EP 1073920 A1 20010207 - METHOD OF MAKING OPTICAL FIBERS
Title (en)
METHOD OF MAKING OPTICAL FIBERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON OPTISCHEN FASERN
Title (fr)
PROCEDE DE FABRICATION DE FIBRES OPTIQUES
Publication
Application
Priority
- US 9907845 W 19990409
- US 8269998 P 19980422
Abstract (en)
[origin: WO9954763A1] An optical fiber and method of making, wherein the optical fiber alternates between regions having different diameters along its length, wherein the refractive index of said blank and the diameters of said fiber are chosen to result in a fiber having alternating regions of positive and negative dispersion at a wavelength which is greater than 1480 nm, yet preferably has a low net dispersion and dispersion slope. A preferred such profile consists of a core region surrounded by a cladding region, said core region comprised of a central core region which is updoped with respect to said cladding region, said central core region surrounded by a moat region which is downdoped with respect to said cladding region, and said moat region is surrounded by an annular ring region which is updoped with respect to said cladding region.
IPC 1-7
IPC 8 full level
G02B 6/00 (2006.01); C03B 37/025 (2006.01); C03B 37/027 (2006.01); G02B 6/02 (2006.01)
CPC (source: EP KR)
C03B 37/0253 (2013.01 - EP KR); C03B 37/027 (2013.01 - EP KR); C03B 37/02736 (2013.01 - EP KR); G02B 6/02242 (2013.01 - EP KR); G02B 6/02247 (2013.01 - EP KR); G02B 6/03611 (2013.01 - EP KR); G02B 6/03644 (2013.01 - EP KR); C03B 2203/06 (2013.01 - EP KR); C03B 2203/18 (2013.01 - EP); C03B 2203/24 (2013.01 - EP KR); C03B 2203/36 (2013.01 - EP); C03B 2205/40 (2013.01 - EP KR)
Citation (search report)
See references of WO 9954763A1
Designated contracting state (EPC)
CH DE DK FI FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9954763 A1 19991028; AU 3552599 A 19991108; BR 9909523 A 20001212; CA 2326682 A1 19991028; CN 1300375 A 20010620; EP 1073920 A1 20010207; ID 29266 A 20010816; JP 2002512172 A 20020423; KR 20010042885 A 20010525; TW 417026 B 20010101; ZA 992622 B 19991008
DOCDB simple family (application)
US 9907845 W 19990409; AU 3552599 A 19990409; BR 9909523 A 19990409; CA 2326682 A 19990409; CN 99805272 A 19990409; EP 99917390 A 19990409; ID 20002414 A 19990409; JP 2000545051 A 19990409; KR 20007011666 A 20001020; TW 88106674 A 19990423; ZA 992622 A 19990409