GB2313330A - Coating optical fibres - Google Patents

Coating optical fibres Download PDF

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Publication number
GB2313330A
GB2313330A GB9610901A GB9610901A GB2313330A GB 2313330 A GB2313330 A GB 2313330A GB 9610901 A GB9610901 A GB 9610901A GB 9610901 A GB9610901 A GB 9610901A GB 2313330 A GB2313330 A GB 2313330A
Authority
GB
United Kingdom
Prior art keywords
optical fibre
optical fibres
radiation
coating
fibre
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.)
Withdrawn
Application number
GB9610901A
Other versions
GB9610901D0 (en
Inventor
Ian Peter Alcock
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.)
PerkinElmer Ltd
Original Assignee
PerkinElmer Ltd
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 PerkinElmer Ltd filed Critical PerkinElmer Ltd
Priority to GB9610901A priority Critical patent/GB2313330A/en
Publication of GB9610901D0 publication Critical patent/GB9610901D0/en
Publication of GB2313330A publication Critical patent/GB2313330A/en
Withdrawn legal-status Critical Current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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • C03C25/1061—Inorganic coatings
    • C03C25/1062—Carbon
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • C03C25/1061—Inorganic coatings
    • C03C25/1063—Metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

An optical fibre for use in carrying out spectral analysis is is provided with a protective coating which is formed from a material which is substantially non-absorbent to radiation in the infrared range. This material may be a metal such as aluminium, gold or copper, or carbon or an organic material such as a fluoropolymer.

Description

IMPROVEMENTS IN OR RELATING To THE COATING OF OPTICAL FIBRES This invention relates to the coating of optical fibres.
Optical fibres are used in conjunction with apparatus for carrying out spectroscopic analysis of samples to enable remote analysis of a sample to be undertaken. The optical fibre is used to conduct radiation, typically infrared radiation, from a source in the analysing apparatus to the location of a sample under investigation from where the radiation is reflected to detecting equipment. As is known optical fibres generally comprise a core portion within which the majority of the radiation typically propagates and an outer cladding and a protective coating. The core and cladding are substantially non-absorbing, i.e.
they are transparent to the radiation propagating therein. Conventionally, optical fibres for use in spectroscopic analysis have been formed with a polymer protective coating which is organic in character. We have discovered that this can present a problem in that radiation in the infrared range, typically in the range 1 to 2 microns, in effect samples the material of the coating as it propagates along the fibre when the fibre is stressed, either intentionally or unintentionally. As a consequence the spectrum detected from the sample under investigation includes spectral characteristics of the fibre coating. This is undesirable.
Thus, our proposal is to provide an optical fibre for use in carrying out spectral analysis in which the coating of the fibre is formed from suitable inorganic materials such as the metal or an organic material such as carbon or a fluoropolymer, which is substantially non-absorbent to radiation in the infrared range.
We have found that a suitable metal for use in coating such an optical fibre is aluminium. Other possible metals which can be used are gold and copper.
The coatings can be applied to the core of the fibre by any suitable coating technique used to coat optical fibres.

Claims (5)

CLAIMS:
1. An optical fibre for use in carrying out spectral analysis, wherein the fibre is provided with a protective coating which is formed from a material which is substantially non-absorbent to radiation in the infra-red range.
2. An optical fibre according to claim 1, wherein the material is an inorganic material such as a metal.
3. An optical fibre according to claim 2, wherein the metal is aluminium.
4. An optical fibre according to claim 1, wherein the material is an organic material such as carbon or a fluoropolymer.
5. An optical fibre substantially as hereinbefore described.
GB9610901A 1996-05-24 1996-05-24 Coating optical fibres Withdrawn GB2313330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9610901A GB2313330A (en) 1996-05-24 1996-05-24 Coating optical fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9610901A GB2313330A (en) 1996-05-24 1996-05-24 Coating optical fibres

Publications (2)

Publication Number Publication Date
GB9610901D0 GB9610901D0 (en) 1996-07-31
GB2313330A true GB2313330A (en) 1997-11-26

Family

ID=10794252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9610901A Withdrawn GB2313330A (en) 1996-05-24 1996-05-24 Coating optical fibres

Country Status (1)

Country Link
GB (1) GB2313330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871898A1 (en) * 2004-06-18 2005-12-23 Alcatel Sa FIBER OPTIC COMPONENT AND OPTICAL FIBER THEREFOR

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076575A1 (en) * 1981-09-24 1983-04-13 Hughes Aircraft Company Optical fiber insensitive to temperature variations
GB2158263A (en) * 1984-04-27 1985-11-06 Pirelli Cavi Spa Optical fibre
GB2236331A (en) * 1989-05-31 1991-04-03 Stc Plc Carbon coating of glass fibres
US5237638A (en) * 1991-03-14 1993-08-17 Pdt Systems Silicone optical waveguide
GB2288469A (en) * 1994-04-15 1995-10-18 Hitachi Cable Optical hollow waveguide, its fabrication and laser transmission apparatus using it

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076575A1 (en) * 1981-09-24 1983-04-13 Hughes Aircraft Company Optical fiber insensitive to temperature variations
GB2158263A (en) * 1984-04-27 1985-11-06 Pirelli Cavi Spa Optical fibre
GB2236331A (en) * 1989-05-31 1991-04-03 Stc Plc Carbon coating of glass fibres
US5237638A (en) * 1991-03-14 1993-08-17 Pdt Systems Silicone optical waveguide
GB2288469A (en) * 1994-04-15 1995-10-18 Hitachi Cable Optical hollow waveguide, its fabrication and laser transmission apparatus using it

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871898A1 (en) * 2004-06-18 2005-12-23 Alcatel Sa FIBER OPTIC COMPONENT AND OPTICAL FIBER THEREFOR
EP1609769A1 (en) * 2004-06-18 2005-12-28 Draka Comteq B.V. Component with optical fiber and associated optical fiber
US7308179B2 (en) 2004-06-18 2007-12-11 Draka Comteq B.V. Component with optical fiber and associated optical fiber
US7477822B2 (en) 2004-06-18 2009-01-13 Draka Comteq B.V. Component with optical fiber and associated optical fiber

Also Published As

Publication number Publication date
GB9610901D0 (en) 1996-07-31

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Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)