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ES2126153T3 - Generador de secuencia de impulsos opticos. - Google Patents

Generador de secuencia de impulsos opticos.

Info

Publication number
ES2126153T3
ES2126153T3 ES94928988T ES94928988T ES2126153T3 ES 2126153 T3 ES2126153 T3 ES 2126153T3 ES 94928988 T ES94928988 T ES 94928988T ES 94928988 T ES94928988 T ES 94928988T ES 2126153 T3 ES2126153 T3 ES 2126153T3
Authority
ES
Spain
Prior art keywords
optical
pulse sequence
laser
repetitive
pulses
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
ES94928988T
Other languages
English (en)
Inventor
Julian Kazimierz Lucek
Kevin Smith
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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
Priority claimed from GB9406882A external-priority patent/GB9406882D0/en
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of ES2126153T3 publication Critical patent/ES2126153T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1106—Mode locking
    • H01S3/1112—Passive mode locking
    • 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
    • G02F1/35—Non-linear optics
    • G02F1/3515—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam
    • G02F1/3517—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam using an interferometer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06791—Fibre ring lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0075—Arrangements for synchronising receiver with transmitter with photonic or optical means
    • 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
    • G02F1/35—Non-linear optics
    • G02F1/3515—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam
    • G02F1/3517—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam using an interferometer
    • G02F1/3519—All-optical modulation, gating, switching, e.g. control of a light beam by another light beam using an interferometer of Sagnac type, i.e. nonlinear optical loop mirror [NOLM]
    • 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
    • G02F2/00—Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light
    • G02F2/004—Transferring the modulation of modulated light, i.e. transferring the information from one optical carrier of a first wavelength to a second optical carrier of a second wavelength, e.g. all-optical wavelength converter
    • G02F2/006—All-optical wavelength conversion
    • 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
    • G02F2203/54—Optical pulse train (comb) synthesizer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • H01S3/0057—Temporal shaping, e.g. pulse compression, frequency chirping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083—Ring lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10084—Frequency control by seeding
    • H01S3/10092—Coherent seed, e.g. injection locking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
    • H01S5/0057—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for temporal shaping, e.g. pulse compression, frequency chirping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/041—Optical pumping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0608—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems
    • H04J14/083—Add and drop multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
  • Microscoopes, Condenser (AREA)
  • Semiconductor Lasers (AREA)

Abstract

UNA SECUENCIA DE PULSOS OPTICOS SE GENERA APLICANDO UNA SEÑAL OPTICA REPETITIVA A UN MODULADOR OPTICO CONECTADO EN LA CAVIDAD LASER DE UN LASER EN POSICION BLOQUEADA . A CONTINUACION SE DA SALIDA A LA SECUENCIA DE PULSOS DE LA CAVIDAD LASER. EL PERIODO DE REPETICION DE LA SEÑAL OPTICA REPETITIVA SE FIJA PARA QUE SEA IGUAL A, O UN NUMERO ENTERO MULTIPLO DE LA DURACION DEL CICLO DE ROTACION DE LA CAVIDAD. DE ESTE MODO SE DIRIGE EL LASER PARA QUE LIBERE PULSOS EN POSICIONES DE BIT, CORRESPONDIENTES A PULSOS DIFERENTES DE CERO, DE LA SEÑAL OPTICA REPETITIVA DE ENTRADA. EN UN EJEMPLO, LA SECUENCIA DE PULSOS DE SALIDA SE UTILIZA PARA CONTROLAR UN INTERRUPTOR OPTICO PARA QUE ABASTEZCA A UN MULTIPLEXOR OTDM PROGRAMABLE QUE UTILICE SEÑALES OPTICAS.
ES94928988T 1993-10-11 1994-10-11 Generador de secuencia de impulsos opticos. Expired - Lifetime ES2126153T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP93308067 1993-10-11
GB9406882A GB9406882D0 (en) 1994-04-07 1994-04-07 Optical pulse sequence generator
EP94303193 1994-05-03

Publications (1)

Publication Number Publication Date
ES2126153T3 true ES2126153T3 (es) 1999-03-16

Family

ID=27235507

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94928988T Expired - Lifetime ES2126153T3 (es) 1993-10-11 1994-10-11 Generador de secuencia de impulsos opticos.

