WO2004054138A3 - Coherent optical detection and signal processing method and system - Google Patents

Coherent optical detection and signal processing method and system Download PDF

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Publication number
WO2004054138A3
WO2004054138A3 PCT/US2003/039138 US0339138W WO2004054138A3 WO 2004054138 A3 WO2004054138 A3 WO 2004054138A3 US 0339138 W US0339138 W US 0339138W WO 2004054138 A3 WO2004054138 A3 WO 2004054138A3
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WO
WIPO (PCT)
Prior art keywords
signal
signal processing
processing method
optical detection
coherent optical
Prior art date
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PCT/US2003/039138
Other languages
French (fr)
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WO2004054138A2 (en
Inventor
Michael G Taylor
Original Assignee
Michael G Taylor
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 Michael G Taylor filed Critical Michael G Taylor
Priority to ES03812904.5T priority Critical patent/ES2464441T3/en
Priority to AU2003296411A priority patent/AU2003296411A1/en
Priority to EP03812904.5A priority patent/EP1570593B1/en
Publication of WO2004054138A2 publication Critical patent/WO2004054138A2/en
Publication of WO2004054138A3 publication Critical patent/WO2004054138A3/en

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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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6161—Compensation of chromatic dispersion
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6162—Compensation of polarization related effects, e.g., PMD, PDL
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/63—Homodyne, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/64—Heterodyne, i.e. coherent receivers where, after the opto-electronic conversion, an electrical signal at an intermediate frequency [fIF] is obtained

Abstract

A method and system of coherent detection of optical signals. The system utilizes a digital signal processor (36) to recover an incoming optical signal. The system employs a local oscillator (56), which does not need to be phase locked to the signal. The signal may be consistently recovered, even when the polarization state varies over time. Additionally, the signal may be recovered when it comprises two channels of the same wavelength that are polarization multiplexed together. In addition, any impairment to the signal may be reversed or eliminated.
PCT/US2003/039138 2002-12-11 2003-12-10 Coherent optical detection and signal processing method and system WO2004054138A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES03812904.5T ES2464441T3 (en) 2002-12-11 2003-12-10 Method and coherent optical detection and signal processing system
AU2003296411A AU2003296411A1 (en) 2002-12-11 2003-12-10 Coherent optical detection and signal processing method and system
EP03812904.5A EP1570593B1 (en) 2002-12-11 2003-12-10 Coherent optical detection and signal processing method and system

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US43250002P 2002-12-11 2002-12-11
US60/432,500 2002-12-11
US44574203P 2003-02-07 2003-02-07
US60/445,742 2003-02-07
US10/728,247 2003-12-04
US10/728,247 US7460793B2 (en) 2002-12-11 2003-12-04 Coherent optical detection and signal processing method and system

Publications (2)

Publication Number Publication Date
WO2004054138A2 WO2004054138A2 (en) 2004-06-24
WO2004054138A3 true WO2004054138A3 (en) 2004-12-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/039138 WO2004054138A2 (en) 2002-12-11 2003-12-10 Coherent optical detection and signal processing method and system

Country Status (7)

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US (3) US7460793B2 (en)
EP (5) EP1570593B1 (en)
AU (1) AU2003296411A1 (en)
DK (2) DK2498424T3 (en)
ES (1) ES2464441T3 (en)
PT (1) PT1570593E (en)
WO (1) WO2004054138A2 (en)

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US20090142064A1 (en) 2009-06-04
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