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Proceedings Paper

A macrobending fiber based vibration sensor using Whispering Gallery mode
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Paper Abstract

An all-fiber vibration sensor based on a bare macrobending singlemode fiber is proposed and developed. The fiber sensor consists of a half-loop bending fiber structure and utilizes the well-known Whispering Gallery mode (WGM) effect. A measurement system involving the proposed fiber vibration sensor is presented and investigated. By using this system, the vibration can be characterized by measuring the fluctuations in the macrobending fiber loss corresponding to the variation of the bending diameter of the fiber. The proposed vibration sensor is capable of measuring vibrations up to 2 kHz; and further investigations are ongoing to improve the frequency range.

Paper Details

Date Published: 14 May 2010
PDF: 9 pages
Proc. SPIE 7726, Optical Sensing and Detection, 772623 (14 May 2010); doi: 10.1117/12.854638
Show Author Affiliations
Pengfei Wang, Dublin Institute of Technology (Ireland)
Yuliya Semenova, Dublin Institute of Technology (Ireland)
An Sun, Dublin Institute of Technology (Ireland)
Qiang Wu, Dublin Institute of Technology (Ireland)
Gerald Farrell, Dublin Institute of Technology (Ireland)


Published in SPIE Proceedings Vol. 7726:
Optical Sensing and Detection
Francis Berghmans; Anna Grazia Mignani; Chris A. van Hoof, Editor(s)

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