JPS5784423A - Optical device - Google Patents

Optical device

Info

Publication number
JPS5784423A
JPS5784423A JP16046880A JP16046880A JPS5784423A JP S5784423 A JPS5784423 A JP S5784423A JP 16046880 A JP16046880 A JP 16046880A JP 16046880 A JP16046880 A JP 16046880A JP S5784423 A JPS5784423 A JP S5784423A
Authority
JP
Japan
Prior art keywords
optical
optical fiber
cut
optical axis
transmission
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
JP16046880A
Other languages
Japanese (ja)
Inventor
Osamu Hasegawa
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 JP16046880A priority Critical patent/JPS5784423A/en
Publication of JPS5784423A publication Critical patent/JPS5784423A/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
    • G02B6/29362—Serial cascade of filters or filtering operations, e.g. for a large number of channels
    • G02B6/29364—Cascading by a light guide path between filters or filtering operations, e.g. fibre interconnected single filter modules

Landscapes

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

Abstract

PURPOSE:To obtain an optical device for limiting the wavelength of a transmission light beam, by forming a metallic or dielectric thin film on the end of an optical fiber which has been cut in the 45 deg. direction. CONSTITUTION:The first optical fiber 31 is cut and polished in the 45 deg. direction against the optical axis, a metallic or dielectric thin film 33 is formed on its end, and also the second optical fiber 32 which has been cut in the 45 deg. direction against the optical axis, as well, is brought into contact with said first optical fiber 31. On an optical axis l having an end of 45 deg. against the optical axis of this optical fiber, an optical semiconductor element 41 constituting an optical signal source or a photodetecting part is placed. When plural optical fibers 31, 31'... having such constitution are connected through filters 33, 33'..., the wavelength of a transmission light beam is selected, and an optical transmission line which is capable of a large quantity of transmission is constituted.
JP16046880A 1980-11-14 1980-11-14 Optical device Pending JPS5784423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16046880A JPS5784423A (en) 1980-11-14 1980-11-14 Optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16046880A JPS5784423A (en) 1980-11-14 1980-11-14 Optical device

Publications (1)

Publication Number Publication Date
JPS5784423A true JPS5784423A (en) 1982-05-26

Family

ID=15715593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16046880A Pending JPS5784423A (en) 1980-11-14 1980-11-14 Optical device

Country Status (1)

Country Link
JP (1) JPS5784423A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147117U (en) * 1983-03-22 1984-10-01 三菱電線工業株式会社 Wavelength multiplexing optical transceiver module
JPH0233109A (en) * 1988-06-15 1990-02-02 American Teleph & Telegr Co <Att> Double wavelength optical communication former

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59147117U (en) * 1983-03-22 1984-10-01 三菱電線工業株式会社 Wavelength multiplexing optical transceiver module
JPH0233109A (en) * 1988-06-15 1990-02-02 American Teleph & Telegr Co <Att> Double wavelength optical communication former

Similar Documents

Publication Publication Date Title
EP0204493A3 (en) Fibre optic coupler
JPS5360651A (en) Semiconductor laser with optical fibers
DE3371845D1 (en) Compact wavelength multiplexer-demultiplexer with adaptive filtering
EP0220690A3 (en) Optical fiber expanded beam connector
JPS5784423A (en) Optical device
JPS5488136A (en) Optical branching filter for optical fibers
JPS55115008A (en) Semiconductor laser coupler
JPS56147111A (en) Photocoupler
JPS57211288A (en) Coupler for semiconductor laser and optical fiber
JPS57158604A (en) Light beam converting adaptor
JPS5681809A (en) Optical coupling device
JPS5535354A (en) Semiconductor laser beam branching device
JPS5727214A (en) Graded lens and optical transmission line using said lens
JPS6446707A (en) Optical path switching device
JPS6455506A (en) Optical circuit
JPS5521077A (en) Photo switch
JPS56137327A (en) Optical circulator
JPS56159603A (en) Optical path switch
JPS55163424A (en) Temperature detector
JPS57211289A (en) Semicondutor laser coupler for single mode optical fiber
JPS54138453A (en) Optical branching coupler
JPS57195204A (en) Constitution of optical system which has saved polarized state
JPS5451391A (en) Photo coupler
JPS5526504A (en) Optical fiber device
JPS5342845A (en) Photo coupling device