Patents by Inventor Stuart M. Abbott

Stuart M. Abbott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for monitoring an optical communication system
    Patent number: 7388657
    Abstract: A monitoring system and method may be used to monitor an optical communication system. A monitoring system and method may be used to derive loop gain data sets from optical time domain reflectometry (OTDR) or coherent optical time domain reflectometry (COTDR) data. A monitoring system and method may also use differential monitoring techniques to obtain data representing gain tilt in the transmission system and to locate an anomalous loss or gain in the transmission system.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: June 17, 2008
    Assignee: Tyco Telecommunications (US) Inc.
    Inventor: Stuart M. Abbott
  • Method and apparatus for providing chromatic dispersion compensation in a wavelength division multiplexed optical transmission system
    Patent number: 6567577
    Abstract: A WDM optical communication system is provided that includes a transmitter and a receiver. An optical fiber transmission path couples the transmitter to the receiver. The transmission path includes at least one repeater having an optical amplifier located therein. A dispersion compensator is disposed at an intermediate point along the transmission path. The intermediate point is located outside of the repeater. The compensator includes a wavelength routing device for dividing a signal having a prescribed bandwidth into a plurality of distinct sub-bands. A plurality of output paths is provided for respectively receiving the plurality of distinct sub-bands. The dispersion compensator also includes a dispersion compensating optical element coupled to each of the output paths. Each dispersion compensating optical element substantially compensates for dispersion at a prescribed wavelength within the bandpass of its respective sub-band.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: May 20, 2003
    Assignee: Tyco Telecommunications (US) Inc.
    Inventors: Stuart M. Abbott, Neal Bergano, Stephen G. Evangelides, Ekaterina Golovchenko, George Harvey, Franklin W. Kerfoot, III, Chinlon Lin, Bo Pedersen
  • Method and apparatus for providing chromatic dispersion compensation in a wavelength division multiplexed optical transmission system
    Publication number: 20010028758
    Abstract: A WDM optical communication system is provided that includes a transmitter and a receiver. An optical fiber transmission path couples the transmitter to the receiver. The transmission path includes at least one repeater having an optical amplifier located therein. A dispersion compensator is disposed at an intermediate point along the transmission path. The intermediate point is located outside of the repeater. The compensator includes a wavelength routing device for dividing a signal having a prescribed bandwidth into a plurality of distinct sub-bands. A plurality of output paths is provided for respectively receiving the plurality of distinct sub-bands. The dispersion compensator also includes a dispersion compensating optical element coupled to each of the output paths. Each dispersion compensating optical element substantially compensates for dispersion at a prescribed wavelength within the bandpass of its respective sub-band.
    Type: Application
    Filed: February 8, 2001
    Publication date: October 11, 2001
    Inventors: Stuart M. Abbott, Neal Bergano, Stephen G. Evangelides, Ekaterina Golovchenko, George Harvey, Franklin W. Kerfoot, Chinlon Lin, Bo Pedersen
  • METHOD AND APPARATUS FOR PROVIDING CHROMATIC DISPERSION COMPENSATION IN A WAVELENGTH DIVISION MULTIPLEXED OPTICAL TRANSMISSION SYSTEM
    Publication number: 20010003549
    Abstract: A WDM optical communication system is provided that includes a transmitter and a receiver. An optical fiber transmission path couples the transmitter to the receiver. The transmission path includes at least one repeater having an optical amplifier located therein. A dispersion compensator is disposed at an intermediate point along the transmission path. The intermediate point is located outside of the repeater. The compensator includes a wavelength routing device for dividing a signal having a prescribed bandwidth into a plurality of distinct sub-bands. A plurality of output paths is provided for respectively receiving the plurality of distinct sub-bands. The dispersion compensator also includes a dispersion compensating optical element coupled to each of the output paths. Each dispersion compensating optical element substantially compensates for dispersion at a prescribed wavelength within the bandpass of its respective sub-band.
    Type: Application
    Filed: July 14, 1998
    Publication date: June 14, 2001
    Inventors: STUART M. ABBOTT, NEAL S. BERGANO, STEPHEN G. EVANGELIDES, EKATERINA GOLOVCHENKO, GEORGE HARVEY, FRANKLIN W. KERFOOT, CHINLON LIN, BO PEDERSEN