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GB2414563B - Method and apparatus for producing high extinction ratio data modulation format - Google Patents

Method and apparatus for producing high extinction ratio data modulation format

Info

Publication number
GB2414563B
GB2414563B GB0500398A GB0500398A GB2414563B GB 2414563 B GB2414563 B GB 2414563B GB 0500398 A GB0500398 A GB 0500398A GB 0500398 A GB0500398 A GB 0500398A GB 2414563 B GB2414563 B GB 2414563B
Authority
GB
United Kingdom
Prior art keywords
producing high
extinction ratio
data modulation
modulation format
ratio data
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 - Fee Related
Application number
GB0500398A
Other versions
GB2414563A (en
GB0500398D0 (en
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.)
Azea Networks 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
Publication of GB0500398D0 publication Critical patent/GB0500398D0/en
Priority to US11/569,553 priority Critical patent/US20070280701A1/en
Priority to EP05746485A priority patent/EP1749357B1/en
Priority to PCT/GB2005/002049 priority patent/WO2005117305A1/en
Priority to DE602005014101T priority patent/DE602005014101D1/en
Publication of GB2414563A publication Critical patent/GB2414563A/en
Application granted granted Critical
Publication of GB2414563B publication Critical patent/GB2414563B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
GB0500398A 2004-05-25 2005-01-10 Method and apparatus for producing high extinction ratio data modulation format Expired - Fee Related GB2414563B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US11/569,553 US20070280701A1 (en) 2004-05-25 2005-05-24 Method and Apparatus for Producing High Extinction Ratio Data Modulation Formats
EP05746485A EP1749357B1 (en) 2004-05-25 2005-05-24 Method and apparatus for producing high extinction ratio data modulation formats
PCT/GB2005/002049 WO2005117305A1 (en) 2004-05-25 2005-05-24 Method and apparatus for producing high extinction ratio data modulation formats
DE602005014101T DE602005014101D1 (en) 2004-05-25 2005-05-24 METHOD AND DEVICE FOR CREATING DATA MODULATION SIZES WITH HIGH EXTINCTION RATIO

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0411684.4A GB0411684D0 (en) 2004-05-25 2004-05-25 Method and apparatus for producing high extinction ratio data modulation format

Publications (3)

Publication Number Publication Date
GB0500398D0 GB0500398D0 (en) 2005-02-16
GB2414563A GB2414563A (en) 2005-11-30
GB2414563B true GB2414563B (en) 2006-04-19

Family

ID=32671045

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0411684.4A Ceased GB0411684D0 (en) 2004-05-25 2004-05-25 Method and apparatus for producing high extinction ratio data modulation format
GB0500398A Expired - Fee Related GB2414563B (en) 2004-05-25 2005-01-10 Method and apparatus for producing high extinction ratio data modulation format

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0411684.4A Ceased GB0411684D0 (en) 2004-05-25 2004-05-25 Method and apparatus for producing high extinction ratio data modulation format

Country Status (2)

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

Citations (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
WO2003049332A1 (en) * 2001-11-30 2003-06-12 Bookham Technology Plc Photonic integrated device
WO2004005972A2 (en) * 2002-07-02 2004-01-15 Celight, Inc. Electro-optical integrated transmitter chip for arbitrary quadrature modulation of optical signals

Patent Citations (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
WO2003049332A1 (en) * 2001-11-30 2003-06-12 Bookham Technology Plc Photonic integrated device
WO2004005972A2 (en) * 2002-07-02 2004-01-15 Celight, Inc. Electro-optical integrated transmitter chip for arbitrary quadrature modulation of optical signals

Also Published As

Publication number Publication date
GB2414563A (en) 2005-11-30
GB0411684D0 (en) 2004-06-30
GB0500398D0 (en) 2005-02-16
DE602005014101D1 (en) 2009-06-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130110