Technique of applying the prism-coupler method for accurate measurement of the effective indices of channel waveguides

被引：19
|
作者：
Chiang, Kin Seng [1 ]
Cheng, Sin Yip [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China
来源：
OPTICAL ENGINEERING | 2008年 / 47卷 / 03期
关键词：
ion-exchanged waveguides; graded-index waveguides; optical channel waveguides; optical measurement; optical waveguide characterization; thin-film waveguides;
D O I：
10.1117/1.2896412
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a technique of applying the prism- coupler method for accurate measurement of the effective indices of channel waveguides, which can have step- or graded- index profiles. The technique involves coupling light from a prism into an array of waveguides, varying the angle between the prism axis and the array axis, and curve fitting of the measurement data. We demonstrate the technique with arrays of polymer waveguides and ion- exchanged glass waveguides. (C) 2008 Society of Photo- Optical Instrumentation Engineers.
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页数：4
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