FR2498339B1 - IMPROVEMENTS ON SINGLE-MODE OPTICAL FIBERS AND THEIR MANUFACTURING METHOD - Google Patents

IMPROVEMENTS ON SINGLE-MODE OPTICAL FIBERS AND THEIR MANUFACTURING METHOD

Info

Publication number
FR2498339B1
FR2498339B1 FR8200581A FR8200581A FR2498339B1 FR 2498339 B1 FR2498339 B1 FR 2498339B1 FR 8200581 A FR8200581 A FR 8200581A FR 8200581 A FR8200581 A FR 8200581A FR 2498339 B1 FR2498339 B1 FR 2498339B1
Authority
FR
France
Prior art keywords
silica glass
clad
stress applying
applying members
core
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.)
Expired
Application number
FR8200581A
Other languages
French (fr)
Other versions
FR2498339A1 (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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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
Priority claimed from JP56004587A external-priority patent/JPS57123836A/en
Priority claimed from JP56197634A external-priority patent/JPS58100101A/en
Priority claimed from JP56200044A external-priority patent/JPS58104035A/en
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of FR2498339A1 publication Critical patent/FR2498339A1/en
Application granted granted Critical
Publication of FR2498339B1 publication Critical patent/FR2498339B1/en
Expired legal-status Critical Current

Links

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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02709—Polarisation maintaining fibres, e.g. PM, PANDA, bi-refringent optical fibres
    • 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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C03B37/01217—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of polarisation-maintaining optical fibres
    • 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
    • G02B6/02042—Multicore optical fibres
    • 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
    • G02B6/105—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type having optical polarisation effects
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
    • C03B2203/31—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres by use of stress-imparting rods, e.g. by insertion
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Compositions (AREA)

Abstract

A single-polarization single-mode optical fiber comprises a core made of silica glass, a clad surrounding the core and made of silica glass having a smaller index of refraction than the glass comprising the core, a pair of stress applying members symmetrically disposed on the clad and made of silica glass having different thermal expansion coefficient from that of the clad, spacers interposed between the stress applying members and made of silica glass having substantially the same thermal expansion coefficient as the clad, and a jacket surrounding the spacers, stress applying members. The jacket is also made of silica glass and has a smaller expansion coefficient than the stress applying members. The optical fiber of this invention has an excellent polarization preserving characteristic, low loss, long length, and stable characteristics.
FR8200581A 1981-01-17 1982-01-15 IMPROVEMENTS ON SINGLE-MODE OPTICAL FIBERS AND THEIR MANUFACTURING METHOD Expired FR2498339B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP56004587A JPS57123836A (en) 1981-01-17 1981-01-17 Preparation optical fiber having single mode of internal stress and double refraction
JP56197634A JPS58100101A (en) 1981-12-10 1981-12-10 Single-polarization single-mode optical fiber with internal stress application part
JP56200044A JPS58104035A (en) 1981-12-14 1981-12-14 Preparation of optical fiber having single polarization diversity and single mode

Publications (2)

Publication Number Publication Date
FR2498339A1 FR2498339A1 (en) 1982-07-23
FR2498339B1 true FR2498339B1 (en) 1985-06-07

Family

ID=27276358

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8200581A Expired FR2498339B1 (en) 1981-01-17 1982-01-15 IMPROVEMENTS ON SINGLE-MODE OPTICAL FIBERS AND THEIR MANUFACTURING METHOD

Country Status (5)

Country Link
CA (1) CA1168488A (en)
DE (1) DE3201342C2 (en)
FR (1) FR2498339B1 (en)
GB (1) GB2096788B (en)
NL (1) NL184924C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1177297A (en) * 1981-03-30 1984-11-06 Michael G. Blankenship Polarization retaining single-mode optical fibers and methods of making
JPS5835503A (en) * 1981-08-27 1983-03-02 Nippon Telegr & Teleph Corp <Ntt> Single lineary polarizing optical fiber of zero polarization scattering
JPS60501183A (en) * 1983-02-25 1985-07-25 ジ・オ−ストラリアン・ナシヨナル・ユニバ−シテイ optical fiber
US4561871A (en) * 1983-12-27 1985-12-31 Corning Glass Works Method of making polarization preserving optical fiber
KR100274807B1 (en) * 1998-06-24 2000-12-15 김효근 Optical fiber and bragg grating filter using the same
US7280730B2 (en) 2004-01-16 2007-10-09 Imra America, Inc. Large core holey fibers
WO2005083483A1 (en) * 2004-02-27 2005-09-09 Danmarks Tekniske Universitet (Dtu) Birefringent optical fibre
US7787729B2 (en) 2005-05-20 2010-08-31 Imra America, Inc. Single mode propagation in fibers and rods with large leakage channels
EP2201415B1 (en) 2007-09-26 2019-07-03 Imra America, Inc. Glass large-core optical fibers
DE102014224964B4 (en) 2014-05-12 2023-06-01 J-Fiber Gmbh Process for manufacturing a polarization-maintaining optical fiber, preform for manufacturing a polarization-maintaining optical fiber, and polarization-maintaining optical fiber
CN106646730B (en) * 2016-11-23 2022-10-25 华南理工大学 Vortex optical fiber for generating and tuning orbital angular momentum

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278283A (en) * 1963-04-12 1966-10-11 American Optical Corp Method of making light-conducting optical component
US3678328A (en) * 1968-11-01 1972-07-18 Bendix Corp Channel multiplier assembly and method of manufacture thereof
DE2735312C2 (en) * 1977-08-05 1982-06-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Single mode light guide
NL193330C (en) * 1978-01-13 1999-06-02 Western Electric Co Optical waveguide and method for its manufacture.
DE3035153A1 (en) * 1980-09-18 1982-04-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Optical fibre linear polarisation stabilisation - uses press applied radially to outside of optical fibre from opposite sides

Also Published As

Publication number Publication date
DE3201342C2 (en) 1983-11-17
GB2096788A (en) 1982-10-20
CA1168488A (en) 1984-06-05
NL8200149A (en) 1982-08-16
GB2096788B (en) 1984-12-19
FR2498339A1 (en) 1982-07-23
NL184924B (en) 1989-07-03
NL184924C (en) 1989-12-01
DE3201342A1 (en) 1982-08-05

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