JPS5662435A - Optical data link - Google Patents

Optical data link

Info

Publication number
JPS5662435A
JPS5662435A JP13959279A JP13959279A JPS5662435A JP S5662435 A JPS5662435 A JP S5662435A JP 13959279 A JP13959279 A JP 13959279A JP 13959279 A JP13959279 A JP 13959279A JP S5662435 A JPS5662435 A JP S5662435A
Authority
JP
Japan
Prior art keywords
optical
signal
transmission line
transmitted
peak power
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.)
Granted
Application number
JP13959279A
Other languages
Japanese (ja)
Other versions
JPH0131334B2 (en
Inventor
Takeshi Usui
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 JP13959279A priority Critical patent/JPS5662435A/en
Publication of JPS5662435A publication Critical patent/JPS5662435A/en
Publication of JPH0131334B2 publication Critical patent/JPH0131334B2/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
    • H04B10/29—Repeaters

Landscapes

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

Abstract

PURPOSE:To enable long distance transmission, by controlling the peak power of optical signal coupled from an optical communication device to an optical transmission line so that it is proportional to the optical signal peak power transmitted on the optical transmission line and the power variance of optical signal multiplex can be suppressed. CONSTITUTION:The transmission signal transmitted on an optical transmission line 2 is transmitted to the optical transmission line 2 via an optical transmitter 41. The optical signal on the transmission line is input to the photodetector via an optical branch circuit 5, and it is separated into the signal from this communication device 4 and the signal transmitted on the essential transmission line at the signal separation circuit 44. The said both signals are input to peak value detection circuits 46, 47 to detect the peak power. Two peak powers are compared at a comparison circuit 48 and both the signals are transmitted to the optical transmission line after the peak power of signal to be transmitted is equal to the peak power of signal transmitted on the essential transmission line.
JP13959279A 1979-10-29 1979-10-29 Optical data link Granted JPS5662435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13959279A JPS5662435A (en) 1979-10-29 1979-10-29 Optical data link

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13959279A JPS5662435A (en) 1979-10-29 1979-10-29 Optical data link

Publications (2)

Publication Number Publication Date
JPS5662435A true JPS5662435A (en) 1981-05-28
JPH0131334B2 JPH0131334B2 (en) 1989-06-26

Family

ID=15248853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13959279A Granted JPS5662435A (en) 1979-10-29 1979-10-29 Optical data link

Country Status (1)

Country Link
JP (1) JPS5662435A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6535309B1 (en) 1998-03-20 2003-03-18 Fujitsu Limited Optical multiplexing/demultiplexing apparatus and optical multiplexing/demultiplexing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6535309B1 (en) 1998-03-20 2003-03-18 Fujitsu Limited Optical multiplexing/demultiplexing apparatus and optical multiplexing/demultiplexing method

Also Published As

Publication number Publication date
JPH0131334B2 (en) 1989-06-26

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