Method of fabricating Bragg gratings using a silica glass phase grating mask and mask used by same
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United States of America Patent
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Nov 22, 1994
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N/A
app pub date -
Oct 29, 1992
filing date -
Oct 29, 1992
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Abstract
An index grating is imprinted in the core of an optical fiber using a specially designed silica glass phase grating mask. The phase mask is held in close proximity to the optical fiber. Laser irradiation of the phase mask with ultraviolet light at normal incidence imprints (photoinduces) into the optical fiber core the interference pattern created by the phase mask.
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