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JPS5593338A - Optical multiplex transmission system - Google Patents

Optical multiplex transmission system

Info

Publication number
JPS5593338A
JPS5593338A JP120379A JP120379A JPS5593338A JP S5593338 A JPS5593338 A JP S5593338A JP 120379 A JP120379 A JP 120379A JP 120379 A JP120379 A JP 120379A JP S5593338 A JPS5593338 A JP S5593338A
Authority
JP
Japan
Prior art keywords
photo
semiconductor laser
signal
electric
distortion
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
JP120379A
Other languages
Japanese (ja)
Other versions
JPS6139775B2 (en
Inventor
Shigeru Minagawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP120379A priority Critical patent/JPS5593338A/en
Publication of JPS5593338A publication Critical patent/JPS5593338A/en
Publication of JPS6139775B2 publication Critical patent/JPS6139775B2/ja
Granted 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
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]

Landscapes

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

Abstract

PURPOSE:To realize the transmission system very useful and excellent to the multiplex transmission without being affected with the dispersion of semiconductor laser characteristics, by eliminating the distortion caused by the non-linearity of the current versus light output characteristics of semiconductor laser by means of filter. CONSTITUTION:A plurality of carriers mixed inputted to the terminal 1 are branched with the branch unit 2 and electric-photo conversion is made by inputting to the semiconductor laser 3 different in the emitted spectrum wave length. The light output signal in intensity modulation is coupled with the fiber 4 and mixed in the photo synthesizer 5 and transmitted with one transmission fiber 6. The photo signal transmitted is branched with the photo branch unit 7 and photo-electric conversion is made with the respecitve photo detector 9. The signal converted with the photo detector 9 and having distortion, is eliminated for harmonic distortion with the mixer 10 constituted with the band pass filter and the electric signal only with the fundamental waves is obtained at the terminal 11.
JP120379A 1979-01-09 1979-01-09 Optical multiplex transmission system Granted JPS5593338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP120379A JPS5593338A (en) 1979-01-09 1979-01-09 Optical multiplex transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP120379A JPS5593338A (en) 1979-01-09 1979-01-09 Optical multiplex transmission system

Publications (2)

Publication Number Publication Date
JPS5593338A true JPS5593338A (en) 1980-07-15
JPS6139775B2 JPS6139775B2 (en) 1986-09-05

Family

ID=11494896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP120379A Granted JPS5593338A (en) 1979-01-09 1979-01-09 Optical multiplex transmission system

Country Status (1)

Country Link
JP (1) JPS5593338A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002632A1 (en) * 1981-01-16 1982-08-05 Western Electric Co An optical communication arrangement for reducing harmonic distortion
JPH0346842A (en) * 1989-07-14 1991-02-28 Nec Corp Fdm optical transmitter
JPH0983435A (en) * 1995-09-20 1997-03-28 Nec Corp Optical transmitter
WO1997049248A1 (en) * 1996-06-21 1997-12-24 Fiber Optic Network Systems Corp. Wavelength division multiplexing system
US6163395A (en) * 1995-03-06 2000-12-19 Fiber Optics Network Solutions Corp. Linear multi-output optical transmitter system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002632A1 (en) * 1981-01-16 1982-08-05 Western Electric Co An optical communication arrangement for reducing harmonic distortion
JPH0346842A (en) * 1989-07-14 1991-02-28 Nec Corp Fdm optical transmitter
US6163395A (en) * 1995-03-06 2000-12-19 Fiber Optics Network Solutions Corp. Linear multi-output optical transmitter system
JPH0983435A (en) * 1995-09-20 1997-03-28 Nec Corp Optical transmitter
WO1997049248A1 (en) * 1996-06-21 1997-12-24 Fiber Optic Network Systems Corp. Wavelength division multiplexing system

Also Published As

Publication number Publication date
JPS6139775B2 (en) 1986-09-05

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