JPS53130053A - Circuit supervisory system of optical fiber cable - Google Patents

Circuit supervisory system of optical fiber cable

Info

Publication number
JPS53130053A
JPS53130053A JP4620377A JP4620377A JPS53130053A JP S53130053 A JPS53130053 A JP S53130053A JP 4620377 A JP4620377 A JP 4620377A JP 4620377 A JP4620377 A JP 4620377A JP S53130053 A JPS53130053 A JP S53130053A
Authority
JP
Japan
Prior art keywords
optical fiber
fiber cable
supervisory system
circuit supervisory
light wave
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
JP4620377A
Other languages
Japanese (ja)
Inventor
Hideyuki Takimoto
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP4620377A priority Critical patent/JPS53130053A/en
Publication of JPS53130053A publication Critical patent/JPS53130053A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE: To supervise a cable circuit with an exclusive light wave common for signal transmission system by using a light wave of a wavelength different from that of light wave for signal transmission, and providing a light mixer and a photospectroscope having wavelength selection characteristics and directionality.
COPYRIGHT: (C)1978,JPO&Japio
JP4620377A 1977-04-20 1977-04-20 Circuit supervisory system of optical fiber cable Pending JPS53130053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4620377A JPS53130053A (en) 1977-04-20 1977-04-20 Circuit supervisory system of optical fiber cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4620377A JPS53130053A (en) 1977-04-20 1977-04-20 Circuit supervisory system of optical fiber cable

Publications (1)

Publication Number Publication Date
JPS53130053A true JPS53130053A (en) 1978-11-13

Family

ID=12740516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4620377A Pending JPS53130053A (en) 1977-04-20 1977-04-20 Circuit supervisory system of optical fiber cable

Country Status (1)

Country Link
JP (1) JPS53130053A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453403A1 (en) * 1979-04-06 1980-10-31 Bertin & Cie Optical fibre link parasitic connection detector - uses second source whose amplitude and time shifts are memorised
EP0054363A1 (en) * 1980-12-17 1982-06-23 Imperial Chemical Industries Plc Apparatus for gathering data from a plurality of condition responsive optical sensors
JPS589039A (en) * 1981-07-10 1983-01-19 Fujitsu Ltd Monitoring system for optical transmission line
JPS5860838A (en) * 1981-10-07 1983-04-11 Oi Denki Kk Monitoring device for signal transmission line
JPS58191948A (en) * 1982-05-06 1983-11-09 Nippon Telegr & Teleph Corp <Ntt> Trouble searching system of optical transmission line
JPS59110236A (en) * 1982-12-15 1984-06-26 Mitsubishi Electric Corp Monitoring device for transmission loss of optical fiber wire
JPS59166837A (en) * 1983-03-14 1984-09-20 Tohoku Electric Power Co Inc Optical fiber cable monitoring system
JPS59169238A (en) * 1983-03-16 1984-09-25 Mitsubishi Electric Corp Optical transmitter
JPS59196438A (en) * 1983-04-22 1984-11-07 Nippon Telegr & Teleph Corp <Ntt> Method and device for separating interrupted position in light transmitting path
JPS63193750A (en) * 1987-02-06 1988-08-11 Nippon Telegr & Teleph Corp <Ntt> Method for maintaining and testing subscriber optical line network
JPS63289511A (en) * 1987-05-22 1988-11-28 Furukawa Electric Co Ltd:The Method for contrasting core of optical path
JP2007251683A (en) * 2006-03-16 2007-09-27 Fujitsu Ltd Optical characteristics measurement method and system
US7280756B2 (en) 2002-07-05 2007-10-09 Nec Corporation Optical signal transmission system, optical signal transmitter, optical signal receiver, method of transmitting optical signal and method of receiving optical signal
JP2009103526A (en) * 2007-10-22 2009-05-14 Furukawa Electric Co Ltd:The Optical line failure detection device, optical line failure detection method, and light source device and light receiving device used therefor
JP2014017451A (en) * 2012-07-11 2014-01-30 Fuji Xerox Co Ltd Optical transmission system and surface-emitting semiconductor laser

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453403A1 (en) * 1979-04-06 1980-10-31 Bertin & Cie Optical fibre link parasitic connection detector - uses second source whose amplitude and time shifts are memorised
EP0054363A1 (en) * 1980-12-17 1982-06-23 Imperial Chemical Industries Plc Apparatus for gathering data from a plurality of condition responsive optical sensors
JPS589039A (en) * 1981-07-10 1983-01-19 Fujitsu Ltd Monitoring system for optical transmission line
JPS5860838A (en) * 1981-10-07 1983-04-11 Oi Denki Kk Monitoring device for signal transmission line
JPH0381094B2 (en) * 1982-05-06 1991-12-27 Nippon Telegraph & Telephone
JPS58191948A (en) * 1982-05-06 1983-11-09 Nippon Telegr & Teleph Corp <Ntt> Trouble searching system of optical transmission line
JPS59110236A (en) * 1982-12-15 1984-06-26 Mitsubishi Electric Corp Monitoring device for transmission loss of optical fiber wire
JPS59166837A (en) * 1983-03-14 1984-09-20 Tohoku Electric Power Co Inc Optical fiber cable monitoring system
JPS59169238A (en) * 1983-03-16 1984-09-25 Mitsubishi Electric Corp Optical transmitter
JPS59196438A (en) * 1983-04-22 1984-11-07 Nippon Telegr & Teleph Corp <Ntt> Method and device for separating interrupted position in light transmitting path
JPH04214B2 (en) * 1983-04-22 1992-01-06 Nippon Telegraph & Telephone
JPS63193750A (en) * 1987-02-06 1988-08-11 Nippon Telegr & Teleph Corp <Ntt> Method for maintaining and testing subscriber optical line network
JPS63289511A (en) * 1987-05-22 1988-11-28 Furukawa Electric Co Ltd:The Method for contrasting core of optical path
JP2803726B2 (en) * 1987-05-22 1998-09-24 古河電気工業株式会社 Optical fiber line contrast method
US7280756B2 (en) 2002-07-05 2007-10-09 Nec Corporation Optical signal transmission system, optical signal transmitter, optical signal receiver, method of transmitting optical signal and method of receiving optical signal
JP2007251683A (en) * 2006-03-16 2007-09-27 Fujitsu Ltd Optical characteristics measurement method and system
JP4699924B2 (en) * 2006-03-16 2011-06-15 富士通株式会社 Method and system for measuring optical properties
JP2009103526A (en) * 2007-10-22 2009-05-14 Furukawa Electric Co Ltd:The Optical line failure detection device, optical line failure detection method, and light source device and light receiving device used therefor
JP2014017451A (en) * 2012-07-11 2014-01-30 Fuji Xerox Co Ltd Optical transmission system and surface-emitting semiconductor laser

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