JPS57155849A - Star type information transmission network - Google Patents

Star type information transmission network

Info

Publication number
JPS57155849A
JPS57155849A JP56041547A JP4154781A JPS57155849A JP S57155849 A JPS57155849 A JP S57155849A JP 56041547 A JP56041547 A JP 56041547A JP 4154781 A JP4154781 A JP 4154781A JP S57155849 A JPS57155849 A JP S57155849A
Authority
JP
Japan
Prior art keywords
optical
signal
signals
type information
star coupler
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
JP56041547A
Other languages
Japanese (ja)
Inventor
Kimihisa Ichikawa
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 JP56041547A priority Critical patent/JPS57155849A/en
Publication of JPS57155849A publication Critical patent/JPS57155849A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking

Abstract

PURPOSE:To reduce transmission loss and to achieve simultaneous transmission of a signal, by giving a wave synthesizing and branching characteristic to a star coupler in a star type information transmission network and receiving optical signals with different wavelength at each station. CONSTITUTION:Each stations S1-Sn consists an optical signal transmitter T, an optical signal receiver R, and a control section C performing the control for signal input and output, and the optical transmitter T transmits an optical signal in a predetermined wavelength with an opposing station to be transmitted to a synthesizer 1a of a star coupler. The synthesizer synthesizes waves of the optical signals with different wavelength and transmits the result to a brancher 1b of the star coupler, receives optical signals at the brancher, and the branched waves are transmitted to the optical receiver R of the objective stations S1-Sn with reception optical fibers 31-3n. The optical receiver converts the optical signals into electric signals, which are applied to the control section C.
JP56041547A 1981-03-20 1981-03-20 Star type information transmission network Pending JPS57155849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56041547A JPS57155849A (en) 1981-03-20 1981-03-20 Star type information transmission network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56041547A JPS57155849A (en) 1981-03-20 1981-03-20 Star type information transmission network

Publications (1)

Publication Number Publication Date
JPS57155849A true JPS57155849A (en) 1982-09-27

Family

ID=12611444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56041547A Pending JPS57155849A (en) 1981-03-20 1981-03-20 Star type information transmission network

Country Status (1)

Country Link
JP (1) JPS57155849A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193528A (en) * 1985-02-22 1986-08-28 Nippon Telegr & Teleph Corp <Ntt> Optical communication network
JPS63187824A (en) * 1987-01-30 1988-08-03 Furukawa Electric Co Ltd:The Multiplex transmission system for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193528A (en) * 1985-02-22 1986-08-28 Nippon Telegr & Teleph Corp <Ntt> Optical communication network
JPH0316052B2 (en) * 1985-02-22 1991-03-04 Nippon Telegraph & Telephone
JPS63187824A (en) * 1987-01-30 1988-08-03 Furukawa Electric Co Ltd:The Multiplex transmission system for automobile

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