JPS5666803A - Photodirectional coupler - Google Patents

Photodirectional coupler

Info

Publication number
JPS5666803A
JPS5666803A JP14259379A JP14259379A JPS5666803A JP S5666803 A JPS5666803 A JP S5666803A JP 14259379 A JP14259379 A JP 14259379A JP 14259379 A JP14259379 A JP 14259379A JP S5666803 A JPS5666803 A JP S5666803A
Authority
JP
Japan
Prior art keywords
photocoupling
holes
lambda
photodirectional
coupler
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
JP14259379A
Other languages
Japanese (ja)
Inventor
Shigefumi Masuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14259379A priority Critical patent/JPS5666803A/en
Publication of JPS5666803A publication Critical patent/JPS5666803A/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
    • G02B6/2821—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 using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2826—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 using lateral coupling between contiguous fibres to split or combine optical signals using mechanical machining means for shaping of the couplers, e.g. grinding or polishing
    • 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
    • G02B6/2821—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 using lateral coupling between contiguous fibres to split or combine optical signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To improve design characteristic and make handling easy by uniformly reducing the diameter of the clads of two optical single-mode fibers over the length (n) times the wavelength lambda, joining said parts in a parallel shape, and providing photocoupling holes at predetermined intervals in the coupled part thereby constituting a photodirectional coupler. CONSTITUTION:The parts 2, 4 of reduced clads obtained by etching two single- mode optical fibers 1, 3 with fluorine are joined by means of an adhesive agent, and are housed in the groove 10 of a dielectric substrate 9, further they are set by a matching agent. The joined part 6 is enclosed by resist and photocoupling holes 7 are made therein by exposure techniques. The intervals of the photocoupling holes 7 are so determined as to become l=lambda/4+ or -2nlambda. Here, lambda is the characteristic wavelength of the optical single-mode fiber 1. The photoelectric power distribution in the radial direction of this fiber for light propagation assumes a circle. Thereby, the photodirectional coupler of superior design characteristic and easy handling are obtained.
JP14259379A 1979-11-02 1979-11-02 Photodirectional coupler Pending JPS5666803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14259379A JPS5666803A (en) 1979-11-02 1979-11-02 Photodirectional coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14259379A JPS5666803A (en) 1979-11-02 1979-11-02 Photodirectional coupler

Publications (1)

Publication Number Publication Date
JPS5666803A true JPS5666803A (en) 1981-06-05

Family

ID=15318907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14259379A Pending JPS5666803A (en) 1979-11-02 1979-11-02 Photodirectional coupler

Country Status (1)

Country Link
JP (1) JPS5666803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62118210U (en) * 1986-01-20 1987-07-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62118210U (en) * 1986-01-20 1987-07-27
JPH0538325Y2 (en) * 1986-01-20 1993-09-28

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