METHOD FOR MEASURING THE MODE-INDEX RATIO OF 2 REGIONS IN A PLANAR WAVE-GUIDE

被引：2

作者：

AGAPIOU, GS ^{[1
]}

VERBER, CM ^{[1
]}

机构：

[1] GEORGIA INST TECHNOL,CTR OPT SCI & ENGN,ATLANTA,GA 30322

来源：

APPLIED OPTICS | 1992年 / 31卷 / 09期

关键词：

D O I：

10.1364/AO.31.001257

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for measuring the mode-index ratio n of two regions of a planar waveguide with an accuracy of better than 2 in 10(5) is presented. Simple and reliable techniques were utilized to produce two contiguous waveguides, with different refractive indices, on a common substrate. The two waveguiding regions were fabricated both in LiNbO3 and in BK-7 glass by using titanium indiffusion followed by a proton-exchange (TIPE) process and a two-step Ag+/Na+ ion-exchange technique, respectively. The measured mode-index ratios obtained by our method agreed well with values obtained with the conventional prism-coupling technique.

引用

页码：1257 / 1260

页数：4

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