Theoretical expression for change of extraordinary refractive index in annealed proton exchanged LiNbO3 optical waveguides

被引：7

作者：

Singh, GK ^{[1
]}

Singh, AP ^{[1
]}

Sharma, VK ^{[1
]}

Kapoor, A ^{[1
]}

Tripathi, KN ^{[1
]}

机构：

[1] Univ Delhi, Dept Elect Sci, New Delhi 110021, India

来源：

OPTICS AND LASER TECHNOLOGY | 2002年 / 34卷 / 03期

关键词：

LiNbO3; refractive index; optical waveguides;

D O I：

10.1016/S0030-3992(01)00114-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A general expression for the change in extraordinary refractive index of the annealed proton exchanged LiNbO3 waveguide has been deduced. The expression deduced explains the experimental results of decrease in change of extraordinary refractive index with annealing. The effect of annealing time has also been incorporated following Cao's model (Cao, Ramaswamy, Srivastava, J. Lightwave Technol. 10 (1992) 1302-1313). The concentration profile of protons in the annealed waveguide has been deduced theoretically, which is consistent with the previous results. The spontaneous polarization has been considered as the central mechanism for change in extraordinary refractive index due to proton exchange with annealing. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：219 / 223

页数：5

共 20 条

[1] COMPARISON OF GUIDED-WAVE INTERFEROMETRIC MODULATORS FABRICATED ON LINBO3 VIA TI INDIFFUSION AND PROTON-EXCHANGE [J].