JPS57169719A - Molding method and device for optical fiber - Google Patents

Molding method and device for optical fiber

Info

Publication number
JPS57169719A
JPS57169719A JP5508981A JP5508981A JPS57169719A JP S57169719 A JPS57169719 A JP S57169719A JP 5508981 A JP5508981 A JP 5508981A JP 5508981 A JP5508981 A JP 5508981A JP S57169719 A JPS57169719 A JP S57169719A
Authority
JP
Japan
Prior art keywords
optical fibers
optical fiber
waist
taper
bundle
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.)
Pending
Application number
JP5508981A
Other languages
Japanese (ja)
Inventor
Hatsuo Takesawa
Makoto Ohashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5508981A priority Critical patent/JPS57169719A/en
Publication of JPS57169719A publication Critical patent/JPS57169719A/en
Pending 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2856—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers formed or shaped by thermal heating means, e.g. splitting, branching and/or combining elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To obtain a start coupler having a good characteristics, by bundling, arranging, and fixing plural optical fibers and heating and straining a part of this bundle to form a prescribed taper and heating locally the waist part of the taper to make the section round. CONSTITUTION:Optical fibers are taken out from an insertion vessel, and plural optical fibers 20 are bundled and arranged, and one end part of this bundle is clipped by a fixing member 14, and the part of optical fibers in the opposite side of a part where a taper should be formed is clipped by the other fixing member 13, and the third base 15 is so moved that the optical fiber bundle is inserted into a heater from the aperture part of the first heater 16. Since upper and lower end parts of the optical fiber bundle are expanded by heating, a spring device 18 is moved minutely to move a guide base 12 to the outside, and optical fibers are arranged, and the optical fiber bundle is strained. Thus, a part 21 formed in a prescribed taper ratio is obtained, and a waist part 22 of the part 21 is heated furthermore to make the sectional form of the waist part 22 into a perfect round. The waist part 22 is cut, and these waist parts 22 are so spliced that arrangement faces of sections are orthogonal to each other, thus forming a start coupler.
JP5508981A 1981-04-14 1981-04-14 Molding method and device for optical fiber Pending JPS57169719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5508981A JPS57169719A (en) 1981-04-14 1981-04-14 Molding method and device for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5508981A JPS57169719A (en) 1981-04-14 1981-04-14 Molding method and device for optical fiber

Publications (1)

Publication Number Publication Date
JPS57169719A true JPS57169719A (en) 1982-10-19

Family

ID=12988994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5508981A Pending JPS57169719A (en) 1981-04-14 1981-04-14 Molding method and device for optical fiber

Country Status (1)

Country Link
JP (1) JPS57169719A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195615A (en) * 1983-04-21 1984-11-06 Sumitomo Electric Ind Ltd Production of branch of optical fiber
JPS60154215A (en) * 1984-01-25 1985-08-13 Nippon Telegr & Teleph Corp <Ntt> Fiber type directional coupler
US5454057A (en) * 1994-03-15 1995-09-26 Fujitsu Limited Method for fabricating star coupler for interconnecting optical fibers and a star coupler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195615A (en) * 1983-04-21 1984-11-06 Sumitomo Electric Ind Ltd Production of branch of optical fiber
JPS60154215A (en) * 1984-01-25 1985-08-13 Nippon Telegr & Teleph Corp <Ntt> Fiber type directional coupler
US5454057A (en) * 1994-03-15 1995-09-26 Fujitsu Limited Method for fabricating star coupler for interconnecting optical fibers and a star coupler

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