WO2004019503A3 - Method and apparatus for providing staggered groupwise dispersion compensation in a wdm optical communication system - Google Patents

Method and apparatus for providing staggered groupwise dispersion compensation in a wdm optical communication system Download PDF

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Publication number
WO2004019503A3
WO2004019503A3 PCT/US2003/026109 US0326109W WO2004019503A3 WO 2004019503 A3 WO2004019503 A3 WO 2004019503A3 US 0326109 W US0326109 W US 0326109W WO 2004019503 A3 WO2004019503 A3 WO 2004019503A3
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WO
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Patent type
Prior art keywords
sub
wdm optical
bands
dispersion
optical signal
Prior art date
Application number
PCT/US2003/026109
Other languages
French (fr)
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WO2004019503A2 (en )
WO2004019503A9 (en )
Inventor
Stephen G Evangelides Jr
Original Assignee
Red Sky Systems Inc
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
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25Arrangements specific to fibre transmission
    • H04B10/2507Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/25133Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion including a lumped electrical or optical dispersion compensator ; optical dispersion compensators involving optical fibres per se G02B6/293

Abstract

A method and apparatus (Fig 1) is provided for compensating for dispersion in a WDM optical communication system that includes a transmitter, receiver, and an optical fiber transmission path coupling the transmitter to the receiver. The method begins by imparting dispersion precompensation to a WDM optical signal having a prescribed bandwidth before the WDM optical signal traverses the optical fiber transmission path (140). The dispersion compensation is provided by first dividing the prescribed bandwidth of the WDM optical signal into a first plurality of sub-bands, and, within each of the first plurality of sub-bands, compensating each wavelength in the sub-band for dispersion by imparting a first fraction of a delay that would be needed to compensate for dispersion at a prescribed wavelength. The prescribed wavelength is equal to an average of the wavelengths located in the sub-band. The first plurality of sub-bands are then recombined to reconstitute the WDM optical signal and the reconstituted WDM optical signal is directed onto the optical fiber transmission path. The method continues by imparting dispersion postcompensation to the WDM optical signal after the WDM optical signal traverses the optical fiber transmission path by dividing the prescribed bandwidth of the WDM optical signal into a second plurality of sub-bands, and, within each of the second plurality of sub-bands, compensating each wavelength in the sub-band for dispersion by imparting a second fraction of a delay that would be needed to compensate for dispersion at a prescribed wavelength (340). The prescribed wavelength is equal to an average of the wavelengths located in the sub-band. The wavelengths in the sub-bands of the first plurality of sub-bands do not form a one-to-one correspondence to the wavelengths in the sub-bands of the second plurality of sub-bands.
PCT/US2003/026109 2002-08-20 2003-08-20 Method and apparatus for providing staggered groupwise dispersion compensation in a wdm optical communication system WO2004019503A9 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US40458502 true 2002-08-20 2002-08-20
US60/404,585 2002-08-20
US43035803 true 2003-05-06 2003-05-06
US10/430,358 2003-05-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2003265538A AU2003265538A1 (en) 2002-08-20 2003-08-20 Method and apparatus for providing staggered groupwise dispersion compensation in a wdm optical communication system

Publications (3)

Publication Number Publication Date
WO2004019503A2 true WO2004019503A2 (en) 2004-03-04
WO2004019503A3 true true WO2004019503A3 (en) 2004-05-13
WO2004019503A9 true WO2004019503A9 (en) 2004-07-22

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PCT/US2003/026109 WO2004019503A9 (en) 2002-08-20 2003-08-20 Method and apparatus for providing staggered groupwise dispersion compensation in a wdm optical communication system

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WO (1) WO2004019503A9 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003530184A (en) 2000-04-17 2003-10-14 ビボメトリックス,インコーポレイテッド Monitoring device, system and storage medium for monitoring a physiological signs ambulatory
US9492084B2 (en) 2004-06-18 2016-11-15 Adidas Ag Systems and methods for monitoring subjects in potential physiological distress
US9504410B2 (en) 2005-09-21 2016-11-29 Adidas Ag Band-like garment for physiological monitoring
US9833184B2 (en) 2006-10-27 2017-12-05 Adidas Ag Identification of emotional states using physiological responses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6021235A (en) * 1997-07-31 2000-02-01 Kokusai Denshin Denwa Kabushiki-Kaisha Wavelength-division multiplexing optical transmission system
US6137604A (en) * 1996-12-04 2000-10-24 Tyco Submarine Systems, Ltd. Chromatic dispersion compensation in wavelength division multiplexed optical transmission systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137604A (en) * 1996-12-04 2000-10-24 Tyco Submarine Systems, Ltd. Chromatic dispersion compensation in wavelength division multiplexed optical transmission systems
US6021235A (en) * 1997-07-31 2000-02-01 Kokusai Denshin Denwa Kabushiki-Kaisha Wavelength-division multiplexing optical transmission system

Also Published As

Publication number Publication date Type
WO2004019503A2 (en) 2004-03-04 application
WO2004019503A9 (en) 2004-07-22 application

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