AU2001269315A1 - Optical pulse train generator - Google Patents

Optical pulse train generator

Info

Publication number
AU2001269315A1
AU2001269315A1 AU2001269315A AU6931501A AU2001269315A1 AU 2001269315 A1 AU2001269315 A1 AU 2001269315A1 AU 2001269315 A AU2001269315 A AU 2001269315A AU 6931501 A AU6931501 A AU 6931501A AU 2001269315 A1 AU2001269315 A1 AU 2001269315A1
Authority
AU
Australia
Prior art keywords
sub
optical
pulse train
sinusoidal
modulator
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.)
Abandoned
Application number
AU2001269315A
Inventor
Robert Anthony Griffin
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.)
Lumentum Technology UK Ltd
Original Assignee
Marconi Caswell 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 Marconi Caswell Ltd filed Critical Marconi Caswell Ltd
Publication of AU2001269315A1 publication Critical patent/AU2001269315A1/en
Abandoned 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
    • 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
    • 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 
    • G02F1/21—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  by interference
    • G02F1/225—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  by interference in an optical waveguide structure
    • 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
    • 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
    • H04B10/508—Pulse generation, e.g. generation of solitons
    • 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 
    • G02F1/21—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  by interference
    • G02F1/212—Mach-Zehnder type
    • 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 
    • G02F1/21—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  by interference
    • G02F1/225—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  by interference in an optical waveguide structure
    • G02F1/2257—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  by interference in an optical waveguide structure the optical waveguides being made of semiconducting material
    • 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
    • G02F2203/26—Pulse shaping; Apparatus or methods therefor
    • 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
    • H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity

Abstract

An optical pulse train generator ( 2 ) for use in the transmission of high speed optical data in a return-to-zero (RZ) signalling format is described. The generator ( 2 ) comprises a light source ( 4 ) operable to produce an unmodulated output; an electro-optic interferometric optical modulator ( 6 ) for intensity modulating the unmodulated optical output in dependence on an sinusoidal drive voltage (v<SUB>drive</SUB>) to produce a modulated optical signal, wherein the modulator ( 6 ) has an optical transmission versus drive voltage characteristic which is sinusoidal in form and wherein the modulator ( 6 ) is operable about a point of minimum optical transmission of said characteristic and said drive voltage has a amplitude (V<SUB>drive</SUB>) which exceeds one cycle (V<SUB>pi</SUB>) of said characteristic such that the modulated optical signal is non-sinusoidal; and optical pulse shaping means ( 8, 10, 12 ) for aligning the phase of the frequency components of said modulated optical signal to produce an optical pulse train in which the pulses are substantially transform limited.
AU2001269315A 2000-07-22 2001-07-09 Optical pulse train generator Abandoned AU2001269315A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0017937A GB2365140B (en) 2000-07-22 2000-07-22 Optical pulse train generator
GB0017937 2000-07-22
PCT/GB2001/003082 WO2002009325A1 (en) 2000-07-22 2001-07-09 Optical pulse train generator

Publications (1)

Publication Number Publication Date
AU2001269315A1 true AU2001269315A1 (en) 2002-02-05

Family

ID=9896093

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001269315A Abandoned AU2001269315A1 (en) 2000-07-22 2001-07-09 Optical pulse train generator

Country Status (7)

