EP 1315988 A2 20030604 - APODIZATION METHOD FOR A BRAGG GRATING
Title (en)
APODIZATION METHOD FOR A BRAGG GRATING
Title (de)
VERFAHREN ZUR APODISIERUNG EINES BRAGG-GITTERS
Title (fr)
PROCEDE D'APODISATION D'UN RESEAU DE BRAGG
Publication
Application
Priority
- FR 0102691 W 20010829
- FR 0011066 A 20000830
Abstract (en)
[origin: FR2813398A1] The invention concerns a method for photoimprinting a Bragg grating on an optical fibre (300) or guide, which comprises a step which consists in exposing a selected zone of the fibre (300) or guide with a light beam (120) using a mirror (200) so as to fold a part (122) of the beam source (120) reflected by the mirror (200) on a part (224) of the beam source not reflected by the mirror and to obtain a diffraction grating on the fibre (300) or guide. The invention is characterised in that it comprises a step which consists in further exposing said part of the fibre (300) or guide, and in carrying out a relative displacement of the elements among the beam (120), the fibre (300) or the guide and the mirror (200) between the two exposure steps, so that one same part of the beam (120) used for photoimprinting in the two exposure steps, is reflected by the mirror (200) in one of the two steps and not reflected by the mirror (200) in the other step.
IPC 1-7
IPC 8 full level
G02B 6/02 (2006.01); G02B 5/18 (2006.01); G02B 6/10 (2006.01); G02B 6/34 (2006.01)
CPC (source: EP US)
G02B 6/02085 (2013.01 - EP US); G02B 6/02133 (2013.01 - EP US); G02B 6/02152 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
FR 2813398 A1 20020301; FR 2813398 B1 20031205; AU 8602101 A 20020313; EP 1315988 A2 20030604; US 2004096156 A1 20040520; US 6868208 B2 20050315; WO 0218996 A2 20020307; WO 0218996 A3 20020718
DOCDB simple family (application)
FR 0011066 A 20000830; AU 8602101 A 20010829; EP 01965372 A 20010829; FR 0102691 W 20010829; US 36357003 A 20031021