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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/28189


    Title: Electrically nulled interferometric sensor based on triangular phase modulation
    Authors: Chien,PY;Chang,YS;Chang,MW
    Contributors: 光電科學研究所
    Keywords: FIBER-OPTIC GYROSCOPE;FEEDBACK
    Date: 1997
    Issue Date: 2010-06-29 19:43:19 (UTC+8)
    Publisher: 中央大學
    Abstract: We describe a technique for nulling the optical phase change induced by a fiber interferometric sensor. This scheme utilizes a triangular waveform to modulate an integrated optic phase modulator. The output signal of the interferometer is then mixed with a switching pulse train with proper pulse width and space. The switching pulse trains are generated from a triangular waveform and three comparators with different polarity. The operating principle is demonstrated by using a fiber optic gyroscope (FOG). A sensor system with wide dynamic range and linear scale factor has been successfully implemented by using this technique.
    Relation: OPTICS COMMUNICATIONS
    Appears in Collections:[Graduate Institute of Optics and Photonics] journal & Dissertation

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