ES2125292T3 - Aparato y procedimiento para linealizar un modulador optico externo. - Google Patents

Aparato y procedimiento para linealizar un modulador optico externo.

Info

Publication number
ES2125292T3
ES2125292T3 ES93116752T ES93116752T ES2125292T3 ES 2125292 T3 ES2125292 T3 ES 2125292T3 ES 93116752 T ES93116752 T ES 93116752T ES 93116752 T ES93116752 T ES 93116752T ES 2125292 T3 ES2125292 T3 ES 2125292T3
Authority
ES
Spain
Prior art keywords
modulator
minimize
optical carrier
linearize
procedure
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.)
Expired - Lifetime
Application number
ES93116752T
Other languages
English (en)
Inventor
David R Huber
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.)
Arris Technology Inc
Original Assignee
Arris Technology Inc
General Instrument 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 Arris Technology Inc, General Instrument Corp filed Critical Arris Technology Inc
Application granted granted Critical
Publication of ES2125292T3 publication Critical patent/ES2125292T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5051—Laser transmitters using external modulation using a series, i.e. cascade, combination of modulators
    • 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
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50572—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulating signal amplitude including amplitude distortion
    • 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
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50575—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulator DC bias
    • 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
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50577—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the phase of the modulating signal
    • 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
    • H04B10/588—Compensation for non-linear transmitter output in external modulation systems
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
    • G02F1/0123—Circuits for the control or stabilisation of the bias voltage, e.g. automatic bias control [ABC] feedback loops
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/19—Function characteristic linearised modulation; reduction of harmonic distortions

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

SE DESCRIBE UN MODULADOR OPTICO EXTERNO (18,64,120,150) QUE SE HACE LINEAL PARA REDUCIR DISTORSIONES DE SEGUNDO ORDEN. UN PORTADOR OPTICO SE MODULA EN EL MODULADOR MEDIANTE UNA SEÑAL PILOTO (38). EL PORTADOR OPTICO MODULADO SE MUESTRA (26) Y SE GENERA UNA SEÑAL DE ERROR INDICATIVA DE LA DIFERENCIA DE FASE ENTRE UNA SEGUNDA ARMONICA DE LA SEÑAL PILOTO Y SUS ARMONICAS DE SEGUNDO ORDEN PRESENTES EN EL PORTADOR OPTICO MODULADO EN MUESTRA. LA SEÑAL DE ERROR REGRESA (42,56) AL MODULADOR (18) PARA AJUSTAR SUS VIAS HASTA MINIMIZAR LA DIFERENCIA DE FASE Y ASI MINIMIZAR LAS DISTORSIONES DE SEGUNDO ORDEN PRODUCIDAS POR EL MODULADOR. CUANDO VARIOS MODULADORES EXTERNOS (65,67) SE OPERAN EN SERIES, CADA UNO TIENE UN ANILLO DE RETROALIMENTACION (76-82,84-90) PARA MINIMIZAR LAS DISTORSIONES DE SEGUNDO ORDEN EN EL PRODUCIDAS.
ES93116752T 1992-10-20 1993-10-16 Aparato y procedimiento para linealizar un modulador optico externo. Expired - Lifetime ES2125292T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/963,460 US5321543A (en) 1992-10-20 1992-10-20 Apparatus and method for linearizing an external optical modulator

Publications (1)

Publication Number Publication Date
ES2125292T3 true ES2125292T3 (es) 1999-03-01

Family

ID=25507277

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93116752T Expired - Lifetime ES2125292T3 (es) 1992-10-20 1993-10-16 Aparato y procedimiento para linealizar un modulador optico externo.

Country Status (9)

Country Link
US (1) US5321543A (es)
EP (1) EP0594088B1 (es)
AU (1) AU658806B2 (es)
DE (1) DE69322479T2 (es)
ES (1) ES2125292T3 (es)
GR (1) GR3029420T3 (es)
MX (1) MX9306511A (es)
NZ (1) NZ248982A (es)
TW (1) TW256884B (es)

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Also Published As

Publication number Publication date
TW256884B (es) 1995-09-11
EP0594088A1 (en) 1994-04-27
DE69322479T2 (de) 1999-06-24
MX9306511A (es) 1994-04-29
GR3029420T3 (en) 1999-05-28
AU658806B2 (en) 1995-04-27
AU4907593A (en) 1994-05-05
NZ248982A (en) 1995-08-28
DE69322479D1 (de) 1999-01-21
EP0594088B1 (en) 1998-12-09
US5321543A (en) 1994-06-14

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