JPS57198425A - Optical branching and coupling circuit - Google Patents

Optical branching and coupling circuit

Info

Publication number
JPS57198425A
JPS57198425A JP8405681A JP8405681A JPS57198425A JP S57198425 A JPS57198425 A JP S57198425A JP 8405681 A JP8405681 A JP 8405681A JP 8405681 A JP8405681 A JP 8405681A JP S57198425 A JPS57198425 A JP S57198425A
Authority
JP
Japan
Prior art keywords
optical fiber
transmitted
coupled
light
lens
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
JP8405681A
Other languages
Japanese (ja)
Inventor
Teruhito Matsui
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8405681A priority Critical patent/JPS57198425A/en
Publication of JPS57198425A publication Critical patent/JPS57198425A/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
    • G02B6/2817—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 reflective elements 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 keep a by-pass level accurately even if optical fiber length is changed by combining a pair of optical fibers having collimating lenses with a pair of ones having lenses provided with a beam splitter and a reflector. CONSTITUTION:Light projected from an optical fiber 1 is transmitted to a beam splitter film 4b fitted to a deffraction index distribution type lens 4 at a fixed rate and a half of the transmitted light is reflected by a reflector 8a of a cubic prism 8, passed through a lens 5 and coupled with an optical fiber 2, and the remaining half light is transmitted into the prism 8, made fall upon a lens 7, reflected by a reflecting film 7a, also reflected by the reflecting film 8a of the prism 8, and then coupled and transmitted to an optical film 3 through a lens 6. A half of the light projected from the optical fiber 2 is coupled and transmitted to the optical fiber 3 and the remaining half light is coupled with the optical fiber 1 and a part of the remaining half light is also coupled and transmitted to the optical fiber 3.
JP8405681A 1981-06-01 1981-06-01 Optical branching and coupling circuit Pending JPS57198425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8405681A JPS57198425A (en) 1981-06-01 1981-06-01 Optical branching and coupling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8405681A JPS57198425A (en) 1981-06-01 1981-06-01 Optical branching and coupling circuit

Publications (1)

Publication Number Publication Date
JPS57198425A true JPS57198425A (en) 1982-12-06

Family

ID=13819832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8405681A Pending JPS57198425A (en) 1981-06-01 1981-06-01 Optical branching and coupling circuit

Country Status (1)

Country Link
JP (1) JPS57198425A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6836015B2 (en) 2003-05-02 2004-12-28 International Business Machines Corporation Optical assemblies for transmitting and manipulating optical beams
US6922294B2 (en) 2003-05-02 2005-07-26 International Business Machines Corporation Optical communication assembly
WO2013019176A1 (en) * 2011-07-29 2013-02-07 Hewlett-Packard Development Company, L.P. Optical power splitters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6836015B2 (en) 2003-05-02 2004-12-28 International Business Machines Corporation Optical assemblies for transmitting and manipulating optical beams
US6922294B2 (en) 2003-05-02 2005-07-26 International Business Machines Corporation Optical communication assembly
US8089133B2 (en) 2003-05-02 2012-01-03 International Business Machines Corporation Optical assemblies for transmitting and manipulating optical beams
WO2013019176A1 (en) * 2011-07-29 2013-02-07 Hewlett-Packard Development Company, L.P. Optical power splitters

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