JPS5636245A - Optical power feeding system - Google Patents

Optical power feeding system

Info

Publication number
JPS5636245A
JPS5636245A JP11132679A JP11132679A JPS5636245A JP S5636245 A JPS5636245 A JP S5636245A JP 11132679 A JP11132679 A JP 11132679A JP 11132679 A JP11132679 A JP 11132679A JP S5636245 A JPS5636245 A JP S5636245A
Authority
JP
Japan
Prior art keywords
photosignal
telephone set
wave length
electric power
converted
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
JP11132679A
Other languages
Japanese (ja)
Inventor
Tatsu Tsuda
Michimitsu Hattori
Shuzo Morita
Haruki Fukuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11132679A priority Critical patent/JPS5636245A/en
Publication of JPS5636245A publication Critical patent/JPS5636245A/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
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/806—Arrangements for feeding power
    • H04B10/807—Optical power feeding, i.e. transmitting power using an optical signal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To make it possible to supply electric power even if the subscriber's line is constituted with an optical fiber, by supplying electric power as the photosignal from the exchange side. CONSTITUTION:In exchange 1, the photosignal of wave length lambda1 from light emitting element 11 for power supply is applied to photocoupler 13 corresponding to each optical fiber 2 by light distributor 12, and the call signal is converted to a photosignal of wave length lambda2(lambda2not equal to lambda1) by light emitting element 14 for signal and is applied to photocoupler 13, and these photosignals are transmitted to telephone set 3 through the optical fiber. In telephone set 3, the photosignal of wave length lambda1 is separated by branching filter 31 and is applied to photoelectric conversion power source part 32, and the photosignal is converted to electric power, and this electric power is supplied to telephone set circuit 33, and the photosignal of wave length lambda2 is separated by branching filter 31 and is applied to telephone set circuit 33, and the photosignal is converted to an electric signal by the photoelectric conversion part in the telephone set circuit and is supplied to the receiver.
JP11132679A 1979-08-31 1979-08-31 Optical power feeding system Pending JPS5636245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11132679A JPS5636245A (en) 1979-08-31 1979-08-31 Optical power feeding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11132679A JPS5636245A (en) 1979-08-31 1979-08-31 Optical power feeding system

Publications (1)

Publication Number Publication Date
JPS5636245A true JPS5636245A (en) 1981-04-09

Family

ID=14558362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11132679A Pending JPS5636245A (en) 1979-08-31 1979-08-31 Optical power feeding system

Country Status (1)

Country Link
JP (1) JPS5636245A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196635A (en) * 1983-04-21 1984-11-08 Nec Corp Optical fiber loop bus system
JPS59216366A (en) * 1983-05-24 1984-12-06 Nec Corp Terminal feeding system
US4525873A (en) * 1981-09-24 1985-06-25 Siemens Aktiengesellschaft Device for transmitting measured values to a remote location
US4525874A (en) * 1981-09-24 1985-06-25 Siemens Aktiengesellschaft Device for transmitting measured values to a remote location
JPS60140902U (en) * 1984-02-28 1985-09-18 横河電機株式会社 optical actuator
GB2376825A (en) * 2001-06-15 2002-12-24 Salah A Al-Chalabi Coherence multiplexed optical telephone network using optical power supply
JP2005509329A (en) * 2001-06-15 2005-04-07 アル−チャラビ、サラー、エイ Optical communication apparatus and method
JP2019029684A (en) * 2017-07-25 2019-02-21 Ｎｅｃプラットフォームズ株式会社 Network connection device and network connection device power feeding method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531403A (en) * 1976-06-28 1978-01-09 Nippon Telegr & Teleph Corp <Ntt> Power supply system for light information transmitting network

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531403A (en) * 1976-06-28 1978-01-09 Nippon Telegr & Teleph Corp <Ntt> Power supply system for light information transmitting network

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525873A (en) * 1981-09-24 1985-06-25 Siemens Aktiengesellschaft Device for transmitting measured values to a remote location
US4525874A (en) * 1981-09-24 1985-06-25 Siemens Aktiengesellschaft Device for transmitting measured values to a remote location
JPS59196635A (en) * 1983-04-21 1984-11-08 Nec Corp Optical fiber loop bus system
JPS59216366A (en) * 1983-05-24 1984-12-06 Nec Corp Terminal feeding system
JPS60140902U (en) * 1984-02-28 1985-09-18 横河電機株式会社 optical actuator
GB2376825A (en) * 2001-06-15 2002-12-24 Salah A Al-Chalabi Coherence multiplexed optical telephone network using optical power supply
JP2005509329A (en) * 2001-06-15 2005-04-07 アル−チャラビ、サラー、エイ Optical communication apparatus and method
US7660534B2 (en) 2001-06-15 2010-02-09 Salah Al-Chalabi Optical communication device and system using optical power and signals
JP2019029684A (en) * 2017-07-25 2019-02-21 Ｎｅｃプラットフォームズ株式会社 Network connection device and network connection device power feeding method

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