14 January 2008 A multi-point temperature warning sensor system with different thresholds using a multi-channel reference FBG
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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.
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Xia Li, Xia Li, Qizhen Sun, Qizhen Sun, P. Shum, P. Shum, Ngo Quoc Nam, Ngo Quoc Nam, Teehiang Cheng, Teehiang Cheng, Deming Liu, 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); doi: 10.1117/12.743508; https://doi.org/10.1117/12.743508
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