JPS56138707A - Optical branching device - Google Patents

Optical branching device

Info

Publication number
JPS56138707A
JPS56138707A JP4171680A JP4171680A JPS56138707A JP S56138707 A JPS56138707 A JP S56138707A JP 4171680 A JP4171680 A JP 4171680A JP 4171680 A JP4171680 A JP 4171680A JP S56138707 A JPS56138707 A JP S56138707A
Authority
JP
Japan
Prior art keywords
tio2
optical
branching device
al2o3
durability
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
JP4171680A
Other languages
Japanese (ja)
Inventor
Masao Ichiyama
Minoru Kiyono
Hiroki Nakajima
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 JP4171680A priority Critical patent/JPS56138707A/en
Publication of JPS56138707A publication Critical patent/JPS56138707A/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
    • G02B6/29368—Light guide comprising the filter, e.g. filter deposited on a fibre end
    • 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

Abstract

PURPOSE:To obtain an optical branching device having arbitrary branching ratios and high mechanical strength and durability by forming dielectric multilayer films consisting of >=2 kinds out of TiO2, Al2O3, SiO2 on the slope at one end of optical fibers. CONSTITUTION:One end of an optical fiber 21 for transmission is sloped to 45 deg., and is formed thereon with dielectric multilayer films consisting of, for example, three layers-TiO2 20-1, Al2O3 20-2, TiO2 30-3 by being given prescribed refraction at suitable rates of vapor deposition. After fibers 21-23 are accurately fixed in the V-grooves provided in a supporting case 27, resin coats 24-26 such as nylon are applied to bond these. The connection parts of the optical fibers 21-23 are bonded by a resin 28. Thereby, the optical branching device having arbitrary branching ratios as well as high mechanical strength and durability is obtained.
JP4171680A 1980-03-31 1980-03-31 Optical branching device Pending JPS56138707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4171680A JPS56138707A (en) 1980-03-31 1980-03-31 Optical branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4171680A JPS56138707A (en) 1980-03-31 1980-03-31 Optical branching device

Publications (1)

Publication Number Publication Date
JPS56138707A true JPS56138707A (en) 1981-10-29

Family

ID=12616139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4171680A Pending JPS56138707A (en) 1980-03-31 1980-03-31 Optical branching device

Country Status (1)

Country Link
JP (1) JPS56138707A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211732A (en) * 1982-06-04 1983-12-09 Fujikura Ltd Optical directional coupler
US4431258A (en) * 1981-12-15 1984-02-14 Gte Laboratories Incorporated Optical fiber transmission system and dichroic beam splitter therefor
FR2611056A1 (en) * 1987-02-16 1988-08-19 Alliance Tech Ind METHOD FOR MANUFACTURING A MULTIPLEXER / DEMULTIPLEXER COUPLER FOR OPTICAL FIBERS AND A COUPLER THUS OBTAINED
EP0530025A2 (en) * 1991-08-29 1993-03-03 Nec Corporation Light receiving module
WO1994000782A1 (en) * 1992-06-19 1994-01-06 Fujitsu Limited Photocoupler
WO2015200395A1 (en) 2014-06-26 2015-12-30 Commscope, Inc. Of North Carolina Optical tap

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431258A (en) * 1981-12-15 1984-02-14 Gte Laboratories Incorporated Optical fiber transmission system and dichroic beam splitter therefor
JPS58211732A (en) * 1982-06-04 1983-12-09 Fujikura Ltd Optical directional coupler
FR2611056A1 (en) * 1987-02-16 1988-08-19 Alliance Tech Ind METHOD FOR MANUFACTURING A MULTIPLEXER / DEMULTIPLEXER COUPLER FOR OPTICAL FIBERS AND A COUPLER THUS OBTAINED
EP0530025A2 (en) * 1991-08-29 1993-03-03 Nec Corporation Light receiving module
WO1994000782A1 (en) * 1992-06-19 1994-01-06 Fujitsu Limited Photocoupler
US5699187A (en) * 1992-06-19 1997-12-16 Fujitsu Limited Optical coupler
WO2015200395A1 (en) 2014-06-26 2015-12-30 Commscope, Inc. Of North Carolina Optical tap
EP3161532A4 (en) * 2014-06-26 2018-02-28 CommScope, Inc. of North Carolina Optical tap

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