A macrobending fiber based micro-displacement sensor

Pengfei Wang, Yuliya Semenova, Qiang Wu, Gerald Farrell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An all-fiber micron displacement sensor with a simple configuration is proposed and investigated experimentally. The proposed fiber displacement sensor consists of a half-loop structure of bare high-bend loss singlemode fiber-1060XP, employing the well-known Whispering Gallery mode (WGM) effect. 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 system, a change in displacement can be measured assuming the ratiometric system is calibrated. The proposed macrobending fiber based displacement sensor achieves a higher resolution (less than 75 nm of displacement) than other conventional fiber-optic sensors and also benefits from simplicity.

Original languageEnglish
Title of host publication2010 Symposium on Photonics and Optoelectronic, SOPO 2010 - Proceedings
DOIs
Publication statusPublished - 2010
EventInternational Symposium on Photonics and Optoelectronics, SOPO 2010 - Chengdu, China
Duration: 19 Jun 201021 Jun 2010

Publication series

Name2010 Symposium on Photonics and Optoelectronic, SOPO 2010 - Proceedings

Conference

ConferenceInternational Symposium on Photonics and Optoelectronics, SOPO 2010
Country/TerritoryChina
CityChengdu
Period19/06/1021/06/10

Keywords

  • Displacement sensor
  • Macrobending loss
  • Ratiometric
  • Singlemode fiber

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