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JPS57164631A - Optical transmitter - Google Patents

Optical transmitter

Info

Publication number
JPS57164631A
JPS57164631A JP56050229A JP5022981A JPS57164631A JP S57164631 A JPS57164631 A JP S57164631A JP 56050229 A JP56050229 A JP 56050229A JP 5022981 A JP5022981 A JP 5022981A JP S57164631 A JPS57164631 A JP S57164631A
Authority
JP
Japan
Prior art keywords
control place
optical
places
terminals
mixers
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
JP56050229A
Other languages
Japanese (ja)
Inventor
Kenji Shoroji
Etsuo Yamazaki
Nobuo Kobata
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
SWCC Corp
Original Assignee
Toshiba Corp
Showa Electric Wire and Cable Co
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, Showa Electric Wire and Cable Co, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56050229A priority Critical patent/JPS57164631A/en
Publication of JPS57164631A publication Critical patent/JPS57164631A/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
    • G02B6/2804—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
    • G02B6/2808—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 a mixing element which evenly distributes an input signal over a number of outputs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To obtain a device of a high transmission efficiency for which cable laying and terminal extension easy, by providing an optical bundle fiber bus having mixers in places between a control place and places to be controlled and leading out terminals for transmission and receiving, the number of which corresponds to the number of cable conductors, in accordance with the length from the control place. CONSTITUTION:An optical bundle fiber bus 3 is connected between a control place 1 and places 2a-2c... to be controlled. The bus 3 is formed by bundling plural optical fibers, and a light polarizer 8 is provided in the connection part to the control place 1, and mixers 9 are provided in places. The control place 1 is provided with light emitting elements 4 and photodetectors 5 different in wavelength. Optical fibers in the side of mixers 9 which is more distant from the control place 1 are disconnected to provide terminals 10a-10c... for optical signal transmission and terminals 11a-11c... for receiving, and light emitting elements 6a-6b... and photodetectors 7a-7c... are connected to them. The number of optical fibers for these terminals is increased in accordance with the attenuation quantity of the optical signal. The mixer 9 is formed by melt-fixing a glass bar 9a between optical bundle fibers 3a and 3b by heat.
JP56050229A 1981-04-03 1981-04-03 Optical transmitter Pending JPS57164631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56050229A JPS57164631A (en) 1981-04-03 1981-04-03 Optical transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56050229A JPS57164631A (en) 1981-04-03 1981-04-03 Optical transmitter

Publications (1)

Publication Number Publication Date
JPS57164631A true JPS57164631A (en) 1982-10-09

Family

ID=12853193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56050229A Pending JPS57164631A (en) 1981-04-03 1981-04-03 Optical transmitter

Country Status (1)

Country Link
JP (1) JPS57164631A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58133118U (en) * 1982-03-03 1983-09-08 三菱レイヨン株式会社 optical coupler
JPS6086511A (en) * 1983-10-19 1985-05-16 Sumitomo Electric Ind Ltd Light distributer
EP0234804A2 (en) * 1986-02-20 1987-09-02 AT&T Corp. Guided wave communication system
JPH03191626A (en) * 1989-12-21 1991-08-21 Hitachi Ltd Optical transmission line monitoring system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58133118U (en) * 1982-03-03 1983-09-08 三菱レイヨン株式会社 optical coupler
JPS6086511A (en) * 1983-10-19 1985-05-16 Sumitomo Electric Ind Ltd Light distributer
EP0234804A2 (en) * 1986-02-20 1987-09-02 AT&T Corp. Guided wave communication system
JPH03191626A (en) * 1989-12-21 1991-08-21 Hitachi Ltd Optical transmission line monitoring system

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