Fiber-laser-based wavelength-division multiplexed fiber Bragg grating sensor system

Youlong Yu, Luenfu Lui, Hwa Yaw Tam, Wenghong Chung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

98 Citations (Scopus)


A wavelength-division-multiplexing technique for interrogating 10-cascaded fiber Bragg grating sensing elements based on a ring-compounded-cavity fiber laser is reported. A feedback control technique was introduced to a tunable Fabry-Perot filter that tracks the wavelength-shift of the sensor. The sensors were demodulated using an unbalanced scanning Michelson interferometer and a sensitivity of 1.682°/με has been demonstrated.
Original languageEnglish
Pages (from-to)702-704
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number7
Publication statusPublished - 1 Jul 2001


  • Demodulation and fiber Bragg grating sensor system
  • Fiber Bragg grating
  • Interrogation
  • Ring-cavity laser
  • Wavelength-division multiplexed

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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