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Browsing by Author "Cheng, Bing-Chung"

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    Long-distance strain-induced-grating-based fiber sensors with erbium-based amplifiers
    (2007-06-01)
    Yeh, Chien-Hung
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    Lin, Ming-Ching
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    Cheng, Bing-Chung
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    Chi, Sien
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    光電工程學系
    We investigate and demonstrate experimentally a two-stage erbium-based amplifier with a larger amplified-spontaneous-emission light source for a long-distance fiber sensor by using strain-induced fiber Bragg gratings in the fiber systems. In a 20-km-long fiber sensor system, the sensor has a maximal approximate to 2.28-nm wavelength shift under a 1500-mu m/m strain. (c) 2007 Society of Photo-Optical Instrumentation Engineers.