In-line displacement sensor based on fiber-to-tapered planar waveguide coupler

被引：3

作者：

Kim, KT ^{[1
]}

Hwangbo, S ^{[1
]}

机构：

[1] Honam Univ, Dept Optoelect, Kwangju 506714, South Korea

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2005年 / 120卷 / 01期

关键词：

displacement sensor; side-polished fiber; planar waveguide; coupler;

D O I：

10.1016/j.sna.2004.11.009

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A fiber-optic displacement sensor based on a side-polished single-mode (SM) fiber in contact with a tapered planar waveguide (PWG) is investigated theoretically and experimentally. The thickness variation of the tapered PWG in the side-polished region leads to a shift in the resonance wavelength, and the sensor revealed a highly linear relation between the variation of the resonance wavelength and the displacement of the tapered PWG. The design and fabrication technique are presented, and the spectral and polarization characteristics measured and explained. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：59 / 63

页数：5

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