JPS6142457B2 - - Google Patents

Info

Publication number
JPS6142457B2
JPS6142457B2 JP54059743A JP5974379A JPS6142457B2 JP S6142457 B2 JPS6142457 B2 JP S6142457B2 JP 54059743 A JP54059743 A JP 54059743A JP 5974379 A JP5974379 A JP 5974379A JP S6142457 B2 JPS6142457 B2 JP S6142457B2
Authority
JP
Japan
Prior art keywords
optical
output
repeater
signal
optical repeater
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.)
Expired
Application number
JP54059743A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55152434A (en
Inventor
Hiroharu Wakabayashi
Yasuhiko Niino
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP5974379A priority Critical patent/JPS55152434A/ja
Priority to US06/146,687 priority patent/US4313224A/en
Priority to GB8016265A priority patent/GB2051355B/en
Publication of JPS55152434A publication Critical patent/JPS55152434A/ja
Publication of JPS6142457B2 publication Critical patent/JPS6142457B2/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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/298—Two-way repeaters, i.e. repeaters amplifying separate upward and downward lines

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Optical Communication System (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
JP5974379A 1979-05-17 1979-05-17 Light output monitoring system for light repeater Granted JPS55152434A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5974379A JPS55152434A (en) 1979-05-17 1979-05-17 Light output monitoring system for light repeater
US06/146,687 US4313224A (en) 1979-05-17 1980-05-05 Monitoring system of an optical power in an optical repeater
GB8016265A GB2051355B (en) 1979-05-17 1980-05-16 Monitoring the power output of a repeater in an optical transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5974379A JPS55152434A (en) 1979-05-17 1979-05-17 Light output monitoring system for light repeater

Publications (2)

Publication Number Publication Date
JPS55152434A JPS55152434A (en) 1980-11-27
JPS6142457B2 true JPS6142457B2 (enExample) 1986-09-20

Family

ID=13122006

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5974379A Granted JPS55152434A (en) 1979-05-17 1979-05-17 Light output monitoring system for light repeater

Country Status (3)

