JPS57186704A - Optical switch - Google Patents

Optical switch

Info

Publication number
JPS57186704A
JPS57186704A JP7068681A JP7068681A JPS57186704A JP S57186704 A JPS57186704 A JP S57186704A JP 7068681 A JP7068681 A JP 7068681A JP 7068681 A JP7068681 A JP 7068681A JP S57186704 A JPS57186704 A JP S57186704A
Authority
JP
Japan
Prior art keywords
optical fibers
priority station
pass circuit
fiber
low
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
JP7068681A
Other languages
Japanese (ja)
Inventor
Masahiro Sakakibara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7068681A priority Critical patent/JPS57186704A/en
Publication of JPS57186704A publication Critical patent/JPS57186704A/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
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3562—Switch of the bypass type, i.e. enabling a change of path in a network, e.g. to bypass a failed element in the network
    • 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
    • G02B6/3502—Optical coupling means having switching means involving direct waveguide displacement, e.g. cantilever type waveguide displacement involving waveguide bending, or displacing an interposed waveguide between stationary waveguides
    • G02B6/3508—Lateral or transverse displacement of the whole waveguides, e.g. by varying the distance between opposed waveguide ends, or by mutual lateral displacement of opposed waveguide ends
    • 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
    • G02B6/3546—NxM switch, i.e. a regular array of switches elements of matrix type constellation

Landscapes

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

Abstract

PURPOSE:To constitute a by-pass circuit which prevents damage at low cost by providing a movable part, which has four incorporated optical fibers, between two input optical fibers and two output optical fibers, and using a high- loss fiber as one of them. CONSTITUTION:End surfaces of output optical fibers 14 and 15 and input optical fibers 16 and 17 are formed and fixed on the same plane 22, and fiber end surfaces of a movable part 23 having channel-curved fibers 18-21 incorporated are pressed against the plate 22 and slid. Then, Fig. (a) shows that a signal from a high-priority station is received at a part 16, processed by a receiver R and transmitted to a transmitter T for transmission 15 to a low-priority station. In Fig. (b) for maintenance inspection, etc., the high-priority station side 16 has direct communication 21 with the low-priority station side 15, forming a by- pass circuit as shown by 17, 19 and 14. When the fiber 19 has high loss, electric power for transmission is reduced and inputted to the receiver R to facilitate maintenance inspection without disconnecting a trunk line. Consequently, the by-pass circuit having simple structure is constituted.
JP7068681A 1981-05-13 1981-05-13 Optical switch Pending JPS57186704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7068681A JPS57186704A (en) 1981-05-13 1981-05-13 Optical switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7068681A JPS57186704A (en) 1981-05-13 1981-05-13 Optical switch

Publications (1)

Publication Number Publication Date
JPS57186704A true JPS57186704A (en) 1982-11-17

Family

ID=13438768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7068681A Pending JPS57186704A (en) 1981-05-13 1981-05-13 Optical switch

Country Status (1)

Country Link
JP (1) JPS57186704A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874218A (en) * 1988-07-19 1989-10-17 Amp Incorporated Reversible Optical Switch
US4927225A (en) * 1989-05-30 1990-05-22 Finisar Corporation 2×2 Optical bypass switch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947025A (en) * 1972-08-10 1974-05-07
JPS5413349A (en) * 1977-07-01 1979-01-31 Nippon Telegr & Teleph Corp <Ntt> Switch for optical fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4947025A (en) * 1972-08-10 1974-05-07
JPS5413349A (en) * 1977-07-01 1979-01-31 Nippon Telegr & Teleph Corp <Ntt> Switch for optical fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4874218A (en) * 1988-07-19 1989-10-17 Amp Incorporated Reversible Optical Switch
US4927225A (en) * 1989-05-30 1990-05-22 Finisar Corporation 2×2 Optical bypass switch

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