EP 0800716 A1 19971015 - OPTICAL FIBRE WITH A FLUORESCENT DOPANT
Title (en)
OPTICAL FIBRE WITH A FLUORESCENT DOPANT
Title (de)
OPTISCHE FASER MIT FLUORESZENTER DOTIERUNG
Title (fr)
FIBRE OPTIQUE COMPRENANT UN DOPANT FLUORESCENT
Publication
Application
Priority
- FR 9601664 W 19961024
- FR 9512859 A 19951031
Abstract (en)
[origin: WO9716875A1] An optical fibre including a silica-based optical core (6) for guiding most of the light waves, containing a fluorescent dopant and being surrounded by a silica-based optical sheath (5) with a lower refractive index than the core. Said core includes a central portion (2) having a radius a0 and containing said fluorescent dopant, and a peripheral portion (4) having a radius a, surrounding said central portion, having a higher refractive index than the sheath and containing no fluorescent dopant. Said core (6) further includes an intermediate portion (3) having a radius a1 and a higher softening point than said central portion (2). Said intermediate portion (3) contains no fluorescent dopant and is such that a0 < a1 < a.
IPC 1-7
IPC 8 full level
G02B 6/036 (2006.01); C03C 13/04 (2006.01); H01S 3/067 (2006.01); H01S 3/07 (2006.01); H01S 3/17 (2006.01)
CPC (source: EP US)
C03C 13/045 (2013.01 - EP US); H01S 3/06708 (2013.01 - EP US); H01S 3/06729 (2013.01 - EP US)
Citation (search report)
See references of WO 9716875A1
Designated contracting state (EPC)
DE DK GB IT
DOCDB simple family (publication)
WO 9716875 A1 19970509; EP 0800716 A1 19971015; FR 2740563 A1 19970430; FR 2740563 B1 19971121; JP H10512403 A 19981124; US 5892876 A 19990406
DOCDB simple family (application)
FR 9601664 W 19961024; EP 96934965 A 19961024; FR 9512859 A 19951031; JP 51710797 A 19961024; US 86037497 A 19970625