JPS55107353A - Optical fiber transmission system - Google Patents

Optical fiber transmission system

Info

Publication number
JPS55107353A
JPS55107353A JP1448879A JP1448879A JPS55107353A JP S55107353 A JPS55107353 A JP S55107353A JP 1448879 A JP1448879 A JP 1448879A JP 1448879 A JP1448879 A JP 1448879A JP S55107353 A JPS55107353 A JP S55107353A
Authority
JP
Japan
Prior art keywords
fibers
optical fiber
transmission system
fiber transmission
fiber
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
JP1448879A
Other languages
Japanese (ja)
Inventor
Risuke Shimodaira
Toshikazu Matsumoto
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 JP1448879A priority Critical patent/JPS55107353A/en
Publication of JPS55107353A publication Critical patent/JPS55107353A/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
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To improve the reception S/N through the use of a plurality of fibers or to enable to take long the transmission distance, by using photo switch to enable parallel transmission of one light emitting source to a plurality of fibers. CONSTITUTION:The light output from the light emitting source 1 is coupled to either of the fiber 31 of 32 in response to the data of the input signal terminal 10 with the photo switch 2. At the reception end, the photo-electro conversion circuit 4 identifies to which fiber the light is transmitted and original signal is delivered from the parallel serial conversion circuit 6. Accordingly, two fibers are used to improve the S/N by 6dB, which means the extension of the transmission distance by 6dB of S/N.
JP1448879A 1979-02-09 1979-02-09 Optical fiber transmission system Pending JPS55107353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1448879A JPS55107353A (en) 1979-02-09 1979-02-09 Optical fiber transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1448879A JPS55107353A (en) 1979-02-09 1979-02-09 Optical fiber transmission system

Publications (1)

Publication Number Publication Date
JPS55107353A true JPS55107353A (en) 1980-08-18

Family

ID=11862427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1448879A Pending JPS55107353A (en) 1979-02-09 1979-02-09 Optical fiber transmission system

Country Status (1)

Country Link
JP (1) JPS55107353A (en)

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