JPS53137160A - Optical filter of directivity coupler type - Google Patents

Optical filter of directivity coupler type

Info

Publication number
JPS53137160A
JPS53137160A JP5128277A JP5128277A JPS53137160A JP S53137160 A JPS53137160 A JP S53137160A JP 5128277 A JP5128277 A JP 5128277A JP 5128277 A JP5128277 A JP 5128277A JP S53137160 A JPS53137160 A JP S53137160A
Authority
JP
Japan
Prior art keywords
optical filter
coupler type
directivity coupler
directivity
lengthes
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.)
Granted
Application number
JP5128277A
Other languages
Japanese (ja)
Other versions
JPS618405B2 (en
Inventor
Yutaka Sasaki
Kazuhiro Oguro
Tatsuya Kimura
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 JP5128277A priority Critical patent/JPS53137160A/en
Publication of JPS53137160A publication Critical patent/JPS53137160A/en
Publication of JPS618405B2 publication Critical patent/JPS618405B2/ja
Granted 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
    • G02B6/10—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
    • G02B6/12007—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 forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • 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
    • G02B6/293—Optical 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
    • G02B6/29331—Optical 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 evanescent wave coupling
    • G02B6/29332—Wavelength selective couplers, i.e. based on evanescent coupling between light guides, e.g. fused fibre couplers with transverse coupling between fibres having different propagation constant wavelength dependency

Abstract

PURPOSE:To produce a narrow band filter, which is fine and low in loss, which can be optically integrated with ease and which has a narrow half value width, by forming two or more directivity couplers of different coupling lengthes in a medium which is made of a transparent semiconductor or dielectric material.
JP5128277A 1977-05-06 1977-05-06 Optical filter of directivity coupler type Granted JPS53137160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5128277A JPS53137160A (en) 1977-05-06 1977-05-06 Optical filter of directivity coupler type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5128277A JPS53137160A (en) 1977-05-06 1977-05-06 Optical filter of directivity coupler type

Publications (2)

Publication Number Publication Date
JPS53137160A true JPS53137160A (en) 1978-11-30
JPS618405B2 JPS618405B2 (en) 1986-03-14

Family

ID=12882571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5128277A Granted JPS53137160A (en) 1977-05-06 1977-05-06 Optical filter of directivity coupler type

Country Status (1)

Country Link
JP (1) JPS53137160A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168605A (en) * 1980-03-31 1981-12-24 Hicks John Wilbur Jr Wavelength selective energy transmitting device
JPS57161706A (en) * 1981-03-07 1982-10-05 Licentia Gmbh Selectively dirctional connector
US4483583A (en) * 1981-03-07 1984-11-20 Licentia Patent-Verwaltungs-Gmbh Selective directional coupler for guided waves
JPS61248008A (en) * 1985-04-26 1986-11-05 Hitachi Ltd Optical multiplexer and demultiplexer
JPS62198806A (en) * 1986-02-24 1987-09-02 アメリカン　テレフオン　アンド　テレグラフ　カムパニ− Optical signal coupler
EP0256388A2 (en) * 1986-08-20 1988-02-24 Hitachi, Ltd. Optical multi/demultiplexer
JP2013174752A (en) * 2012-02-27 2013-09-05 Oki Electric Ind Co Ltd Wavelength selective path switching element
JP2015194585A (en) * 2014-03-31 2015-11-05 日本電信電話株式会社 optical coupling structure
EP3555680A4 (en) * 2016-12-19 2020-08-05 Lawrence Livermore National Security, LLC Wavelength selective transfer of optical energy
CN113933932A (en) * 2021-09-30 2022-01-14 中航光电科技股份有限公司 Multilayer waveguide route switching design method based on directional coupling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4909584A (en) * 1986-12-19 1990-03-20 Hitachi, Ltd. Optical multi/demultiplexer and optical module using the same

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56168605A (en) * 1980-03-31 1981-12-24 Hicks John Wilbur Jr Wavelength selective energy transmitting device
JPS57161706A (en) * 1981-03-07 1982-10-05 Licentia Gmbh Selectively dirctional connector
US4483583A (en) * 1981-03-07 1984-11-20 Licentia Patent-Verwaltungs-Gmbh Selective directional coupler for guided waves
JPH0522209B2 (en) * 1981-03-07 1993-03-26 Aa Enu Tee Natsuharihitentehiniiku Gmbh
JPS61248008A (en) * 1985-04-26 1986-11-05 Hitachi Ltd Optical multiplexer and demultiplexer
JPS62198806A (en) * 1986-02-24 1987-09-02 アメリカン　テレフオン　アンド　テレグラフ　カムパニ− Optical signal coupler
EP0256388A2 (en) * 1986-08-20 1988-02-24 Hitachi, Ltd. Optical multi/demultiplexer
JP2013174752A (en) * 2012-02-27 2013-09-05 Oki Electric Ind Co Ltd Wavelength selective path switching element
JP2015194585A (en) * 2014-03-31 2015-11-05 日本電信電話株式会社 optical coupling structure
EP3555680A4 (en) * 2016-12-19 2020-08-05 Lawrence Livermore National Security, LLC Wavelength selective transfer of optical energy
US11460639B2 (en) 2016-12-19 2022-10-04 Lawrence Livermore National Security, Llc Wavelength selective transfer of optical energy
CN113933932A (en) * 2021-09-30 2022-01-14 中航光电科技股份有限公司 Multilayer waveguide route switching design method based on directional coupling

Also Published As

Publication number Publication date
JPS618405B2 (en) 1986-03-14

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