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1. CA2422460 - MANUFACTURING A FIBER BRAGG GRATING AND A MASK USED IN THE FABRICATION OF A FIBER BRAGG GRATING

Office
Canada
Application Number 2422460
Application Date 19.09.2001
Publication Number 2422460
Publication Date 28.03.2002
Publication Kind A1
IPC
G02B 6/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
G02B 6/02
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
02Optical fibre with cladding
CPC
G02B 6/02138
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
02Optical fibre with cladding ; with or without a coating
02057comprising gratings
02076Refractive index modulation gratings, e.g. Bragg gratings
02123characterised by the method of manufacture of the grating
02133using beam interference
02138based on illuminating a phase mask
Applicants PHAETHON COMMUNICATIONS
Inventors ZWEIBACK, JASON
ROTHENBERG, JOSHUA E.
POPELEK, JAN
CALDWELL, ROGER F.
Priority Data 09757386 08.01.2001 US
09957443 18.09.2001 US
60/234,318 20.09.2000 US
60/235,873 27.09.2000 US
60/241,594 18.10.2000 US
60/243,423 25.10.2000 US
Title
(EN) MANUFACTURING A FIBER BRAGG GRATING AND A MASK USED IN THE FABRICATION OF A FIBER BRAGG GRATING
(FR) FABRICATION DE RESEAUX DE BRAGG EN FIBRES ET MASQUE UTILISE DANS LA FABRICATION DESDITS RESEAUX
Abstract
(EN)
The invention reduces the effects of stitching errors from re-scaling or re- positioning in the fabrication of fiber Bragg gratings or the mask used in such fabrication. A first embodiment of the invention preferably uses characteristics of stitching errors to compensate for the stitching errors themselves. By increasing the number of stitching errors, errors caused by the stitching errors can be reduced. A second embodiment uses continuous writing of the desired pattern, wherein the desired pattern is snapped to a grid that can be written by the fabrication equipment. Using continuous writing eliminates stitching errors in the resulting gratings.

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