CA2436579A1 - A process for making rare earth doped optical fibre - Google Patents

A process for making rare earth doped optical fibre Download PDF

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Publication number
CA2436579A1
CA2436579A1 CA002436579A CA2436579A CA2436579A1 CA 2436579 A1 CA2436579 A1 CA 2436579A1 CA 002436579 A CA002436579 A CA 002436579A CA 2436579 A CA2436579 A CA 2436579A CA 2436579 A1 CA2436579 A1 CA 2436579A1
Authority
CA
Canada
Prior art keywords
core
solution
rare earth
earth doped
fibres
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
CA002436579A
Other languages
French (fr)
Other versions
CA2436579C (en
Inventor
Tarun Bandyopadhyay
Ranjan Sen
Shyamal Kumar Bhadra
Kamal Dasgupta
Mukul Chandra Paul
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.)
MINISTRY OF INFORMATION TECHNOLOGY
Council of Scientific and Industrial Research CSIR
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2436579A1 publication Critical patent/CA2436579A1/en
Application granted granted Critical
Publication of CA2436579C publication Critical patent/CA2436579C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
    • C03B37/01838—Reactant delivery systems, e.g. reactant deposition burners for delivering and depositing additional reactants as liquids or solutions, e.g. for solution doping of the deposited glass
    • 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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
    • 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
    • C03B37/01853—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
    • C03B2201/28—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with phosphorus
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
    • C03B2201/36—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers doped with rare earth metals and aluminium, e.g. Er-Al co-doped
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lasers (AREA)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

The present invention provides an improved process for making rare earth doped preforms and fibres by a combination of MCVD technique and solution doping method, said method comprising developing matched or depressed clad structure inside a silica glass substrate tube followed by deposition of unsintered particulate layer containing GeO2 and P2O5 for formation of the core and solution doping by soaking the porous soot layer into an alcoholic/aqueous solution of RE-salts containing co-dopants like AlCl3 / Al(NO3)3 in definite proportion, controlling the porosity of the soot, dipping period, strength of the solution and the proportion of the codopants to achieve the desired RE ion concentration in the core and minimise the core clad boundary defects and followed by drying, oxidation, dehydration and sintering of the RE containing porous deposit and collapsing at a high temperature to produce the preform and overladding with silica tubes of suitable dimensions and fibre drawing to produce fibres.
CA002436579A 2001-02-02 2001-02-02 A process for making rare earth doped optical fibre Expired - Lifetime CA2436579C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2001/000014 WO2002060830A1 (en) 2001-02-02 2001-02-02 A process for making rare earth doped optical fibre

Publications (2)

Publication Number Publication Date
CA2436579A1 true CA2436579A1 (en) 2002-08-08
CA2436579C CA2436579C (en) 2006-09-26

Family

ID=11076302

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002436579A Expired - Lifetime CA2436579C (en) 2001-02-02 2001-02-02 A process for making rare earth doped optical fibre

Country Status (6)

Country Link
KR (1) KR100655480B1 (en)
CN (1) CN1274618C (en)
AU (1) AU2001242728B2 (en)
CA (1) CA2436579C (en)
GB (1) GB2388367B (en)
WO (1) WO2002060830A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100379694C (en) * 2002-12-16 2008-04-09 菲特尔美国公司 Manufacture of optical fiber by using high pressure doping

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040139765A1 (en) * 2003-01-16 2004-07-22 Sumitomo Electric Industries, Ltd. Method of producing optical fiber preform, and optical fiber preform and optical fiber produced with the method
CN101479205B (en) * 2006-06-26 2013-02-20 住友电气工业株式会社 Process for producing optical fiber base, process for producing optical fiber, and optical fiber
JP5018492B2 (en) * 2008-01-15 2012-09-05 住友電気工業株式会社 Preform manufacturing method
FR2939522B1 (en) * 2008-12-08 2011-02-11 Draka Comteq France OPTICAL FIBER AMPLIFIER RESISTANT TO IONIZING RADIATION
CN102086089A (en) * 2010-12-27 2011-06-08 富通集团有限公司 Method for manufacturing rare-earth-doped fiber precast rod
CN102515501B (en) * 2011-11-29 2014-04-30 富通集团有限公司 Method for manufacturing doped optical fibre preform by MCVD (modified chemical vapour deposition)
CN104058587B (en) * 2014-07-14 2016-06-22 富通集团有限公司 A kind of rare earth doped optical fibre prefabricated rods and preparation method thereof
CN106966581A (en) * 2017-05-18 2017-07-21 江苏亨通光导新材料有限公司 A kind of preform and preparation method thereof
CN110467342A (en) * 2019-08-15 2019-11-19 武汉长进激光技术有限公司 A kind of ultra wide band gain Er-doped fiber and preparation method thereof
CN110467343A (en) * 2019-08-23 2019-11-19 武汉长进激光技术有限公司 A kind of nano-porous glass material hydroxyl-removal sintering method
CN110510864A (en) * 2019-09-11 2019-11-29 烽火通信科技股份有限公司 The preparation method and preform of highly doped rare-earth-doped fiber precast rod
US11673831B2 (en) * 2019-10-01 2023-06-13 The Hong Kong University Of Science And Technology Method for preparing optical fibers with high-particle-coated porous polymeric outer coating layers
CN111847864A (en) * 2020-06-16 2020-10-30 武汉长进激光技术有限公司 C-band expanded broadband gain erbium-doped optical fiber and preparation method thereof
CN115448590A (en) * 2022-08-31 2022-12-09 长飞光纤光缆股份有限公司 Method for preparing rare earth doped optical fiber preform by in-tube method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU625144B2 (en) * 1989-10-31 1992-07-02 Fujitsu Limited Production method for optical fiber base material
US5005175A (en) 1989-11-27 1991-04-02 At&T Bell Laboratories Erbium-doped fiber amplifier
EP0466932B1 (en) * 1990-02-05 1995-01-18 The Furukawa Electric Co., Ltd. Quartz glass doped with rare earth element and production thereof
JP2766420B2 (en) 1992-04-07 1998-06-18 株式会社フジクラ Method for producing erbium-doped quartz
GB2273389B (en) 1992-12-14 1996-07-17 Pirelli Cavi Spa Rare earth doped optical fibre amplifiers
JP3773575B2 (en) 1996-01-12 2006-05-10 富士通株式会社 Doped fiber, splicing method thereof, and optical amplifier
US6578387B2 (en) * 1999-04-09 2003-06-17 Fitel Usa Corp. Method of fabrication of rare earth doped preforms for optical fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100379694C (en) * 2002-12-16 2008-04-09 菲特尔美国公司 Manufacture of optical fiber by using high pressure doping

Also Published As

Publication number Publication date
GB0318455D0 (en) 2003-09-10
CA2436579C (en) 2006-09-26
GB2388367B (en) 2005-05-18
GB2388367A (en) 2003-11-12
KR100655480B1 (en) 2006-12-08
CN1274618C (en) 2006-09-13
AU2001242728B2 (en) 2007-05-10
WO2002060830A8 (en) 2003-11-20
WO2002060830A1 (en) 2002-08-08
KR20040034595A (en) 2004-04-28
CN1500069A (en) 2004-05-26

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