FR2387555A1 - REDUCED DISTORTION OPTICAL TRANSMITTER - Google Patents

REDUCED DISTORTION OPTICAL TRANSMITTER

Info

Publication number
FR2387555A1
FR2387555A1 FR7811128A FR7811128A FR2387555A1 FR 2387555 A1 FR2387555 A1 FR 2387555A1 FR 7811128 A FR7811128 A FR 7811128A FR 7811128 A FR7811128 A FR 7811128A FR 2387555 A1 FR2387555 A1 FR 2387555A1
Authority
FR
France
Prior art keywords
optical transmitter
reduced distortion
distortion optical
signal
photo
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
FR7811128A
Other languages
French (fr)
Other versions
FR2387555B1 (en
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of FR2387555A1 publication Critical patent/FR2387555A1/en
Application granted granted Critical
Publication of FR2387555B1 publication Critical patent/FR2387555B1/fr
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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/502—LED transmitters
    • 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
    • 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
    • H04B10/50—Transmitters
    • H04B10/564—Power control
    • 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
    • H04B10/50—Transmitters
    • H04B10/58—Compensation for non-linear transmitter output

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)

Abstract

La présente invention concerne un émetteur optique à distorsion réduite. Un émetteur optique selon la présente invention utilise deux trajets d'entrée. Le signal d'entrée Sin est divisé en des signaux S1 et S2 . Le signal S 1 passe par un premier photo-émetteur 12 et un premier photo-récepteur 13. Le deuxième signal d'entrée S2 passe par un circuit de retard 16. La différence entre le signal de sortie du récepteur 14 et le signal de sortie du circuit de retard 16, effectuée par un sommateur 15, est fournie à un émetteur optique 18 de mêmes caractéristiques que l'émetteur 12. Application aux télécommunications optiques.The present invention relates to an optical transmitter with reduced distortion. An optical transmitter according to the present invention uses two input paths. The input signal Sin is divided into signals S1 and S2. The signal S 1 passes through a first photo-emitter 12 and a first photo-receiver 13. The second input signal S2 passes through a delay circuit 16. The difference between the output signal of the receiver 14 and the output signal of the delay circuit 16, performed by an adder 15, is supplied to an optical transmitter 18 having the same characteristics as the transmitter 12. Application to optical telecommunications.

FR7811128A 1977-04-15 1978-04-14 REDUCED DISTORTION OPTICAL TRANSMITTER Granted FR2387555A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA276,274A CA1063675A (en) 1977-04-15 1977-04-15 Method and apparatus for distortion reduction in optical communication systems

Publications (2)

Publication Number Publication Date
FR2387555A1 true FR2387555A1 (en) 1978-11-10
FR2387555B1 FR2387555B1 (en) 1984-10-26

Family

ID=4108399

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811128A Granted FR2387555A1 (en) 1977-04-15 1978-04-14 REDUCED DISTORTION OPTICAL TRANSMITTER

Country Status (5)

Country Link
JP (1) JPS6030458B2 (en)
CA (1) CA1063675A (en)
DE (1) DE2814716A1 (en)
FR (1) FR2387555A1 (en)
GB (1) GB1566850A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6246289Y2 (en) * 1981-05-11 1987-12-12
DE4029399A1 (en) * 1990-09-17 1992-03-19 Eickhoff Geb Opto-coupler for digital signal transmission - uses control stage for counter-phase control of parallel elements
DE19736380A1 (en) * 1997-08-21 1999-02-25 Alsthom Cge Alcatel Method and device for generating an optical output signal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2218431C3 (en) * 1972-04-17 1986-10-23 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement to compensate for the non-linear relationship between applied voltage and light emission in luminescent diodes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *

Also Published As

Publication number Publication date
GB1566850A (en) 1980-05-08
CA1063675A (en) 1979-10-02
FR2387555B1 (en) 1984-10-26
DE2814716A1 (en) 1978-10-19
JPS53129505A (en) 1978-11-11
DE2814716C2 (en) 1989-08-10
JPS6030458B2 (en) 1985-07-16

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Legal Events

Date Code Title Description
ST Notification of lapse