SIMPLE METHODS OF MEASURING THE NET PHOTOREFRACTIVE PHASE-SHIFT AND COUPLING-CONSTANT

被引：28

作者：

HOFMEISTER, R ^{[1
]}

YARIV, A ^{[1
]}

KEWITSCH, A ^{[1
]}

YAGI, S ^{[1
]}

机构：

[1] NTT INTERDISCIPLINARY RES LABS,IBARAKI,JAPAN

来源：

OPTICS LETTERS | 1993年 / 18卷 / 07期

关键词：

Light refraction - Lithium compounds - Numerical analysis;

D O I：

10.1364/OL.18.000488

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report measurements of the photorefractive phase shift and coupling constant of several photorefractive materials. We solve the problem of beam coupling and diffraction in a material with a dynamically written grating for arbitrary input beams. These solutions are used to determine the beam coupling as a function of the photorefractive phase phi and coupling constant g when one beam is either sinusoidally phase modulated or ramped ih phase. Experimental results are obtained for LiNbO3, BaTiO3, and for paraelectric potassium lithium tantalate niobate as a function of applied electric field.

引用

页码：488 / 490

页数：3

共 9 条

[1] CHARACTERIZATION OF A NEW PHOTOREFRACTIVE MATERIAL - K1-YLYT1-XNX [J].