JPS5624835A - Multiplex transmission system for optical fiber - Google Patents

Multiplex transmission system for optical fiber

Info

Publication number
JPS5624835A
JPS5624835A JP10089779A JP10089779A JPS5624835A JP S5624835 A JPS5624835 A JP S5624835A JP 10089779 A JP10089779 A JP 10089779A JP 10089779 A JP10089779 A JP 10089779A JP S5624835 A JPS5624835 A JP S5624835A
Authority
JP
Japan
Prior art keywords
light emitting
optical
filters
emitting diode
circuit
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
JP10089779A
Other languages
Japanese (ja)
Other versions
JPS631785B2 (en
Inventor
Koichi Minemura
Shigetoki Sugimoto
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 JP10089779A priority Critical patent/JPS5624835A/en
Publication of JPS5624835A publication Critical patent/JPS5624835A/en
Publication of JPS631785B2 publication Critical patent/JPS631785B2/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
    • H04J14/03—WDM arrangements
    • H04J14/0307—Multiplexers; Demultiplexers

Landscapes

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

Abstract

PURPOSE:To increase the degree of optical multiplex by narrowing the light emitting spectrum of each light emitting diode by the optical filters. CONSTITUTION:The signals applied to input terminals 9 and 10 of optical transmitters 1 and 2 are turned into the photosignals via light emitting diodes 7 and 8, and then enter multiplexing circuit 11 through optical filters 3 and 4 which have no overlap of the pass bands. Circuit 11 compounds the outputs of filters 3 and 4 to send the composite output to transmission line 12. The output light of line 12 is converted into the electric output via optical brancing filter circuit 13 plus optical receivers 14 and 15 each to be delivered to terminals 20 and 21. Thus the light emitting diode having the light emitting spectra overlapping substantially can be used since the light emitting spectrum of the light emitting diode is narrowed by the optical filters. As a result, the degree the optical multiplex can be increased.
JP10089779A 1979-08-07 1979-08-07 Multiplex transmission system for optical fiber Granted JPS5624835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10089779A JPS5624835A (en) 1979-08-07 1979-08-07 Multiplex transmission system for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10089779A JPS5624835A (en) 1979-08-07 1979-08-07 Multiplex transmission system for optical fiber

Publications (2)

Publication Number Publication Date
JPS5624835A true JPS5624835A (en) 1981-03-10
JPS631785B2 JPS631785B2 (en) 1988-01-14

Family

ID=14286123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10089779A Granted JPS5624835A (en) 1979-08-07 1979-08-07 Multiplex transmission system for optical fiber

Country Status (1)

Country Link
JP (1) JPS5624835A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145494A (en) * 1991-11-19 1993-06-11 Nec Corp Optical wavelength multiplex signal transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145494A (en) * 1991-11-19 1993-06-11 Nec Corp Optical wavelength multiplex signal transmitter

Also Published As

Publication number Publication date
JPS631785B2 (en) 1988-01-14

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