System and method for fabricating Bragg gratings
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United States of America Patent
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Aug 29, 2006
Grant Date -
Jan 13, 2005
app pub date -
Mar 6, 2002
filing date -
Mar 8, 2001
priority date (Note) -
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Abstract
A novel method and apparatus for fabrication of blazed and slanted fiber Bragg gratings is disclosed. The method comprises the step of simultaneously exposing the fiber with two mutually coherent light beams so as to create an interference pattern along a longitudinal axis of the fiber, wherein each one of said beams is brought into a line focus, which coincides with the core of the fiber. Further, the plane comprising the beams is rotated to provide a second angle relative to the fiber direction, said rotation giving rise to a blazing angle of the photo-induced grating elements.
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