Global Patent Index - EP 0864115 A4

EP 0864115 A4 2000-02-02 - OPTICAL WAVEGUIDE FIBER BRAGG GRATING

Title (en)

OPTICAL WAVEGUIDE FIBER BRAGG GRATING

Title (de)

OPTISCHE FASER MIT EINEM BRAGG-GITTER

Title (fr)

RESEAU DE BRAGG A FIBRE GUIDE D'ONDE OPTIQUE

Publication

EP 0864115 A4 (EN)

Application

EP 97938074 A

Priority

  • US 9713442 W
  • US 2349296 P

Abstract (en)

[origin: WO9806001A1] A method for side writing Bragg gratings, having minimal birefringence, in a waveguide structure (2) is disclosed. The method employs the orientation of the polarization direction (10) of the writing light beam (8) relative to the long axis (7) of the waveguide structure (2) together with the orientation of the intrinsic birefringence slow axis (9) to effectively minimize birefringence in the subject grating.

IPC 1-7 (main, further and additional classification)

G02B 6/12; G02B 6/16

IPC 8 full level (invention and additional information)

G02B 6/122 (2006.01); C03B 37/10 (2006.01); C03C 25/62 (2006.01); G02B 5/18 (2006.01); G02B 6/02 (2006.01)

CPC (invention and additional information)

G02B 6/02109 (2013.01); C03C 25/62 (2013.01); C03C 25/6233 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

WO 9806001 A1 19980212; AU 4048797 A 19980225; AU 729859 B2 20010208; CA 2225342 A1 19980207; EP 0864115 A1 19980916; EP 0864115 A4 20000202; JP 2000502469 A 20000229

INPADOC legal status


2002-10-09 [18R] REFUSED

- Effective date: 20020518

2000-12-27 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001109

2000-02-02 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 19991216

2000-02-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR GB IT NL

2000-02-02 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7G 02B 6/12 A, 7G 02B 6/16 B

1998-09-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980318

1998-09-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT NL