Low coherence tandem interferometry for the measurement of differential length sensing at two widely separated locations

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An all optical fibre based sensing configuration designed to measure the changes in differential length of two independent Fabry-Perot cavities at widely separated locations in an environment where strong temperature gradients may exist is demonstrated. Two Fabry-Perot sensing cavities are formed between the cleaved end of a fibre and a reflective surface. The presented technique is based on low coherence tandem interferometry incorporating high coherence interferometry as a calibration measurement.

Original languageEnglish
Title of host publicationFourth Asia Pacific Optical Sensors Conference
EditorsMinghong Yang, Yun-Jiang Rao, Dongning Wang
PublisherSPIE
Number of pages4
Volume8924
ISBN (Print)9780819498168
DOIs
Publication statusPublished - 2013
EventFourth Asia Pacific Optical Sensors Conference - Wuhan, China
Duration: 15 Oct 201318 Oct 2013

Publication series

NameProceedings of SPIE
Volume8924
ISSN (Print)1996-756X
ISSN (Electronic)0277-786X

Conference

ConferenceFourth Asia Pacific Optical Sensors Conference
Abbreviated titleAPOS 2013
CountryChina
CityWuhan
Period15/10/1318/10/13

Keywords

  • optical fibre sensor
  • tandem interferometry
  • low coherence
  • high coherence
  • pressure sensor
  • THICKNESS MEASUREMENT
  • SENSOR

Cite this

Smith, M. D., MacPherson, W. N., & Maier, R. R. J. (2013). Low coherence tandem interferometry for the measurement of differential length sensing at two widely separated locations. In M. Yang, Y-J. Rao, & D. Wang (Eds.), Fourth Asia Pacific Optical Sensors Conference (Vol. 8924). [89241O] (Proceedings of SPIE; Vol. 8924). SPIE. https://doi.org/10.1117/12.2034272