, XY [1 ]
Huang, ML
Luo, ZD
Huang, YD
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian 350002, Peoples R China
[2] Huaqiao Univ, Coll Mat Sci & Engn, Fujian 362011, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2001年 / 196卷 / 1-6期
基金：
中国国家自然科学基金;
关键词：
self-frequency conversion; Nd : GdCOB; Nd : YCOB; phase matching;
D O I：
10.1016/S0030-4018(01)01379-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the nonlinear optical properties of Nd:Ca4GdO(BO3)(3) (Nd:GdCOB) and Nd:Ca4YO(BO3)(3) (Nd:-YCOB) biaxial crystals by theoretical calculation. The phase-matching curves for the self-frequency conversion generation of both crystals are presented. The dependence of the effective nonlinear coefficients and walk-off angles on different phase-matching directions are discussed. The results show that the optimum type-I phase-matching directions for the self-frequency doubling and self-sum-frequency mixing lasers are not in the principal planes but are located respectively in the directions (theta = 67.1 degrees, phi = 132.35 degrees) and (theta = 68.75 degrees, phi = 118.1 degrees) for Nd:GdCOB, and (theta = 66.5 degrees, phi = 143.4 degrees) and (theta = 65.9 degrees, phi = 134.1 degrees) for Nd:YCOB. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：299 / 307
页数：9
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