FR2269725A1 - Optical fibre of rod and sheath type - has first layer of same compsn. as core and second layer of different compsn. - Google Patents

Optical fibre of rod and sheath type - has first layer of same compsn. as core and second layer of different compsn.

Info

Publication number
FR2269725A1
FR2269725A1 FR7415113A FR7415113A FR2269725A1 FR 2269725 A1 FR2269725 A1 FR 2269725A1 FR 7415113 A FR7415113 A FR 7415113A FR 7415113 A FR7415113 A FR 7415113A FR 2269725 A1 FR2269725 A1 FR 2269725A1
Authority
FR
France
Prior art keywords
layer
core
compsn
optical fibre
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7415113A
Other languages
French (fr)
Other versions
FR2269725B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR7415113A priority Critical patent/FR2269725A1/en
Publication of FR2269725A1 publication Critical patent/FR2269725A1/en
Application granted granted Critical
Publication of FR2269725B1 publication Critical patent/FR2269725B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/102—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type for infrared and ultraviolet radiation
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03694—Multiple layers differing in properties other than the refractive index, e.g. attenuation, diffusion, stress properties

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

Optical fibre of pref. circular section of the type having a core surrounded by a sheath the refractive index of which is less than that of the core such that the core transmits luminous wave by successive reflections at the common interface, is made by coating the core with a first layer of the same matl. as the core before applying the second layer. The quality of the reflecting surface does not depend on the quality of the surface finish of the core but on that obtd. by deposition of the first layer, and the adhesion between the two types of glass can be better controlled.
FR7415113A 1974-04-30 1974-04-30 Optical fibre of rod and sheath type - has first layer of same compsn. as core and second layer of different compsn. Granted FR2269725A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7415113A FR2269725A1 (en) 1974-04-30 1974-04-30 Optical fibre of rod and sheath type - has first layer of same compsn. as core and second layer of different compsn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7415113A FR2269725A1 (en) 1974-04-30 1974-04-30 Optical fibre of rod and sheath type - has first layer of same compsn. as core and second layer of different compsn.

Publications (2)

Publication Number Publication Date
FR2269725A1 true FR2269725A1 (en) 1975-11-28
FR2269725B1 FR2269725B1 (en) 1976-12-17

Family

ID=9138341

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7415113A Granted FR2269725A1 (en) 1974-04-30 1974-04-30 Optical fibre of rod and sheath type - has first layer of same compsn. as core and second layer of different compsn.

Country Status (1)

Country Link
FR (1) FR2269725A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394501A1 (en) * 1977-06-15 1979-01-12 Siemens Ag PROCESS FOR MANUFACTURING A LIGHT GUIDE SHAPED BY FIBERGLASS
FR2624621A1 (en) * 1987-12-10 1989-06-16 Comp Generale Electricite Process for manufacturing an optical fibre having a high fatigue strength
US5076825A (en) * 1982-03-01 1991-12-31 Dainichi-Nippon Cables, Ltd. Method of producing optical multiple fiber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394501A1 (en) * 1977-06-15 1979-01-12 Siemens Ag PROCESS FOR MANUFACTURING A LIGHT GUIDE SHAPED BY FIBERGLASS
US5076825A (en) * 1982-03-01 1991-12-31 Dainichi-Nippon Cables, Ltd. Method of producing optical multiple fiber
FR2624621A1 (en) * 1987-12-10 1989-06-16 Comp Generale Electricite Process for manufacturing an optical fibre having a high fatigue strength

Also Published As

Publication number Publication date
FR2269725B1 (en) 1976-12-17

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Legal Events

Date Code Title Description
ST Notification of lapse