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FBG laser sensing with polarization scrambling

  • Jeonbuk National University

Research output: Contribution to conferenceConference paperpeer-review

Abstract

We propose a laser sensor system which uses fiber Bragg gratings as laser cavity mirrors as well as sensors. With a spectrometer demodulation, a low-cost, more robust, and faster sensor functions have been demonstrated compared with the conventional wavelength-swept laser demodulation. Some of the multiple FBG sensors showed unstable lasing characteristics, leading to missing measurands. Polarization scrambling has been used to alleviate the problem. With fast polarization disturbances in the fiber-optic laser cavity, more FBG sensor outputs could be generated consistently and data acquisition rate has increased more than 5 times.

Original languageEnglish
Title of host publicationFourth Asia Pacific Optical Sensors Conference
DOIs
StatePublished - 2013
Event4th Asia-Pacific Optical Sensors Conference 2013, APOS 2013 - Wuhan, China
Duration: 2013.10.152013.10.18

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8924
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference4th Asia-Pacific Optical Sensors Conference 2013, APOS 2013
Country/TerritoryChina
CityWuhan
Period13.10.1513.10.18

Keywords

  • Cavity
  • Fiber Bragg grating
  • Laser sensor
  • Polarization scrambler
  • Sensor
  • Spectrometer

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Computer Science & Information Systems
  • Mathematics
  • Engineering - Electrical & Electronic
  • Engineering - Petroleum
  • Data Science
  • Physics & Astronomy

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