Country Link
US (1) US7099359B2 (en)
EP (1) EP1303932B1 (en)
AT (1) ATE328410T1 (en)
AU (1) AU2001269315A1 (en)
DE (1) DE60120176T2 (en)
GB (1) GB2365140B (en)
WO (1) WO2002009325A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6760142B2 (en) 2002-05-13 2004-07-06 Lucent Technologies Inc. Delay interferometer optical pulse generator
US6721081B1 (en) * 2002-09-26 2004-04-13 Corning Incorporated Variable duty cycle optical pulses
US20040240888A1 (en) * 2003-05-30 2004-12-02 Juerg Leuthold System and method for alternate mark inversion and duobinary optical transmission
JP2005192046A (en) 2003-12-26 2005-07-14 Fujitsu Ltd Pulse generation apparatus and method
US7426349B2 (en) * 2004-02-12 2008-09-16 Lucent Technologies Inc. Method of signal transmission in a WDM communication system
JP4574187B2 (en) * 2004-02-20 2010-11-04 富士通株式会社 Optical synchronizer
US7317845B2 (en) * 2004-06-23 2008-01-08 Lucent Technologies Inc. Optical modulator having reduced bandwidth requirements and method of operation thereof
US20080199124A1 (en) * 2005-08-29 2008-08-21 Tadao Nagatsuma OPTICAL DEVICE FOR GENERATING AND MODULATING THz AND OTHER HIGH FREQUENCY SIGNALS
US20080112705A1 (en) * 2006-11-13 2008-05-15 Optimer Photonics, Inc. Frequency selective mmw source
US8098185B2 (en) * 2006-11-13 2012-01-17 Battelle Memorial Institute Millimeter and sub-millimeter wave portal
EP2206255A4 (en) * 2007-09-20 2014-10-22 Ftl Systems Inc Highly tunable, low jitter optical clock generation
WO2009143897A1 (en) * 2008-05-30 2009-12-03 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for generating optical pulses
TWI396033B (en) * 2008-11-07 2013-05-11 Univ Nat Chiao Tung Multi - frequency electrical signal of the photoelectric device
US20100169037A1 (en) * 2008-12-29 2010-07-01 Texas Instruments Incorporated Flash memory threshold voltage characterization
US8049950B2 (en) * 2009-01-09 2011-11-01 Alcatel Lucent Tunable zero-chirp pulse generator using plasma dispersion phase modulator
DE102009050051A1 (en) * 2009-10-21 2011-04-28 Deutsche Telekom Ag Method for delaying optical pulses
EP2346191B1 (en) * 2010-01-13 2014-12-17 Xieon Networks S.à.r.l. Optical Modulator
CN102722039B (en) * 2011-03-31 2015-12-09 骁阳网络有限公司 Photomodulator
FR2986379B1 (en) * 2012-01-30 2017-03-17 Agilent Tech Inc (A Delaware Corporation) "ACCORDABLE LASER IN CONTINUOUS PHASE"
US11070020B2 (en) 2017-05-23 2021-07-20 Thorlabs, Inc. Sinusoidal phase modulation of mode-locked lasers
US10615564B2 (en) 2017-05-23 2020-04-07 Thorlabs, Inc. Sinusoidal phase modulation of mode-locked lasers
WO2021054970A1 (en) * 2019-09-20 2021-03-25 Thorlabs, Inc. Sinusoidal phase modulation of mode-locked lasers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627987A (en) * 1979-08-15 1981-03-18 Kokusai Denshin Denwa Co Ltd <Kdd> Semiconductor laser
US4866698A (en) * 1987-11-17 1989-09-12 The Boeing Company Multiplexed optical communication system
US5828682A (en) 1996-12-13 1998-10-27 Massachusetts Institute Of Technology Rational-harmonic apparatus and technique
JPH10206807A (en) 1997-01-16 1998-08-07 Oki Electric Ind Co Ltd Light pulse generating device
GB2354598A (en) * 1999-09-27 2001-03-28 Cit Alcatel An optical modulator
US20020141027A1 (en) * 2001-02-20 2002-10-03 Lagasse Michael J. Variable pulse width optical pulse generation with superposed multiple frequency drive

Also Published As

Publication number Publication date
GB2365140A (en) 2002-02-13
US7099359B2 (en) 2006-08-29
EP1303932B1 (en) 2006-05-31
GB0017937D0 (en) 2000-09-13
WO2002009325A1 (en) 2002-01-31
DE60120176D1 (en) 2006-07-06
US20040253000A1 (en) 2004-12-16
EP1303932A1 (en) 2003-04-23
DE60120176T2 (en) 2007-04-12
ATE328410T1 (en) 2006-06-15
GB2365140B (en) 2002-08-07

Similar Documents

Publication Publication Date Title
GB2365140B (en) Optical pulse train generator
CA2197624C (en) Hybrid single sideband optical modulator
EP0825733A3 (en) Method of generating duobinary signal and optical transmitter using the same method
CA2088330C (en) Optical pulse generator
CA2056121A1 (en) Optical Transmitter
CA2193754A1 (en) Synchronous polarization and phase modulation using a periodic waveform with complex harmonics for improved performance of optical transmission systems
SE9703001L (en) Optical transmitter system and method
CA2156430A1 (en) Generation of Optical Signals with RF Components
AU2001276404A1 (en) Frequency modulator using a waveform generator
EP1298819A3 (en) Apparatus and method for optical modulation
AU1304800A (en) Method and apparatus for generating a linearly modulated signal using polar modulation
EP0859266A3 (en) Multi-wavelength laser source
EP0964538A3 (en) Optical transmitter and optical transmission system using polarisation modulation
EP0782283A3 (en) Optical transmitting terminal for optical digital communication using polarization scrambling
EP1087256A3 (en) Optical modulator
WO2002103402A3 (en) Electro-optic waveguide modulator method and apparatus
US20030156774A1 (en) Unipolar electrical to bipolar optical converter
EP0909973A3 (en) Driving circuit for electro-absorption optical modulator
EP1404036A3 (en) Duobinary optical transmission apparatus
EP1569367A3 (en) Optical device for optical communication
US20020191262A1 (en) Optical transmitter and optical modulator
EP1517461A3 (en) Optical duobinary transmission device
JPH04216686A (en) Light transmitting equipment
WO2003017507A3 (en) Transmitter apparatus and methods using frequency doubling modulation
JPS643633A (en) Second harmonic wave intensity modulating system