Enhancement of measurement accuracy in fiber Bragg grating sensors by using digital signal processing

C. C. Chan, Wei Jin, M. S. Demokan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Measurements were carried out using finite impulse response (FIR) filters. The objective was to improve the wavelength detection accuracy in fiber Bragg grating (FBG) sensors. The test the effectiveness of the FIR filter, the noise generated was deliberately made large by cutting the fiber in the reflected wave in such a way that the reflected wave from the cut end experiences similar optical path length as traveled by the signal wave to generate observable interferometric noise. For a number of strain values from 0-1000 με applied to the FBG, the maximum error strain in measurement was found to be ±14 με.
Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics Europe - Technical Digest
Number of pages2
Publication statusPublished - 1 Jan 1998
EventProceedings of the 1998 Conference on Lasers and Electro-Optics, CLEO - San Francisco, CA, United States
Duration: 3 May 19988 May 1998


ConferenceProceedings of the 1998 Conference on Lasers and Electro-Optics, CLEO
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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