Coupling-wave structures for optical waveguide sensors

被引：8

作者：

Qing, DK ^{[1
]}

Yamaguchi, I ^{[1
]}

Itoh, K ^{[1
]}

Murabayashi, M ^{[1
]}

机构：

[1] YOKOHAMA NATL UNIV, INST ENVIRONM SCI & TECHNOL, HODOGAYA KU, YOKOHAMA, KANAGAWA 240, JAPAN

来源：

OPTICAL REVIEW | 1997年 / 4卷 / 05期

关键词：

codirectional coupler; coupling wave; optical waveguide sensors; absorption-based sensors; fluorescence-based sensors; refractive-index-based sensors;

D O I：

10.1007/s10043-997-0578-z

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical waveguide sensor structure, i.e. a coupling-wave structure, is presented and analysed on the basis of a codirectional coupler. Potential uses for absorption-and fluorescence based sensors are theoretically explained by the group index method (D.-K. Qing, X-.M-. Chen, K. Itoh, M. Murabayashi: J. Lightwave Technol. 14 (1996) 1907). Refractive-index-based sensors were also analysed. An actual coupling-wave structure was realized by combining the ion-exchange and the sol-gel methods. The coupling-wave structure that provides effective sensing interaction is easy to fabricate and can be used to realize optical waveguide chemical or biological sensors.

引用

页码：578 / 583

页数：6

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