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1. WO2018005584 - METHOD OF MAKING OPTICAL FIBER PREFORM WITH PRESSED SOOT AND RODS

Publication Number WO/2018/005584
Publication Date 04.01.2018
International Application No. PCT/US2017/039628
International Filing Date 28.06.2017
IPC
C03B 37/012 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
37Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
01Manufacture of glass fibres or filaments
012Manufacture of preforms for drawing fibres or filaments
CPC
C03B 2201/06
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
2201Type of glass produced
06Doped silica-based glasses
C03B 2201/10
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
2201Type of glass produced
06Doped silica-based glasses
08doped with boron or fluorine or other refractive index decreasing dopant
10doped with boron
C03B 2203/14
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
2203Fibre product details, e.g. structure, shape
10Internal structure or shape details
14Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
C03B 2203/30
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
2203Fibre product details, e.g. structure, shape
30Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
C03B 2203/31
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
2203Fibre product details, e.g. structure, shape
30Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
31by use of stress-imparting rods, e.g. by insertion
C03B 2203/34
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
2203Fibre product details, e.g. structure, shape
34Plural core other than bundles, e.g. double core
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • BOUGHTON, Daniel Robert
  • FAGAN, James Gerard
  • HUBBARD, JR., Larry Gleason
  • WANG, Ji
Agents
  • SHORT, Svetlana Z.
Priority Data
62/356,95430.06.2016US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF MAKING OPTICAL FIBER PREFORM WITH PRESSED SOOT AND RODS
(FR) PROCÉDÉ DE FABRICATION D’UNE PRÉFORME DE FIBRE OPTIQUE AVEC DE LA SUIE COMPRIMÉE ET DES TIGES
Abstract
(EN)
According to some embodiments method for making an optical fiber preform comprises the steps of: (i) placing a plurality of rods (115B) with an outer surface having a coefficient of friction 0.02 (FR)
La présente invention décrit un procédé de fabrication d’une préforme de fibre optique comprenant les étapes de : (i) mise en place d’une pluralité de tiges (115B) ayant une surface externe présentant un coefficient de frottement de 0,02 < COF < 0,3 dans une cavité interne (108) d’un appareil ; (ii) mise en place d’un matériau en verre sous forme de particules dans la cavité interne (108) entre les tiges (115B) et une paroi interne de la cavité de moule (108) ; et (iii) application de pression entre le matériau en verre sous forme de particules pour comprimer le matériau en verre sous forme de particules contre la pluralité des tiges (115B). Lorsque les tiges (115B) sont retirées, la préforme de fibre présente des vides ayant un lissé et une uniformité de surface élevés.
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