JPS54107202A - Optical communication unit - Google Patents

Optical communication unit

Info

Publication number
JPS54107202A
JPS54107202A JP1424978A JP1424978A JPS54107202A JP S54107202 A JPS54107202 A JP S54107202A JP 1424978 A JP1424978 A JP 1424978A JP 1424978 A JP1424978 A JP 1424978A JP S54107202 A JPS54107202 A JP S54107202A
Authority
JP
Japan
Prior art keywords
light
luminous element
signal
luminous
output
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
JP1424978A
Other languages
Japanese (ja)
Inventor
Takeshi Usui
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 JP1424978A priority Critical patent/JPS54107202A/en
Publication of JPS54107202A publication Critical patent/JPS54107202A/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
    • H04B10/40—Transceivers

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 make two-way simultaneous communication possible by using the output light of one or a pair of luminous elements which are incorporated in one communication unit. CONSTITUTION:Input signal 11 causes luminous element 13 to emit light in modulation. This signal and the non-modulation light of luminous element 14 are synthesized in synthesizing circuit 15 and are transmitted. The signal light which is propagated through optical transmission path 31 is branched by light branching filter 21, and components where the output of luminous element 13 is main are converted to electric signals by photo detector 22. Components where the output of luminous element 14 is main are inputted to light modulator 26 and are modulated by input signal 24. This signal light is propagated through optical transmissin path 32 and is converted to electric signals by photo detector 16. since luminous elements are used only in one station 10 in this constitution, the reliability of luminous elements can be improved if this station is installed in the position of good environment.
JP1424978A 1978-02-10 1978-02-10 Optical communication unit Pending JPS54107202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1424978A JPS54107202A (en) 1978-02-10 1978-02-10 Optical communication unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1424978A JPS54107202A (en) 1978-02-10 1978-02-10 Optical communication unit

Publications (1)

Publication Number Publication Date
JPS54107202A true JPS54107202A (en) 1979-08-22

Family

ID=11855807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1424978A Pending JPS54107202A (en) 1978-02-10 1978-02-10 Optical communication unit

Country Status (1)

Country Link
JP (1) JPS54107202A (en)

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