Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2008-06-03
2008-06-03
Connelly-Cushwa, M. R. (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
Reexamination Certificate
active
07382951
ABSTRACT:
The present invention provides a fiber Bragg Grating sequential writing method with real-time optical fiber position monitoring, characterized in that the relative phase between a fiber grating and a writing interference beam at each positioning point is determined by an interferometric side-diffraction method, and writing is sequentially performed. Accuracy in fabricating a long and complex fiber grating structure can be increased by decreasing or avoiding accumulative errors caused by long-term scan of monitoring optical fiber position, or by a means for fabricating a wanted reference fiber Bragg grating with similar settings.
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Chang Shu-Hui
Chuang Kai-Ping
Hsu Kuei-Chu
Lai Yinchieh
Sheu Lih-Gen
Bucknam and Archer
Connelly-Cushwa M. R.
National Chiao Tung University
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