JPS5631242A - Remote power supply optical communication unit - Google Patents

Remote power supply optical communication unit

Info

Publication number
JPS5631242A
JPS5631242A JP10700579A JP10700579A JPS5631242A JP S5631242 A JPS5631242 A JP S5631242A JP 10700579 A JP10700579 A JP 10700579A JP 10700579 A JP10700579 A JP 10700579A JP S5631242 A JPS5631242 A JP S5631242A
Authority
JP
Japan
Prior art keywords
photosignal
signal
electric
equipment
voltage
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.)
Granted
Application number
JP10700579A
Other languages
Japanese (ja)
Other versions
JPS6351421B2 (en
Inventor
Sadayuki Ikeda
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 JP10700579A priority Critical patent/JPS5631242A/en
Publication of JPS5631242A publication Critical patent/JPS5631242A/en
Publication of JPS6351421B2 publication Critical patent/JPS6351421B2/ja
Granted 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
    • H04B10/50—Transmitters

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To omit the control line and make the diameter of the cable small to reduce electric power supply, by performing the open loop control of an electric power transmission means by the incoming intensity of the photosignal. CONSTITUTION:Electric power is supplied to stabilizing voltage equipment 203 and light modulator bias current control equipment 204 from variable output power control unit 217 through power source lines 228 and 229. Stabilizing voltage equipment 203 gives a fixed voltage to signal generator 202. The signal from signal generator 202 and the signal from light modulator bias current control equipment 204 are given to electric signal-photosignal converter 205 and are converted to a photosignal and are transmitted to photosignal-electric signal converter 213 through optical fiber cable 226. The electric signal obtained by photosignal-electric signal converter 213 is transmitted to receiving signal processing unit 214 and bias light quantity detector 215. The voltage obtained by bias light quantity detector 215 is compared with the reference voltage to control the output of variable output power control unit 217.
JP10700579A 1979-08-22 1979-08-22 Remote power supply optical communication unit Granted JPS5631242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10700579A JPS5631242A (en) 1979-08-22 1979-08-22 Remote power supply optical communication unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10700579A JPS5631242A (en) 1979-08-22 1979-08-22 Remote power supply optical communication unit

Publications (2)

Publication Number Publication Date
JPS5631242A true JPS5631242A (en) 1981-03-30
JPS6351421B2 JPS6351421B2 (en) 1988-10-13

Family

ID=14448068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10700579A Granted JPS5631242A (en) 1979-08-22 1979-08-22 Remote power supply optical communication unit

Country Status (1)

Country Link
JP (1) JPS5631242A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223093A (en) * 1983-06-01 1984-12-14 Matsushita Electric Ind Co Ltd Key telephone set
JP2011228825A (en) * 2010-04-16 2011-11-10 Ntt Docomo Inc Radio signal optical fiber transmission system
JP2020077987A (en) * 2018-11-08 2020-05-21 Ｋａｉフォトニクス株式会社 Optical transmission/reception system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009118473A (en) * 2007-10-19 2009-05-28 Sumitomo Electric Ind Ltd On-vehicle optical lan system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5458843A (en) * 1977-10-19 1979-05-11 Meidensha Electric Mfg Co Ltd Prevention of overvoltage in no-break power unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5458843A (en) * 1977-10-19 1979-05-11 Meidensha Electric Mfg Co Ltd Prevention of overvoltage in no-break power unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223093A (en) * 1983-06-01 1984-12-14 Matsushita Electric Ind Co Ltd Key telephone set
JP2011228825A (en) * 2010-04-16 2011-11-10 Ntt Docomo Inc Radio signal optical fiber transmission system
JP2020077987A (en) * 2018-11-08 2020-05-21 Ｋａｉフォトニクス株式会社 Optical transmission/reception system

Also Published As

Publication number Publication date
JPS6351421B2 (en) 1988-10-13

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