Simultaneous strain and temperature measurement using a superstructure fiber Bragg grating

Bai Ou Guan, Hwa Yaw Tam, Xiaoming Tao, Xiao Yi Dong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

310 Citations (Scopus)


A novel and simple fiber-optic sensor based on a superstructure fiber Bragg grating (SFBG) for simultaneous strain and temperature measurement is proposed and demonstrated. The transmission spectrum of the sensor possesses several narrow-band loss peaks situated on the slope of a broad-band loss peak. By measuring the transmitted intensity and wavelength at one of the loss peaks, strain and temperature can be determined simultaneously. The accuracy of the sensor in measuring strain and temperature is estimated to be ±20 με in a range from 0 to 1200 με and ±1.2°C from 20°C to 120°C, respectively.
Original languageEnglish
Pages (from-to)675-677
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number6
Publication statusPublished - 1 Jun 2000

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

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