JPS568103A - Photoswitch - Google Patents

Photoswitch

Info

Publication number
JPS568103A
JPS568103A JP8342779A JP8342779A JPS568103A JP S568103 A JPS568103 A JP S568103A JP 8342779 A JP8342779 A JP 8342779A JP 8342779 A JP8342779 A JP 8342779A JP S568103 A JPS568103 A JP S568103A
Authority
JP
Japan
Prior art keywords
light
wavelength
optical fiber
photoswitch
combining device
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
JP8342779A
Other languages
Japanese (ja)
Inventor
Yoshikazu Nishiwaki
Koichi Tsuno
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP8342779A priority Critical patent/JPS568103A/en
Publication of JPS568103A publication Critical patent/JPS568103A/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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/353—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being a shutter, baffle, beam dump or opaque element
    • 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
    • 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
    • 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
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3548—1xN switch, i.e. one input and a selectable single output of N possible outputs
    • G02B6/3552—1x1 switch, e.g. on/off switch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE:To obtain a photoswitch of simple and rigid construction by branching only the specific one wavelength of the wavelength multiplex signal, and letting this light be shielded or transmitted. CONSTITUTION:An optical fiber 1 for transmission transmitting the wavelength multiple photo signal is interposed with a branching filter 2 and a wave combining device 3. The branching filter 2 takes out the light of the specific wavelength and transmits the light of other wavelengths, and the wave combining device 3 has the function of combining the light of the branched wavelength with the light of the other wavelengths. The light of the specific wavelength emitted from the 1st optical fiber 4 connected to the branching filter 2 is led into the 2nd optical fiber 5 connecting to the wave combining device 3. Hence, it is possible to know the condition of a light shielding plate 6 by detecting the presence or absence of the light of the specific wavelength in the light having been transmitted in the optical fiber 1. In this way, the photoswitch of the simple and rigid construction is obtained.
JP8342779A 1979-07-03 1979-07-03 Photoswitch Pending JPS568103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8342779A JPS568103A (en) 1979-07-03 1979-07-03 Photoswitch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8342779A JPS568103A (en) 1979-07-03 1979-07-03 Photoswitch

Publications (1)

Publication Number Publication Date
JPS568103A true JPS568103A (en) 1981-01-27

Family

ID=13802133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8342779A Pending JPS568103A (en) 1979-07-03 1979-07-03 Photoswitch

Country Status (1)

Country Link
JP (1) JPS568103A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549611A1 (en) * 1983-07-21 1985-01-25 Honda Motor Co Ltd OPTICAL SWITCHING DEVICE
JPS6024504A (en) * 1983-07-21 1985-02-07 Honda Motor Co Ltd Optical selector
JPS6021707U (en) * 1983-07-21 1985-02-14 本田技研工業株式会社 light selector
JPS6021708U (en) * 1983-07-21 1985-02-14 本田技研工業株式会社 Optical cable for optical multiplex communication equipment
JPS6028706U (en) * 1983-08-02 1985-02-26 本田技研工業株式会社 light selector
JPS6199118A (en) * 1984-10-22 1986-05-17 Seiko Epson Corp Projection type display device
US5956167A (en) * 1996-07-09 1999-09-21 Fujitsu Limited Light branching and insertion apparatus and optical transmission system having light branching and insertion apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549611A1 (en) * 1983-07-21 1985-01-25 Honda Motor Co Ltd OPTICAL SWITCHING DEVICE
JPS6024504A (en) * 1983-07-21 1985-02-07 Honda Motor Co Ltd Optical selector
JPS6021707U (en) * 1983-07-21 1985-02-14 本田技研工業株式会社 light selector
JPS6021708U (en) * 1983-07-21 1985-02-14 本田技研工業株式会社 Optical cable for optical multiplex communication equipment
JPS6028706U (en) * 1983-08-02 1985-02-26 本田技研工業株式会社 light selector
JPS6199118A (en) * 1984-10-22 1986-05-17 Seiko Epson Corp Projection type display device
JPH0514249B2 (en) * 1984-10-22 1993-02-24 Seiko Epson Corp
US5956167A (en) * 1996-07-09 1999-09-21 Fujitsu Limited Light branching and insertion apparatus and optical transmission system having light branching and insertion apparatus

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