JPS57115042A - High power optical transmission system - Google Patents

High power optical transmission system

Info

Publication number
JPS57115042A
JPS57115042A JP56001410A JP141081A JPS57115042A JP S57115042 A JPS57115042 A JP S57115042A JP 56001410 A JP56001410 A JP 56001410A JP 141081 A JP141081 A JP 141081A JP S57115042 A JPS57115042 A JP S57115042A
Authority
JP
Japan
Prior art keywords
transmission
wavelength
raman scattering
light
induced raman
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
JP56001410A
Other languages
Japanese (ja)
Other versions
JPS6243161B2 (en
Inventor
Masahiro 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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56001410A priority Critical patent/JPS57115042A/en
Publication of JPS57115042A publication Critical patent/JPS57115042A/en
Publication of JPS6243161B2 publication Critical patent/JPS6243161B2/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
    • H04B10/2537—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to scattering processes, e.g. Raman or Brillouin scattering

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To perform a long distance and broad band transmission, by lessening the wavelength dispersion due to the induced Raman scattering in case of the transmission using a single mode optical fiber. CONSTITUTION:In case that a semiconductor laser is used as a light source to perform the optical transmission through a silica single mode optical fiber in the PCM-IM modulation system, the transmission distance is restricted by the wavelength dispersion and the loss of the transmission line. When a large optical input is given to the single mode optical fiber, a light having a wavelength, which is different from the oscillation wavelength of the input light, as shown in figure is generated by the induced Raman scattering phenomenon to shorten the transmission distance. However, if a loss coefficient for the primary stokes light wavelength in the induced Raman scattering on the optical transmission line is set to a value lower than the value, which is determined by the loss coefficient of a used wavelength, the optical power of an input signal, a transmission distance, and an optical power shutting area, not to generate the primary stokes light, the wavelength dispersion due to the induced Raman scattering can be ignored, and thus, the long distance and broad band transmission is possible.
JP56001410A 1981-01-08 1981-01-08 High power optical transmission system Granted JPS57115042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001410A JPS57115042A (en) 1981-01-08 1981-01-08 High power optical transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001410A JPS57115042A (en) 1981-01-08 1981-01-08 High power optical transmission system

Publications (2)

Publication Number Publication Date
JPS57115042A true JPS57115042A (en) 1982-07-17
JPS6243161B2 JPS6243161B2 (en) 1987-09-11

Family

ID=11500711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001410A Granted JPS57115042A (en) 1981-01-08 1981-01-08 High power optical transmission system

Country Status (1)

Country Link
JP (1) JPS57115042A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303318A (en) * 1991-11-01 1994-04-12 Nippon Telegraph & Telephone Corporation High power acceptable optical fiber and fabrication method thereof
EP0636868A1 (en) * 1993-07-22 1995-02-01 York Limited Optical time domain reflectometry
US5508845A (en) * 1990-10-18 1996-04-16 Telstra Corporation Limited Quasi-soliton communication system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5508845A (en) * 1990-10-18 1996-04-16 Telstra Corporation Limited Quasi-soliton communication system
US5303318A (en) * 1991-11-01 1994-04-12 Nippon Telegraph & Telephone Corporation High power acceptable optical fiber and fabrication method thereof
EP0636868A1 (en) * 1993-07-22 1995-02-01 York Limited Optical time domain reflectometry
EP1338877A2 (en) * 1993-07-22 2003-08-27 York Limited Optical time domain reflectometry
EP1338876A2 (en) * 1993-07-22 2003-08-27 York Limited Optical time domain reflectometry
EP1338877A3 (en) * 1993-07-22 2003-09-03 York Limited Optical time domain reflectometry
EP1338876A3 (en) * 1993-07-22 2003-09-03 York Limited Optical time domain reflectometry
EP1345020A1 (en) * 1993-07-22 2003-09-17 York Limited Optical time domain reflectometry

Also Published As

Publication number Publication date
JPS6243161B2 (en) 1987-09-11

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