JPS53108443A - Directional optical coupler - Google Patents

Directional optical coupler

Info

Publication number
JPS53108443A
JPS53108443A JP2279577A JP2279577A JPS53108443A JP S53108443 A JPS53108443 A JP S53108443A JP 2279577 A JP2279577 A JP 2279577A JP 2279577 A JP2279577 A JP 2279577A JP S53108443 A JPS53108443 A JP S53108443A
Authority
JP
Japan
Prior art keywords
optical coupler
directional optical
optical fiber
production cost
directional 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
JP2279577A
Other languages
Japanese (ja)
Inventor
Hiroyuki Fujita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2279577A priority Critical patent/JPS53108443A/en
Publication of JPS53108443A publication Critical patent/JPS53108443A/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
    • G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
    • 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
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
    • 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
    • G02B6/2852—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 tapping light guides arranged sidewardly, e.g. in a non-parallel relationship with respect to the bus light guides (light extraction or launching through cladding, with or without surface discontinuities, bent structures)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To lower production cost of directional coupler by making transmission efficiencies in different direction differ noticeably by having core diameters of optical fiber continuously tapered.
JP2279577A 1977-03-04 1977-03-04 Directional optical coupler Pending JPS53108443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2279577A JPS53108443A (en) 1977-03-04 1977-03-04 Directional optical coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2279577A JPS53108443A (en) 1977-03-04 1977-03-04 Directional optical coupler

Publications (1)

Publication Number Publication Date
JPS53108443A true JPS53108443A (en) 1978-09-21

Family

ID=12092606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2279577A Pending JPS53108443A (en) 1977-03-04 1977-03-04 Directional optical coupler

Country Status (1)

Country Link
JP (1) JPS53108443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415227A (en) * 1980-04-02 1983-11-15 Licentia Patent-Verwaltungs-Gmbh Transition between two single mode optical waveguides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415227A (en) * 1980-04-02 1983-11-15 Licentia Patent-Verwaltungs-Gmbh Transition between two single mode optical waveguides

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Legal Events

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