A multi-point temperature warning sensor system with different thresholds using a multi-channel reference FBG

Xia Li; Qizhen Sun; P. Shum; Ngo Quoc Nam; Teehiang Cheng; Deming Liu

doi:10.1117/12.743508

14 January 2008 A multi-point temperature warning sensor system with different thresholds using a multi-channel reference FBG

Xia Li, Qizhen Sun, P. Shum, Ngo Quoc Nam, Teehiang Cheng, Deming Liu

Author Affiliations +

Proceedings Volume 6781, Passive Components and Fiber-based Devices IV; 67812J (2008) https://doi.org/10.1117/12.743508
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

Abstract

20 ns-width pulses are modulated on a multi-wavelength fiber ring laser and transmit into two fiber Bragg grating based sensing heads with different wavelength. When the temperature exceeds the threshold at certain position, the light at corresponding time slot and wavelength will be reflected. Thus, the warning location of temperature increasing will be easily determined from OTDM (optical time division multiplexing) demodulation technique.

Citation Download Citation

Xia Li, Qizhen Sun, P. Shum, Ngo Quoc Nam, Teehiang Cheng, and Deming Liu "A multi-point temperature warning sensor system with different thresholds using a multi-channel reference FBG", Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67812J (14 January 2008); https://doi.org/10.1117/12.743508

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