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Browsing by Author "Meng-Chang"

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    Fabrication of true apodized fiber Bragg grating using a new two-beam interferometer with polarization control
    (2005-11-08)
    Chuang
    ;
    Kai-Ping
    ;
    Sheu
    ;
    Lih-Gen
    ;
    Tsai
    The present invention provides a two-beam interference exposure system that can be simply adjusted by rotating only one mirror. By placing a half-wave plate in one of the interference arms and precisely scanning the relative fiber position, the present invention can expose true apodized fiber Bragg gratings in a single scan by simultaneously rotating the angle of the half-wave plate. By rotationally switching the fast and slow axes of the half-wave plate, the present invention can also expose n-phase-shifted fiber grating by the same system.