JPS55130504A - Optical branching circuit - Google Patents

Optical branching circuit

Info

Publication number
JPS55130504A
JPS55130504A JP3790779A JP3790779A JPS55130504A JP S55130504 A JPS55130504 A JP S55130504A JP 3790779 A JP3790779 A JP 3790779A JP 3790779 A JP3790779 A JP 3790779A JP S55130504 A JPS55130504 A JP S55130504A
Authority
JP
Japan
Prior art keywords
optical
plane
prisms
bonded
optical axis
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
JP3790779A
Other languages
Japanese (ja)
Inventor
Fumio Mita
Shoichi Kurita
Seiji Terai
Toshio Ooya
Michitoshi Nakaya
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 JP3790779A priority Critical patent/JPS55130504A/en
Publication of JPS55130504A publication Critical patent/JPS55130504A/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
    • G02B6/293—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
    • G02B6/29346—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 wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • G02B6/2937—In line lens-filtering-lens devices, i.e. elements arranged along a line and mountable in a cylindrical package for compactness, e.g. 3- port device with GRIN lenses sandwiching a single filter operating at normal incidence in a tubular package

Landscapes

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

Abstract

PURPOSE:To simplify the structure of an optical branching circuit and reduce the circuit size by using polyhedral prism. CONSTITUTION:Polyhedral prisms 1-4 are prepared having optical film surfaces 5-7 with branching characteristics, reflective surfaces 8-10, incident end plane surface 11, emergent end plane surfaces 12-15 and plane surfaces 21-23 other than reflective surfaces. Prisms 1-4 are bonded and arranged on plane substrate 24 made of hard glass, resin or the like so that common incident direction 16 becomes a common optical axis, and surfaces 5-7 are closely contacted to surfaces 21-23, respectively. Optical coupling convex lenses 25-29 are closely bonded to surfaces 11-15 in accord with the optical axis. Thus, transmitted light lambda1-lambda4 is emitted in predetermined emergent directions 17-20.
JP3790779A 1979-03-30 1979-03-30 Optical branching circuit Pending JPS55130504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3790779A JPS55130504A (en) 1979-03-30 1979-03-30 Optical branching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3790779A JPS55130504A (en) 1979-03-30 1979-03-30 Optical branching circuit

Publications (1)

Publication Number Publication Date
JPS55130504A true JPS55130504A (en) 1980-10-09

Family

ID=12510604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3790779A Pending JPS55130504A (en) 1979-03-30 1979-03-30 Optical branching circuit

Country Status (1)

Country Link
JP (1) JPS55130504A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635103A (en) * 1979-08-31 1981-04-07 Fujitsu Ltd Optical fiber branching filter
JPS58169125A (en) * 1982-03-30 1983-10-05 Fujitsu Ltd Demultiplexer for optical communication
US4420219A (en) * 1980-03-18 1983-12-13 Carl-Zeiss-Stiftung Optical waveguide connector using aspheric lenses
JPS6026907A (en) * 1983-07-26 1985-02-09 Fujitsu Ltd Optical demultiplexer and multiplexer
US4701012A (en) * 1984-04-12 1987-10-20 Standard Elektrik Lorenz Optical multiplexer/demultiplexer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542144A (en) * 1977-06-07 1979-01-09 Matsushita Electric Ind Co Ltd Branching filter for optical transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS542144A (en) * 1977-06-07 1979-01-09 Matsushita Electric Ind Co Ltd Branching filter for optical transmission

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5635103A (en) * 1979-08-31 1981-04-07 Fujitsu Ltd Optical fiber branching filter
US4420219A (en) * 1980-03-18 1983-12-13 Carl-Zeiss-Stiftung Optical waveguide connector using aspheric lenses
JPS58169125A (en) * 1982-03-30 1983-10-05 Fujitsu Ltd Demultiplexer for optical communication
JPS6218889B2 (en) * 1982-03-30 1987-04-24 Fujitsu Ltd
JPS6026907A (en) * 1983-07-26 1985-02-09 Fujitsu Ltd Optical demultiplexer and multiplexer
US4701012A (en) * 1984-04-12 1987-10-20 Standard Elektrik Lorenz Optical multiplexer/demultiplexer

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