Patents by Inventor Claude A. Martell

Claude A. Martell 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).

  • Transient control in optical transmission systems
    Patent number: 7251071
    Abstract: In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 31, 2007
    Assignee: Lucent Technologies Inc.
    Inventors: Daniel C. Kilper, Claude A. Martell, Narasimhan Raghavan, David A. Sadler, Christopher A. White
  • Transient control in optical transmission systems
    Publication number: 20060023297
    Abstract: In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Daniel Kilper, Claude Martell, Narasimhan Raghavan, David Sadler, Christopher White