A simple self-restored fiber Bragg grating (FBG)-based passive sensing ring network

Chien Hung Yeh*, Chi-Wai Chow, Chia Husan Wang, Fu Yuan Shih, Yu Fu Wu, Sien Chi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


In this investigation, we propose and experimentally investigate a simple self-restored fiber Bragg grating (FBG)-based sensor ring system. This proposed multi-ring passive sensing architecture does not require active components in the network. In this experiment, the network survivability and capacity for the multi-point sensor systems are also enhanced. Besides, the tunable laser source (TLS) is adopted in a central office (CO) for FBG sensing. The survivability of an eight-point FBG sensor is examined and analyzed. It is cost effective since the sensing system is entirely centralized in the CO. Experimental results show that the proposed system can enhance the reliability of the FBG sensing network for large-scale and multi-point architecture.

Original languageEnglish
Article number043001
JournalMeasurement Science and Technology
Issue number4
StatePublished - 1 Jan 2009


  • Fiber Bragg grating
  • Fiber sensor
  • Sensing network

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