Discrimination between strain and temperature with a single fiber Bragg grating

Bai Ou Guan, Hwa Yaw Tam, Helen L W Chan, Chung Loong Choy, Muhtesem Süleyman Demokan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

39 Citations (Scopus)


A new sheme is proposed for simultaneous strain and temperature measurement with a single-fiber Bragg grating. The grating sensor was written on the splice joint between two fibers and has two resonance peaks because of the different refractive index between the two fibers. By bonding one section of the grating onto the substrate of large thermal expansion coefficient, the two resonance peaks exhibit different strain and temperature response and can thus be used for strain/temperature discrimination.
Original languageEnglish
Pages (from-to)200-202
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number3
Publication statusPublished - 5 May 2002


  • Fiber Bragg grating
  • Fiber-optic sensor
  • Strain: Temperature

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics


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