EP 1337484 A2 20030827 - METHOD OF MANUFACTURING AN OPTICAL FIBER PREFORM
Title (en)
METHOD OF MANUFACTURING AN OPTICAL FIBER PREFORM
Title (de)
VERFAHREN ZUM HERSTELLEN EINER VORFORM FÜR OPTISCHE FASERN
Title (fr)
PROCEDE DE FABRICATION D'UNE PREFORME DE FIBRE OPTIQUE
Publication
Application
Priority
- US 0142464 W 20011005
- US 70400600 A 20001101
Abstract (en)
[origin: WO0236510A2] A method of manufacturing an optical fiber preform including providing a first tubular core layer having a silica-containing glass or soot, depositing a doped silica soot onto the first tubular layer to form a second tubular core layer, consolidating at least the second tubular core layer, and etching away at least part of the first tubular core layer by exposing the layer to an etchant. Preferably less than all of the first tubular layer is etched away. According to one embodiment, the second core layer includes a rare earth element such as Er, Tm, Nd, Pm, Yb, or Sm, for example.
[origin: WO0236510A2] A method of manufacturing an optical fiber preform including providing a first tubular having a silica-containing core layer as a glass tube or soot deposit depositing a doped silica soot onto the first tubular layer to form a second tubular core layer, consolidating at least the second tubular core layer (preferably both tubular layers), and etching away at least part of the first tubular core layer by exposing the layer to an etchant. Preferably less than all of the first tubular layer is etched away. According to one embodiment, the second core layer includes a rare earth element such as Er, Tm, Nd, Pm, Yb, or Sm, for example.
IPC 1-7
IPC 8 full level
C03B 37/012 (2006.01); C03B 37/014 (2006.01)
CPC (source: EP)
C03B 37/0124 (2013.01); C03B 37/01466 (2013.01); C03B 37/01473 (2013.01); C03B 2201/31 (2013.01); C03B 2201/34 (2013.01); C03B 2201/36 (2013.01)
Citation (search report)
See references of WO 0236510A2
Designated contracting state (EPC)
AT BE CH CY DE FR GB IT LI
DOCDB simple family (publication)
WO 0236510 A2 20020510; WO 0236510 A3 20020711; AU 9698001 A 20020515; EP 1337484 A2 20030827
DOCDB simple family (application)
US 0142464 W 20011005; AU 9698001 A 20011005; EP 01977897 A 20011005