JPS6121022B2 - - Google Patents

Info

Publication number
JPS6121022B2
JPS6121022B2 JP54005093A JP509379A JPS6121022B2 JP S6121022 B2 JPS6121022 B2 JP S6121022B2 JP 54005093 A JP54005093 A JP 54005093A JP 509379 A JP509379 A JP 509379A JP S6121022 B2 JPS6121022 B2 JP S6121022B2
Authority
JP
Japan
Prior art keywords
signal
optical
light
light emitting
emitting element
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
JP54005093A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5597753A (en
Inventor
Kyoshi Kubo
Tatsuo Fujita
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP509379A priority Critical patent/JPS5597753A/ja
Publication of JPS5597753A publication Critical patent/JPS5597753A/ja
Publication of JPS6121022B2 publication Critical patent/JPS6121022B2/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
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

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)
JP509379A 1979-01-19 1979-01-19 Optical-fiber transmission control system Granted JPS5597753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP509379A JPS5597753A (en) 1979-01-19 1979-01-19 Optical-fiber transmission control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP509379A JPS5597753A (en) 1979-01-19 1979-01-19 Optical-fiber transmission control system

Publications (2)

Publication Number Publication Date
JPS5597753A JPS5597753A (en) 1980-07-25
JPS6121022B2 true JPS6121022B2 (zh) 1986-05-24

Family

ID=11601769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP509379A Granted JPS5597753A (en) 1979-01-19 1979-01-19 Optical-fiber transmission control system

Country Status (1)

Country Link
JP (1) JPS5597753A (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117868B1 (en) * 1982-05-06 1989-10-04 Nippon Telegraph and Telephone Corporation Method and device for separating position of fault in light transmission line
FR2550400B1 (fr) * 1983-08-04 1986-06-13 Thomson Csf Procede et dispositif de transmission d'informations par fibre optique
NL9300618A (nl) * 1993-04-08 1994-11-01 Nederland Ptt Optisch circuit voor een meetsysteem voor het meten van de reflectiegevoeligheid van een optisch transmissiesysteem.
JP2000358261A (ja) 1999-06-16 2000-12-26 Nec Corp 光クロスコネクト装置及び光ネットワーク装置並びに接続状態監視方法

Also Published As

Publication number Publication date
JPS5597753A (en) 1980-07-25

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