JPS5595907A - Photo branching filter - Google Patents

Photo branching filter

Info

Publication number
JPS5595907A
JPS5595907A JP356779A JP356779A JPS5595907A JP S5595907 A JPS5595907 A JP S5595907A JP 356779 A JP356779 A JP 356779A JP 356779 A JP356779 A JP 356779A JP S5595907 A JPS5595907 A JP S5595907A
Authority
JP
Japan
Prior art keywords
light
light signal
optical
optical fibers
enters
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
JP356779A
Other languages
English (en)
Inventor
Koichi Aoyama
Junichiro Minowa
Ikutaro Kobayashi
Tetsuya Miki
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
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP356779A priority Critical patent/JPS5595907A/ja
Publication of JPS5595907A publication Critical patent/JPS5595907A/ja
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29305Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
    • G02B6/2931Diffractive element operating in reflection
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
JP356779A 1979-01-16 1979-01-16 Photo branching filter Pending JPS5595907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP356779A JPS5595907A (en) 1979-01-16 1979-01-16 Photo branching filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP356779A JPS5595907A (en) 1979-01-16 1979-01-16 Photo branching filter

Publications (1)

Publication Number Publication Date
JPS5595907A true JPS5595907A (en) 1980-07-21

Family

ID=11561003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP356779A Pending JPS5595907A (en) 1979-01-16 1979-01-16 Photo branching filter

Country Status (1)

Country Link
JP (1) JPS5595907A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073300A2 (de) * 1981-08-27 1983-03-09 Philips Kommunikations Industrie AG Vorrichtung zum getrennten Auskoppeln von optischen Signalen verschiedener Wellenlängen
US4387955A (en) * 1981-02-03 1983-06-14 The United States Of America As Represented By The Secretary Of The Air Force Holographic reflective grating multiplexer/demultiplexer
FR2566139A1 (fr) * 1984-06-13 1985-12-20 Lignes Telegraph Telephon Dispositif de distribution d'energie lumineuse et son utilisation a la commutation optique

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53106061A (en) * 1977-02-26 1978-09-14 Nippon Telegr & Teleph Corp <Ntt> Optical branching filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53106061A (en) * 1977-02-26 1978-09-14 Nippon Telegr & Teleph Corp <Ntt> Optical branching filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387955A (en) * 1981-02-03 1983-06-14 The United States Of America As Represented By The Secretary Of The Air Force Holographic reflective grating multiplexer/demultiplexer
EP0073300A2 (de) * 1981-08-27 1983-03-09 Philips Kommunikations Industrie AG Vorrichtung zum getrennten Auskoppeln von optischen Signalen verschiedener Wellenlängen
FR2566139A1 (fr) * 1984-06-13 1985-12-20 Lignes Telegraph Telephon Dispositif de distribution d'energie lumineuse et son utilisation a la commutation optique

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