Time- and wavelength-division multiplexing of FBG sensors using a semiconductor optical amplifier in ring cavity configuration

W. H. Chung, Hwa Yaw Tam, Ping Kong Alexander Wai, A. Khandelwal

Research output: Journal article publicationJournal articleAcademic researchpeer-review

54 Citations (Scopus)


A fiber Bragg grating (FBG) sensor system based on a semiconductor optical amplifier connected in a ring cavity configuration is proposed. The proposed configuration produces high power signal with good extinction ratio for FBGs with ∼1% reflectivity. A sensor system consists of four group of three FBGs of different wavelengths was constructed to demonstrate time- and wavelength-division multiplexing of FBG sensors.
Original languageEnglish
Pages (from-to)2709-2711
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number12
Publication statusPublished - 1 Dec 2005


  • Fiber Bragg grating (FBG)
  • Semiconductor optical amplifier
  • Sensors
  • Time-division multiplexing (TDM)
  • Wavelength-division multiplexing (WDM)

ASJC Scopus subject areas

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

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