Country Link
US (1) US4313224A (enExample)
JP (1) JPS55152434A (enExample)
GB (1) GB2051355B (enExample)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1170756A (en) * 1980-11-17 1984-07-10 Donald W. Harvey Remote seismic data system
JPS5860843A (ja) * 1981-10-06 1983-04-11 Natl Aerospace Lab 故障判断回路
DE3201375A1 (de) * 1982-01-19 1983-07-28 Siemens AG, 1000 Berlin und 8000 München Traegerfrequenzsystem fuer vierdrahtbetrieb
DE3224998A1 (de) * 1982-07-03 1984-01-05 Philips Kommunikations Industrie AG, 8500 Nürnberg Einrichtung fuer die fehlerortung in einem optischen nachrichtenuebertragungssystem
GB2127653B (en) * 1982-09-15 1986-10-15 Standard Telephones Cables Ltd Supervision of digital transmission systems
US4586186A (en) * 1983-08-08 1986-04-29 At&T Bell Laboratories Maintenance response signalling arrangement for a digital transmission system
US4633464A (en) * 1983-08-08 1986-12-30 At&T Bell Laboratories Control signalling arrangement for a digital transmission system
US4837556A (en) * 1985-04-15 1989-06-06 Kabushiki Kaisha Nihon Denzai Kogyo Kenkyusho Signal transmission device
GB2191356B (en) * 1986-06-03 1990-06-13 Stc Plc Optical communication terminal
SE458328B (sv) * 1987-07-16 1989-03-13 Ericsson Telefon Ab L M Anordning foer fellokalisering i en dubbelriktad optisk linjelaenk
US5485296A (en) * 1989-07-29 1996-01-16 British Telecommunications Public Limited Company Monitor unit for monitoring an optical waveguide
GB8917488D0 (en) * 1989-07-31 1989-09-13 British Telecomm A monitor unit for monitoring an optical waveguide
AU634261B2 (en) * 1989-08-09 1993-02-18 Tasman Cable Company Pty. Limited (Tcc) Fault location arrangement for digital transmission system
AU650584B2 (en) * 1989-08-09 1994-06-23 Tasman Cable Company Pty. Ltd. Fault location arrangement for digital transmission system
US5212713A (en) * 1989-08-09 1993-05-18 Tasman Cable Company Fault location arrangement for digital transmission systems
US5060302A (en) * 1990-02-28 1991-10-22 At&T Bell Laboratories Automatic adjustment of optical power output of a plurality of optical transmitters
JP2515046B2 (ja) * 1990-07-13 1996-07-10 富士通株式会社 光中継器
JPH04217123A (ja) * 1990-12-18 1992-08-07 Fujitsu Ltd 光伝送システムの給電方式
IT1247844B (it) * 1991-03-29 1995-01-02 Pirelli Cavi S P A Dir Proprie Linea di telecomunicazione a fibre ottiche con amplificatori ottici, dotata di mezzi di protezione in grado di interrompere l'emissione luminosa in tutta la linea in presenza di un'interruzione della fibra ottica e di riattivarla automaticamente al ripristino della sua continuita'
IT1247845B (it) * 1991-03-29 1995-01-02 Pirelli Cavi Spa Linea di telecomunicazione a fibre ottiche con dispositivo di protezione per amplificatori ottici
TW199948B (enExample) * 1991-12-19 1993-02-11 Dsc Comm Corp
JPH05211482A (ja) * 1992-01-31 1993-08-20 Fujitsu Ltd 光増幅中継器
US5428471A (en) * 1992-07-30 1995-06-27 Alcatel Network Systems, Inc. Fail-safe automatic shut-down apparatus and method for high output power optical communications system
JPH0787013A (ja) * 1993-09-10 1995-03-31 Fujitsu Ltd 光海底ケーブルシステム
JPH07264231A (ja) * 1994-03-16 1995-10-13 Fujitsu Ltd 回線切替え方式
JPH0897773A (ja) * 1994-09-27 1996-04-12 Fujitsu Ltd 光信号伝送装置
US6246497B1 (en) * 1998-03-12 2001-06-12 Net-Hopper Systems, Inc. Active optical loop-back system
US6476953B1 (en) * 1999-08-18 2002-11-05 Fujitsu Network Communications, Inc. Wavelength preserving regenerator for DWDM transmission systems
JP4576756B2 (ja) * 2001-06-19 2010-11-10 株式会社日立製作所 光信号切替え装置、および、その使用方法
JP4632585B2 (ja) * 2001-07-16 2011-02-16 富士通株式会社 光伝送システム
US7215891B1 (en) 2003-06-06 2007-05-08 Jds Uniphase Corporation Integrated driving, receiving, controlling, and monitoring for optical transceivers
US7088141B2 (en) * 2004-10-14 2006-08-08 International Business Machines Corporation Multi-threshold complementary metal-oxide semiconductor (MTCMOS) bus circuit and method for reducing bus power consumption via pulsed standby switching
US9094147B2 (en) * 2013-03-15 2015-07-28 Xtera Communications, Inc. System control of repeatered optical communications system
CN108039908A (zh) * 2018-01-09 2018-05-15 凌云天博光电科技股份有限公司 光通信设备参数修正方法和装置
WO2019186672A1 (ja) * 2018-03-27 2019-10-03 日本電気株式会社 海底光通信システム制御装置、制御方法及び非一時的なコンピュータ可読媒体

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239063B1 (enExample) * 1973-07-27 1977-09-16 Thomson Csf
US3981592A (en) * 1975-03-31 1976-09-21 The United States Of America As Represented By The Secretary Of The Navy System for locating breaks in fiber optic filaments
US4019048A (en) * 1976-03-22 1977-04-19 Bell Telephone Laboratories, Incorporated Regenerator for an optical transmission system
JPS593051B2 (ja) * 1978-01-09 1984-01-21 ケイディディ株式会社 光中継伝送路の障害監視方式
JPS5523612A (en) * 1978-08-07 1980-02-20 Kokusai Denshin Denwa Co Ltd <Kdd> Detection system of faulty position of optical fiber transmission system
US4257124A (en) * 1979-04-02 1981-03-17 The Boeing Company Optical repeater for use in active multiport fiber optic data bus coupler

Also Published As

Publication number Publication date
GB2051355B (en) 1983-03-16
GB2051355A (en) 1981-01-14
JPS55152434A (en) 1980-11-27
US4313224A (en) 1982-01-26

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