Patents by Inventor Matthew T. CASHEN

Matthew T. CASHEN 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).

  • Patent number: 9252795
    Abstract: A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: February 2, 2016
    Assignee: Raytheon Company
    Inventors: Steven R. Wilkinson, Matthew T. Cashen, Todd O. Clatterbuck
  • Patent number: 9246302
    Abstract: Embodiments of an ultra-stable frequency reference generating system and methods for generating an ultra-stable frequency reference using a two-photon Rubidium transition are generally described herein. In some embodiments, a cavity-stabilized reference laser comprising a laser source is locked to a stabilized cavity. A Rubidium cell is interrogated by a stabilized laser output to cause at least a two-photon Rubidium transition and a detector may detect fluorescence resulting from spontaneous decay of the upper state Rubidium transition. The output of the detector is provided at a wavelength of the fluorescence to lock the cavity-stabilized reference laser to generate a stabilized laser output. A frequency comb stabilizer may be locked to the stabilized laser output to generate a super-continuum of optical wavelengths for use in generating an ultra-stable frequency reference.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: January 26, 2016
    Assignee: Raytheon Company
    Inventors: Steven R. Wilkinson, Todd O. Clatterbuck, Matthew T. Cashen, Gabriel N. Price, Jeffrey L. Sabala
  • Publication number: 20140321487
    Abstract: Embodiments of an ultra-stable frequency reference generating system and methods for generating an ultra-stable frequency reference using a two-photon Rubidium transition are generally described herein. In some embodiments, a cavity-stabilized reference laser comprising a laser source is locked to a stabilized cavity. A Rubidium cell is interrogated by a stabilized laser output to cause at least a two-photon Rubidium transition and a detector may detect fluorescence resulting from spontaneous decay of the upper state Rubidium transition. The output of the detector is provided at a wavelength of the fluorescence to lock the cavity-stabilized reference laser to generate a stabilized laser output. A frequency comb stabilizer may be locked to the stabilized laser output to generate a super-continuum of optical wavelengths for use in generating an ultra-stable frequency reference.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Inventors: Steven R. Wilkinson, Todd O. Clatterbuck, Matthew T. Cashen, Gabriel N. Price, Jeffrey L. Sabala
  • Patent number: 8780948
    Abstract: Embodiments of an ultra-stable frequency reference generating system and methods for generating an ultra-stable frequency reference using a two-photon Rubidium transition are generally described herein. In some embodiments, a cavity-stabilized reference laser comprising a laser source is locked to a stabilized cavity. A Rubidium cell is interrogated by a stabilized laser output to cause at least a two-photon Rubidium transition and a detector may detect fluorescence resulting from spontaneous decay of the upper state Rubidium transition. The output of the detector is provided at a wavelength of the fluorescence to lock the cavity-stabilized reference laser to generate a stabilized laser output. A frequency comb stabilizer may be locked to the stabilized laser output to generate a super-continuum of optical wavelengths for use in generating an ultra-stable frequency reference.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: July 15, 2014
    Assignee: Raytheon Company
    Inventors: Steven R. Wilkinson, Todd O. Clatterbuck, Matthew T. Cashen, Gabriel N. Price, Jeffrey L. Sabala
  • Publication number: 20140035687
    Abstract: A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 6, 2014
    Applicant: Raytheon Company
    Inventors: Steven R. Wilkinson, Matthew T. Cashen, Todd O. Clatterbuck
  • Patent number: 8565609
    Abstract: A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 22, 2013
    Assignee: Raytheon Company
    Inventors: Steven R. Wilkinson, Matthew T. Cashen, Todd O. Clatterbuck
  • Publication number: 20130215918
    Abstract: Embodiments of an ultra-stable frequency reference generating system and methods for generating an ultra-stable frequency reference using a two-photon Rubidium transition are generally described herein. In some embodiments, a cavity-stabilized reference laser comprising a laser source is locked to a stabilized cavity. A Rubidium cell is interrogated by a stabilized laser output to cause at least a two-photon Rubidium transition and a detector may detect fluorescence resulting from spontaneous decay of the upper state Rubidium transition. The output of the detector is provided at a wavelength of the fluorescence to lock the cavity-stabilized reference laser to generate a stabilized laser output. A frequency comb stabilizer may be locked to the stabilized laser output to generate a super-continuum of optical wavelengths for use in generating an ultra-stable frequency reference.
    Type: Application
    Filed: February 20, 2012
    Publication date: August 22, 2013
    Applicant: Raytheon Company
    Inventors: Steven R. Wilkinson, Todd O. Clatterbuck, Matthew T. Cashen, Gabriel N. Price, Jeffrey L. Sabala
  • Publication number: 20120154062
    Abstract: A system for distributing a reference oscillator signal includes a clock having a reference oscillator and a femtosecond laser stabilized by the reference oscillator. The system also includes at least one beamsplitter configured to split the femtosecond laser. The system further includes one or more remote nodes that are spaced from the clock. The remote nodes are configured to generate reference signals based on the split femtosecond laser.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: RAYTHEON COMPANY
    Inventors: Steven R. WILKINSON, Matthew T. CASHEN, Todd O. CLATTERBUCK