GB2096788B - Single-polarization single-mode optical fibers - Google Patents

Single-polarization single-mode optical fibers

Info

Publication number
GB2096788B
GB2096788B GB8200751A GB8200751A GB2096788B GB 2096788 B GB2096788 B GB 2096788B GB 8200751 A GB8200751 A GB 8200751A GB 8200751 A GB8200751 A GB 8200751A GB 2096788 B GB2096788 B GB 2096788B
Authority
GB
United Kingdom
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
GB8200751A
Other versions
GB2096788A (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 GB2096788A publication Critical patent/GB2096788A/en
Application granted granted Critical
Publication of GB2096788B publication Critical patent/GB2096788B/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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (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.
GB8200751A 1981-01-17 1982-01-12 Single-polarization single-mode optical fibers Expired GB2096788B (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
GB2096788A GB2096788A (en) 1982-10-20
GB2096788B true GB2096788B (en) 1984-12-19

Family

ID=27276358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8200751A Expired GB2096788B (en) 1981-01-17 1982-01-12 Single-polarization single-mode optical fibers

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
EP0136306A4 (en) * 1983-02-25 1985-07-30 Univ Australian Optical fibres.
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
WO2009042347A1 (en) 2007-09-26 2009-04-02 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
DE3201342A1 (en) 1982-08-05
CA1168488A (en) 1984-06-05
GB2096788A (en) 1982-10-20
DE3201342C2 (en) 1983-11-17
FR2498339A1 (en) 1982-07-23
NL8200149A (en) 1982-08-16
FR2498339B1 (en) 1985-06-07
NL184924C (en) 1989-12-01
NL184924B (en) 1989-07-03

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020111