Method of fabricating Bragg gratings using a silica glass phase grating mask and mask used by same
USRE39865E1 · kind E1 · reissue
6Cited by
24References
41Claims
0Family size
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Key dates
| Filing date | Jun 29, 1999 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Jun 29, 2019 |
Classification
- Technology area (CPC —)General
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.