JPS54140405A - Optical communication system - Google Patents

Optical communication system

Info

Publication number
JPS54140405A
JPS54140405A JP4813378A JP4813378A JPS54140405A JP S54140405 A JPS54140405 A JP S54140405A JP 4813378 A JP4813378 A JP 4813378A JP 4813378 A JP4813378 A JP 4813378A JP S54140405 A JPS54140405 A JP S54140405A
Authority
JP
Japan
Prior art keywords
optical
signals
optical fiber
constitution
transmitters
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
JP4813378A
Other languages
Japanese (ja)
Inventor
Munehiko Nagano
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4813378A priority Critical patent/JPS54140405A/en
Publication of JPS54140405A publication Critical patent/JPS54140405A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

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

Abstract

PURPOSE:To reduce the effect of the nonlinear distortion the light source features by combining the optical modulation signals given from plural units of the optical transmitter and then transmitting the combined signals via one piece of the transmission optical fiber. CONSTITUTION:Optical transmitters 1 - 4 consist of analog signal sources 5 - 8 featuring the central frequencies f1 - f4 plus light emitting diodes 9 - 12 which are modulated by sources 5 - 8. The optical modulation signals 13 - 16 given from transmitters 1 - 4 are combined to transmission optical fiber 22 by photo coupler 21 and via optical fibers 7 - 20. The signals are then converted to the electric signals via photo detector 23 and at the other end of optical fiber 22 and then divided into central frequencies f1 - f4 through band pass filters 25 - 28 after amplification to be received at analog signal receiving parts 29 - 32. In this constitution, if the maximum degree of modulation of the light emitting diode caused by the nonlinear distortion or the like is, for instance, 80%, the ratio of that 80% can be left as it is with no relation to the number of multiplication.
JP4813378A 1978-04-21 1978-04-21 Optical communication system Pending JPS54140405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4813378A JPS54140405A (en) 1978-04-21 1978-04-21 Optical communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4813378A JPS54140405A (en) 1978-04-21 1978-04-21 Optical communication system

Publications (1)

Publication Number Publication Date
JPS54140405A true JPS54140405A (en) 1979-10-31

Family

ID=12794826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4813378A Pending JPS54140405A (en) 1978-04-21 1978-04-21 Optical communication system

Country Status (1)

Country Link
JP (1) JPS54140405A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60213141A (en) * 1984-04-06 1985-10-25 Matsushita Electric Ind Co Ltd Laser diode power control device
KR100353708B1 (en) * 1995-12-30 2003-03-15 삼성전자 주식회사 Apparatus for constructing optical network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60213141A (en) * 1984-04-06 1985-10-25 Matsushita Electric Ind Co Ltd Laser diode power control device
JPH0318779B2 (en) * 1984-04-06 1991-03-13 Matsushita Electric Ind Co Ltd
KR100353708B1 (en) * 1995-12-30 2003-03-15 삼성전자 주식회사 Apparatus for constructing optical network

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