Global Patent Index - EP 1237823 A1

EP 1237823 A1 2002-09-11 - METHOD OF FORMING A GRATING IN AN OPTICAL WAVEGUIDE

Title (en)

METHOD OF FORMING A GRATING IN AN OPTICAL WAVEGUIDE

Title (de)

VERFAHREN ZUR ERZEUGUNG EINES GITTERS IN EINEM OPTISCHEN WELLENLEITER

Title (fr)

PROCEDE PERMETTANT DE FORMER UN RESEAU DANS UN GUIDE D'ONDES OPTIQUE

Publication

EP 1237823 A1 (EN)

Application

EP 00963274 A

Priority

  • US 0023501 W
  • US 39898699 A

Abstract (en)

[origin: WO0121538A1] A fiber is put in a tube (34). The tube is sealed. A grating is written into the fiber in the tube (38).

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

C03B 37/10; G02B 6/124; G02B 6/16; G02B 6/293

IPC 8 full level (invention and additional information)

G02B 6/13 (2006.01); C03C 15/00 (2006.01); C03C 23/00 (2006.01); C03C 25/00 (2006.01); G02B 5/18 (2006.01); G02B 6/02 (2006.01)

CPC (invention and additional information)

G02B 6/02123 (2013.01); C03C 15/00 (2013.01); C03C 23/0025 (2013.01); C03C 25/002 (2013.01); G02B 6/02209 (2013.01)

Citation (search report)

See references of WO 0121538A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 0121538 A1 20010329; AU 7471100 A 20010424; CA 2388493 A1 20010329; CN 1374932 A 20021016; EP 1237823 A1 20020911; JP 2003509732 A 20030311; KR 20020038756 A 20020523; TW 518436 B 20030121

INPADOC legal status


2005-01-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7C 03B 37/10 A

2005-01-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 02B 6/16 B

2005-01-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 02B 6/293 B

2005-01-12 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7G 02B 6/124 B

2004-12-01 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040901

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE FR GB IT

2002-09-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020410

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI