DE602005014101D1 - METHOD AND DEVICE FOR CREATING DATA MODULATION SIZES WITH HIGH EXTINCTION RATIO - Google Patents

METHOD AND DEVICE FOR CREATING DATA MODULATION SIZES WITH HIGH EXTINCTION RATIO

Info

Publication number
DE602005014101D1
DE602005014101D1 DE602005014101T DE602005014101T DE602005014101D1 DE 602005014101 D1 DE602005014101 D1 DE 602005014101D1 DE 602005014101 T DE602005014101 T DE 602005014101T DE 602005014101 T DE602005014101 T DE 602005014101T DE 602005014101 D1 DE602005014101 D1 DE 602005014101D1
Authority
DE
Germany
Prior art keywords
extinction ratio
data modulation
creating data
high extinction
modulation sizes
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.)
Active
Application number
DE602005014101T
Other languages
German (de)
Inventor
Richard Oberland
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.)
Xtera Communications Ltd
Original Assignee
Azea Networks 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 Azea Networks Ltd filed Critical Azea Networks Ltd
Priority claimed from PCT/GB2005/002049 external-priority patent/WO2005117305A1/en
Publication of DE602005014101D1 publication Critical patent/DE602005014101D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H04B10/5053—Laser transmitters using external modulation using a parallel, i.e. shunt, 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
    • H04B10/516—Details of coding or modulation
    • H04B10/5165—Carrier suppressed; Single sideband; Double sideband or vestigial
    • 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
    • H04B10/516—Details of coding or modulation
    • H04B10/5167—Duo-binary; Alternative mark inversion; Phase shaped binary transmission
DE602005014101T 2004-05-25 2005-05-24 METHOD AND DEVICE FOR CREATING DATA MODULATION SIZES WITH HIGH EXTINCTION RATIO Active DE602005014101D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0411684A GB0411684D0 (en) 2004-05-25 2004-05-25 Method and apparatus for producing high extinction ratio data modulation format
GB0500398A GB2414563B (en) 2004-05-25 2005-01-10 Method and apparatus for producing high extinction ratio data modulation format
PCT/GB2005/002049 WO2005117305A1 (en) 2004-05-25 2005-05-24 Method and apparatus for producing high extinction ratio data modulation formats

Publications (1)

Publication Number Publication Date
DE602005014101D1 true DE602005014101D1 (en) 2009-06-04

Family

ID=32671045

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005014101T Active DE602005014101D1 (en) 2004-05-25 2005-05-24 METHOD AND DEVICE FOR CREATING DATA MODULATION SIZES WITH HIGH EXTINCTION RATIO

Country Status (2)

Country Link
DE (1) DE602005014101D1 (en)
GB (2) GB0411684D0 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6522438B1 (en) * 1999-10-04 2003-02-18 Lucent Technologies Inc. High-speed optical duobinary modulation scheme
GB2383424B (en) * 2001-11-30 2004-12-22 Marconi Optical Components Ltd Photonic integrated device
AU2003278698A1 (en) * 2002-07-02 2004-01-23 Celight, Inc. Electro-optical integrated transmitter chip for arbitrary quadrature modulation of optical signals

Also Published As

Publication number Publication date
GB0500398D0 (en) 2005-02-16
GB0411684D0 (en) 2004-06-30
GB2414563A (en) 2005-11-30
GB2414563B (en) 2006-04-19

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: XTERA COMMUNICATIONS LTD., ROMFORD, ESSEX, GB

8364 No opposition during term of opposition