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Browsing by Author "Hsin Chen-Wei"

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    Long-length fiber Bragg creating sequential UV writing by probing phase mask
    (2011-09-27)
    Hsu Kuei-Chu
    ;
    Lai Yin-Chieh
    ;
    Hsin Chen-Wei
    A new fiber position monitoring method for sequential FBG UV-writing processes with a reference phase mask as the phase reference is proposed. Also, the new method by probing a reference phase mask can overcome the optical alignment difficulties in using reference fiber as well as provide more signal power for achieving better monitoring accuracy. Moreover, the present invention provides a method for sequentially joining a plurality of grating sections into a fiber grating longer than a phase mask.