A miniature reflective micro-force sensor based on a microfiber coupler

A compact highly sensitive microfiber coupler based reflective micro-force sensor is presented. The device is fabricated by fusing two twisted optical fibers and then connecting two of the pigtails to form a Sagnac loop. The sensor has a high force sensitivity of ~3754 nm/N which is three orders of...

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Bibliographic Details
Published inOptics express Vol. 22; no. 3; pp. 2443 - 2450
Main Authors Chen, Ye, Yan, Shao-cheng, Zheng, Xin, Xu, Fei, Lu, Yan-qing
Format Journal Article
LanguageEnglish
Published United States 10.02.2014
Subjects
Equipment Design
Equipment Failure Analysis
Fiber Optic Technology - instrumentation
Miniaturization
Photometry - instrumentation
Stress, Mechanical
Transducers, Pressure
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Summary:A compact highly sensitive microfiber coupler based reflective micro-force sensor is presented. The device is fabricated by fusing two twisted optical fibers and then connecting two of the pigtails to form a Sagnac loop. The sensor has a high force sensitivity of ~3754 nm/N which is three orders of magnitude larger than traditional optical fiber force sensors, and a low detection limit of ~1.6 µN. The good repeatability is also shown in this paper.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.22.002443