Type

Journal Article

Authors

Gerald Farrell
Qiang wu
Yuliya Semenova
Pengfei Wang

Subjects

Physics

Topics
temperature dependence macrobending loss singlemode fiber fiber bragg grating displacement sensor engineering ratiometric measurement power system

A Bend Loss Based Singlemode Fiber Micro-displacement Sensor (2010)

Abstract An all-fiber displacement sensor with a simple configuration is proposed and investigated theoretically and experimentally. The proposed fiber displacement sensor consists of a half-loop structure of high-bend loss singlemode fiber-1060XP. A ratiometric power measurement system for interrogating the proposed sensor is also presented. By measuring the change in ratio of bend loss in the ratiometric measurement system, a change in displacement can be measured assuming the ratiometric system is calibrated. The proposed macrobending fiber based displacement sensor achieves a competitive resolution of circa 0.33 μm and also benefits from simplicity compared with the conventional fiber Bragg grating based displacement sensor. The bend loss fiber based displacement sensing system is sensitive to temperature, but the ratio response has a linear variation with temperature, which can be corrected by a suitable displacement correction process. Corresponding investigation on the temperature dependence of the macrobending fiber based displacement sensing system is presented in this paper.
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Full list of authors on original publication

Gerald Farrell, Qiang wu, Yuliya Semenova, Pengfei Wang

Experts in our system

1
Gerald Farrell
TU Dublin
Total Publications: 212
 
2
Qiang wu
TU Dublin
Total Publications: 90
 
3
Yuliya Semenova
TU Dublin
Total Publications: 136
 
4
Pengfei Wang
University of Limerick
Total Publications: 114