Patents by Inventor Gregory M. Bubel

Gregory M. Bubel 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).

  • Tunable dispersion compensator with minimum differential group delay
    Patent number: 8380019
    Abstract: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: February 19, 2013
    Assignee: OFS Fitel, LLC
    Inventors: Gregory M. Bubel, William R. Holland, David J. Kudelko, Yaowen Li, Paul S. Westbrook
  • Multi-core fiber grating sensor
    Patent number: 8123400
    Abstract: A twin core fiber for sensor applications is developed. It is particularly useful in de-coupling the strain and temperature and thus obtaining both measurement parameters at the same time and location. It is also particularly useful for measuring the temperature in a high humidity environment. The twin core fiber has two cores and each of the cores having a different dopant regime. Also, each of the cores includes a grating having substantially the same grating period.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: February 28, 2012
    Assignee: OFS Fitel, LLC
    Inventors: Matthew J Andrejco, Gregory M Bubel, David J Kudelko, Yaowen Li, Man F Yan
  • TUNABLE DISPERSION COMPENSATOR WITH MINIMUM DIFFERENTIAL GROUP DELAY
    Publication number: 20110110619
    Abstract: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 12, 2011
    Applicant: OFS Fitel, LLC
    Inventors: Gregory M. Bubel, William R. Holland, David J. Kudelko, Yaowen Li, Paul S. Westbrook
  • Tunable dispersion compensator with minimum differential group delay
    Patent number: 7831114
    Abstract: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.
    Type: Grant
    Filed: January 11, 2009
    Date of Patent: November 9, 2010
    Assignee: OFS Fitel LLC
    Inventors: Gregory M. Bubel, William R. Holland, David J. Kudelko, Yaowen Li, Paul S. Westbrook
  • Multi-Core Fiber Grating Sensor
    Publication number: 20090262779
    Abstract: A twin core fiber for sensor applications is developed. It is particularly useful in de-coupling the strain and temperature and thus obtaining both measurement parameters at the same time and location. It is also particularly useful for measuring the temperature in a high humidity environment. The twin core fiber has two cores and each of the cores having a different dopant regime. Also, each of the cores includes a grating having substantially the same grating period.
    Type: Application
    Filed: February 17, 2009
    Publication date: October 22, 2009
    Applicant: OFS Fitel, LLC
    Inventors: Matthew J. Andrejco, Gregory M. Bubel, David J. Kudelko, Yaowen Li, Man F. Yan
  • Tunable Dispersion Compensator with Minimum Differential Group Delay
    Publication number: 20090185771
    Abstract: In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD(bias) having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.
    Type: Application
    Filed: January 11, 2009
    Publication date: July 23, 2009
    Applicant: Furukawa Electric North America, Inc.
    Inventors: Gregory M. Bubel, William R. Holland, David J. Kudelko, Yaowen Li, Paul S. Westbrook