Patents by Inventor Andrew H. Cordes

Andrew H. Cordes 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 environmental effects using optical sensors
    Patent number: 7119325
    Abstract: An apparatus and method for determining a physical parameter affecting an optical sensor or a number of sensors in a network. The apparatus uses a narrow linewidth source at an emission wavelength ?e and an arrangement for varying the emission wavelength ?e of the radiation. An analysis module with curve fitting is used to generate a fit to the response signal obtained from the optical sensor. The physical parameter is determined form the fit rather than from the response signal. The apparatus can be employed with Bragg gratings, etalons, Fabry Perot elements or other optical sensors.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: October 10, 2006
    Assignee: Bookham Technology PLC
    Inventors: Jan-Willem Pieterse, Hoang Nguyen, Rosemary O. Abriam, Andrew H. Cordes
  • System and method for monitoring environmental effects using optical sensors
    Publication number: 20040245441
    Abstract: An apparatus and method for determining a physical parameter affecting an optical sensor or a number of sensors in a network. The apparatus uses a narrow linewidth source at an emission wavelength &lgr;e and an arrangement for varying the emission wavelength &lgr;e of the radiation. An analysis module with curve fitting is used to generate a fit to the response signal obtained from the optical sensor. The physical parameter is determined form the fit rather than from the response signal. The apparatus can be employed with Bragg gratings, etalons, Fabry Perot elements or other optical sensors.
    Type: Application
    Filed: January 27, 2004
    Publication date: December 9, 2004
    Inventors: Jan-Willem Pieterse, Hoang Nguyen, Rosemary O. Abriam, Andrew H. Cordes