JPS5562403A - Optical path changeover device - Google Patents

Optical path changeover device

Info

Publication number
JPS5562403A
JPS5562403A JP13544178A JP13544178A JPS5562403A JP S5562403 A JPS5562403 A JP S5562403A JP 13544178 A JP13544178 A JP 13544178A JP 13544178 A JP13544178 A JP 13544178A JP S5562403 A JPS5562403 A JP S5562403A
Authority
JP
Japan
Prior art keywords
central axis
face
transmission bodies
thru
optical
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
JP13544178A
Other languages
Japanese (ja)
Inventor
Kazuhisa Kaede
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13544178A priority Critical patent/JPS5562403A/en
Publication of JPS5562403A publication Critical patent/JPS5562403A/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
    • G02B6/3524—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive
    • 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
    • G02B6/3524—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive
    • G02B6/3526—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being refractive the optical element being a lens
    • 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
    • G02B6/3554—3D constellations, i.e. with switching elements and switched beams located in a volume

Landscapes

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

Abstract

PURPOSE:To make the deivce simple, samll in size and of high coupling and low loss by combining half-cylindrical type optical transmission bodies which have been applied with full reflecting films on the specified faces and whose refractive index change and length include the specified central axis and changing over the optical paths of the optical fibers making contact with their end faces. CONSTITUTION:The semi-circular type optical transmission bodies 1, 2 whose refractive indices gradually decrease from the center toward the perphery within the section perpendicular to the central axis, whose lengths are nearly (2N-1)/4 with respect to the zigzagperiods of light, where N is positive integer, and which are provided with total reflecting films 4, 5 on one end face perpendicular to the central axis are combined by way of the total reflecting film 3 applied on the cut face of the transmission body 2. Optical fibers 6 thru 8 which are arrayed symmetrically to the central axis are contacted to the other end face of this combination including the central axis and if the combination of the transmission bodies 1, 2 is rotated with the central axis as axis, the incidence and exit routes by the fibers 6 thru 8 change and the device for multiple optical path changing which is simple, small in size and of high coupling and low loss is provided.
JP13544178A 1978-11-02 1978-11-02 Optical path changeover device Pending JPS5562403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13544178A JPS5562403A (en) 1978-11-02 1978-11-02 Optical path changeover device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13544178A JPS5562403A (en) 1978-11-02 1978-11-02 Optical path changeover device

Publications (1)

Publication Number Publication Date
JPS5562403A true JPS5562403A (en) 1980-05-10

Family

ID=15151784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13544178A Pending JPS5562403A (en) 1978-11-02 1978-11-02 Optical path changeover device

Country Status (1)

Country Link
JP (1) JPS5562403A (en)

Similar Documents

Publication Publication Date Title
JPS5562403A (en) Optical path changeover device
JPS53135652A (en) Optical branching element
JPS52130631A (en) Photographic lens of large aperture and super wide angle
JPS5685701A (en) Optical branching filter
JPS5329740A (en) Light branch and connecting circuit by use of optical fiber
JPS566203A (en) Photoswitch
JPS5756813A (en) Vaiable optical branching circuit for single mode fiber
JPS561001A (en) Optical fiber diffusion delay equalizer
JPS54102135A (en) Optical path changeover device
JPS56102806A (en) Light distributing circuit for optical fiber communication
JPS57177104A (en) Optical demultiplexer
JPS57211104A (en) Directional coupler type optical demultiplexer having periodic structure
JPS6446707A (en) Optical path switching device
JPS5635106A (en) Optical fiber coupler
JPS57198425A (en) Optical branching and coupling circuit
JPS5521011A (en) Thin fllm spectral module
JPS5557804A (en) Optical branching and coupling device
JPS5521077A (en) Photo switch
JPS5492281A (en) Light attenuator
JPS5546711A (en) Photo coupling device
JPS54146645A (en) Photo-circuit element
JPS5473655A (en) Photo circuit element
JPS55147602A (en) Photo switch
JPS5533149A (en) Photo switch
JPS5675603A (en) Photobranching and-combining device with fan-shaped reflecting surface