Country Status (10)

Country Link
US (1) US5796765A (es)
EP (1) EP0723716B1 (es)
JP (1) JPH09505688A (es)
CN (1) CN1096137C (es)
AU (1) AU676387B2 (es)
CA (1) CA2171337C (es)
DE (1) DE69414876T2 (es)
DK (1) DK0723716T3 (es)
ES (1) ES2126153T3 (es)
WO (1) WO1995010870A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529376A1 (de) * 1995-08-10 1997-02-13 Sel Alcatel Ag Optisches TDMA-Ringnetz mit einer zentralen Sende- und Empfangseinrichtung
CN1218558A (zh) * 1996-05-08 1999-06-02 英国电讯有限公司 光时钟分割
JP3145941B2 (ja) * 1997-01-13 2001-03-12 日本電気株式会社 光機能増幅素子及びその動作方法
GB9719895D0 (en) 1997-09-18 1997-11-19 British Telecomm A method of obtaining an optical signal stream
WO1999043057A1 (en) * 1998-02-20 1999-08-26 Molecular Optoelectronics Corporation Optical amplifier and process for amplifying an optical signal propagating in a fiber optic employing an overlay waveguide and stimulated emission
JP3961153B2 (ja) 1999-05-14 2007-08-22 富士通株式会社 光クロックの再生及び適用のための方法、装置及びシステム
WO2002063729A1 (en) * 2001-02-08 2002-08-15 Frame Photonics Self seeded multiple wavelength generation
US7840495B2 (en) * 2001-08-03 2010-11-23 Jay Levenson System and method for the payment and accounting of petty disbursements
US7557977B2 (en) * 2003-06-03 2009-07-07 Kilolambda Tech Ltd Laser pulse generator
US7949019B2 (en) * 2007-01-19 2011-05-24 The General Hospital Wavelength tuning source based on a rotatable reflector
US20140084794A1 (en) * 2012-09-22 2014-03-27 Richard Jeff Garcia Method for programming a LED light using a light sensor
JP2015103831A (ja) 2013-11-21 2015-06-04 富士通株式会社 光分岐装置および光挿入装置
US10389558B2 (en) * 2016-10-03 2019-08-20 Mediatek Inc. Method and apparatus for synchronization

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016037A1 (en) * 1991-03-01 1992-09-17 Australian And Overseas Telecommunications Corporation Limited Modelocked lasers
FR2700895B1 (fr) * 1993-01-28 1995-03-03 Jean Debeau Procédé et dispositif de génération d'impulsions optiques.
JPH06318754A (ja) * 1993-05-10 1994-11-15 Matsushita Electric Ind Co Ltd 光ファイバ増幅器および光信号伝送システム
IT1272640B (it) * 1993-09-16 1997-06-26 Pirelli Cavi Spa Generatore laser a fibra ottica a concatenamento modale passivo a commutazione non lineare di polarizzazione
US5513194A (en) * 1994-06-30 1996-04-30 Massachusetts Institute Of Technology Stretched-pulse fiber laser

Also Published As

Publication number Publication date
CA2171337C (en) 2000-03-28
CN1133652A (zh) 1996-10-16
CN1096137C (zh) 2002-12-11
EP0723716B1 (en) 1998-11-25
DK0723716T3 (da) 1999-08-09
JPH09505688A (ja) 1997-06-03
DE69414876D1 (de) 1999-01-07
US5796765A (en) 1998-08-18
EP0723716A1 (en) 1996-07-31
AU7820994A (en) 1995-05-04
WO1995010870A1 (en) 1995-04-20
CA2171337A1 (en) 1995-04-20
DE69414876T2 (de) 1999-04-22
AU676387B2 (en) 1997-03-06

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