JPS5616335A - Optical communication apparatus - Google Patents

Optical communication apparatus

Info

Publication number
JPS5616335A
JPS5616335A JP9247179A JP9247179A JPS5616335A JP S5616335 A JPS5616335 A JP S5616335A JP 9247179 A JP9247179 A JP 9247179A JP 9247179 A JP9247179 A JP 9247179A JP S5616335 A JPS5616335 A JP S5616335A
Authority
JP
Japan
Prior art keywords
optical
photosignal
light source
fiber
reduced
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
JP9247179A
Other languages
Japanese (ja)
Other versions
JPS6410972B2 (en
Inventor
Katsuyoshi Ito
Akira Fujita
Yoshio Miyake
Kenji Ikeda
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 JP9247179A priority Critical patent/JPS5616335A/en
Publication of JPS5616335A publication Critical patent/JPS5616335A/en
Publication of JPS6410972B2 publication Critical patent/JPS6410972B2/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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion

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 reduce occurrence of both the signal distortion and the noise, by providing the light source having the laser diode LD which oscillates at a time and in the three wavelengths or more plus the optical fiber each. CONSTITUTION:The photosignal sent from LD100 which functions as the light source of light emitting part 10 is led into transmitting optical fiber 30 via optical connector A20. Fiber 30 is connected to another fiber 30 by optical connector 40 to transmit the photosignal and the photosignal is led to light receiving part 50 via optical connector 20. The LD which oscillates at one time and in plural numbers of wavelengths is used for the light source of part 10. As a result, the coherent length of the laser beam is decreased, and the contrast ratio of the speckle pattern is reduced suddenly as the optical fiber length increases. At the same time, the feedback optical amount from the specified reflecting point to each oscillation wave- length is reduced since the general optical amount is scattered to each oscillation wavelength, thus reducing the perturbation of the laser oscillation. Accordingly, both the signal distortion and the noise can be reduced.
JP9247179A 1979-07-18 1979-07-18 Optical communication apparatus Granted JPS5616335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9247179A JPS5616335A (en) 1979-07-18 1979-07-18 Optical communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9247179A JPS5616335A (en) 1979-07-18 1979-07-18 Optical communication apparatus

Publications (2)

Publication Number Publication Date
JPS5616335A true JPS5616335A (en) 1981-02-17
JPS6410972B2 JPS6410972B2 (en) 1989-02-22

Family

ID=14055237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9247179A Granted JPS5616335A (en) 1979-07-18 1979-07-18 Optical communication apparatus

Country Status (1)

Country Link
JP (1) JPS5616335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112076A2 (en) * 1982-11-24 1984-06-27 Xerox Corporation Light source for optic communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0112076A2 (en) * 1982-11-24 1984-06-27 Xerox Corporation Light source for optic communication system

Also Published As

Publication number Publication date
JPS6410972B2 (en) 1989-02-22

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