Global Patent Index - EP 1036343 A1

EP 1036343 A1 2000-09-20 - STABLE CLADDING GLASSES FOR SULPHIDE FIBRES

Title (en)

STABLE CLADDING GLASSES FOR SULPHIDE FIBRES

Title (de)

STABILE DECKGLÄSER FÜR SULFIDEFASERN

Title (fr)

VERRES DE REVETEMENT STABLES POUR FIBRES SULFUREES

Publication

EP 1036343 A1 (EN)

Application

EP 98956240 A

Priority

  • US 9822739 W
  • US 6427397 P

Abstract (en)

[origin: WO9923517A1] A stable cladding glass (12) for use in optical fibers (10). The invention is based upon the discovery that the addition of silicon or phosphorus in small amounts to GeAs sulfide glasses results in improved thermal stability and a lower refractive index.

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

G02B 6/00; C03C 3/32; G02B 6/16; H01S 3/07

IPC 8 full level (invention and additional information)

G02B 6/00 (2006.01); C03C 13/04 (2006.01); G02B 6/02 (2006.01); H01S 3/06 (2006.01); H01S 3/067 (2006.01)

CPC (invention and additional information)

H01S 3/06716 (2013.01); C03C 13/043 (2013.01); G02B 6/02 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 9923517 A1 19990514; AU 1281199 A 19990524; CA 2306267 A1 19990514; CN 1278927 A 20010103; EP 1036343 A1 20000920; EP 1036343 A4 20010829; JP 2001521875 A 20011113

INPADOC legal status


2003-11-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030501

2001-08-29 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010717

2001-08-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR GB IT

2001-08-29 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7G 02B 6/00 A, 7G 02B 6/16 B, 7C 03C 3/32 B, 7H 01S 3/07 B, 7C 03C 13/04 B, 7H 01S 3/067 B

2000-09-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000605

2000-09-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT