JPS5393702A - Optical transmitter - Google Patents

Optical transmitter

Info

Publication number
JPS5393702A
JPS5393702A JP855777A JP855777A JPS5393702A JP S5393702 A JPS5393702 A JP S5393702A JP 855777 A JP855777 A JP 855777A JP 855777 A JP855777 A JP 855777A JP S5393702 A JPS5393702 A JP S5393702A
Authority
JP
Japan
Prior art keywords
optical transmitter
optical transmission
transmission part
break
monitoring
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
JP855777A
Other languages
Japanese (ja)
Inventor
Kazumasa Tsukada
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 JP855777A priority Critical patent/JPS5393702A/en
Publication of JPS5393702A publication Critical patent/JPS5393702A/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
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To ensure a switching without break for the double optical transmission part, by monitoring the driving current value for the optical transmission part.
JP855777A 1977-01-27 1977-01-27 Optical transmitter Pending JPS5393702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP855777A JPS5393702A (en) 1977-01-27 1977-01-27 Optical transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP855777A JPS5393702A (en) 1977-01-27 1977-01-27 Optical transmitter

Publications (1)

Publication Number Publication Date
JPS5393702A true JPS5393702A (en) 1978-08-17

Family

ID=11696400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP855777A Pending JPS5393702A (en) 1977-01-27 1977-01-27 Optical transmitter

Country Status (1)

Country Link
JP (1) JPS5393702A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111141A (en) * 1980-12-26 1982-07-10 Fujitsu Ltd Light emission element driving circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57111141A (en) * 1980-12-26 1982-07-10 Fujitsu Ltd Light emission element driving circuit
JPS6318902B2 (en) * 1980-12-26 1988-04-20 Fujitsu Ltd

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