Patents by Inventor Joseph M. Lukens

Joseph M. Lukens 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).

  • Publication number: 20200341347
    Abstract: A nonlinear fiber interferometer is disclosed suitable for fiber sensor and other applications. A first nonlinear fiber section amplifies probe and conjugate sidebands of a pump through four-wave mixing. A second section introduces a phase shift to be measured, for example from a sensor. A third nonlinear fiber section amplifies with phase-sensitive gain to increase signal-to-noise ratio. Based on phase-sensitive output power of probe and/or conjugate components, the phase shift can be measured. Superior performance can be obtained by balancing gain between the (first and third) nonlinear sections. Non-fiber, for example photonic integrated circuit, embodiments are disclosed. Differential sensing, alternative detection schemes, sensing applications, associated methods, and other variations are disclosed.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Applicant: UT-Battelle, LLC
    Inventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
  • Publication number: 20200274703
    Abstract: Methods of quantum key distribution include receiving a frequency bin photon at a location, selecting a frequency bin photon quantum key distribution measurement basis, with a quantum frequency processor, performing a measurement basis transformation on the received frequency bin photon so that the frequency bin photon is measurable in the selected frequency bin photon quantum key distribution measurement basis, and detecting the frequency bin photon in the selected quantum key distribution measurement basis and assigning a quantum key distribution key value based on the detection to a portion of a quantum key distribution key. Apparatus and methods for encoding, decoding, transmitting, and receiving frequency bin photons are disclosed.
    Type: Application
    Filed: February 26, 2020
    Publication date: August 27, 2020
    Inventors: Joseph M. Lukens, Pavel Lougovski
  • Patent number: 10725360
    Abstract: A nonlinear fiber interferometer is disclosed suitable for fiber sensor and other applications. A first nonlinear fiber section amplifies probe and conjugate sidebands of a pump through four-wave mixing. A second section introduces a phase shift to be measured, for example from a sensor. A third nonlinear fiber section amplifies with phase-sensitive gain to increase signal-to-noise ratio. Based on phase-sensitive output power of probe and/or conjugate components, the phase shift can be measured. Superior performance can be obtained by balancing gain between the (first and third) nonlinear sections. Non-fiber, for example photonic integrated circuit, embodiments are disclosed. Differential sensing, alternative detection schemes, sensing applications, associated methods, and other variations are disclosed.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: July 28, 2020
    Assignee: UT-Battelle, LLC
    Inventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
  • Patent number: 10605727
    Abstract: Nonlinear interferometers include a nonlinear optical medium that is situated to produce a conjugate optical beam in response to a pump beam and a probe beam. The pump, probe, and conjugate beams propagate displaced from each other along a common optical path. One of the beams is selectively phase shifted, and the beams are then returned to the nonlinear medium, with the selectively phase shift beam phase shifted again. The nonlinear medium provides phase sensitive gain to at least one of the probe or conjugate beams, and the amplified beam is detected to provide an estimate of the phase shift.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: March 31, 2020
    Assignee: UT-Battelle, LLC
    Inventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
  • Publication number: 20190346739
    Abstract: A nonlinear fiber interferometer is disclosed suitable for fiber sensor and other applications. A first nonlinear fiber section amplifies probe and conjugate sidebands of a pump through four-wave mixing. A second section introduces a phase shift to be measured, for example from a sensor. A third nonlinear fiber section amplifies with phase-sensitive gain to increase signal-to-noise ratio. Based on phase-sensitive output power of probe and/or conjugate components, the phase shift can be measured. Superior performance can be obtained by balancing gain between the (first and third) nonlinear sections. Non-fiber, for example photonic integrated circuit, embodiments are disclosed. Differential sensing, alternative detection schemes, sensing applications, associated methods, and other variations are disclosed.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Applicant: UT-Battelle, LLC
    Inventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
  • Patent number: 10175554
    Abstract: An apparatus for producing a single photon can comprise a modulator that modulates the wavelength of a pump beam based on wavelength of an idler photon of a signal/idler photon pair. A wavelength division multiplexer combines the modulated pump beam and the signal photon in a non-linear element to produce an output photon having a preselected wavelength based on signal photon wavelength and a wavelength of the modulated pump beam.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: January 8, 2019
    Assignee: UT-Battelle, LLC
    Inventors: Warren P. Grice, Joseph M. Lukens, Nicholas A. Peters
  • Publication number: 20180231868
    Abstract: An apparatus for producing a single photon can comprise a modulator that modulates the wavelength of a pump beam based on wavelength of an idler photon of a signal/idler photon pair. A wavelength division multiplexer combines the modulated pump beam and the signal photon in a non-linear element to produce an output photon having a preselected wavelength based on signal photon wavelength and a wavelength of the modulated pump beam.
    Type: Application
    Filed: December 1, 2017
    Publication date: August 16, 2018
    Inventors: Warren P. Grice, Joseph M. Lukens, Nicholas A. Peters
  • Publication number: 20170315054
    Abstract: Nonlinear interferometers include a nonlinear optical medium that is situated to produce a conjugate optical beam in response to a pump beam and a probe beam. The pump, probe, and conjugate beams propagate displaced from each other along a common optical path. One of the beams is selectively phase shifted, and the beams are then returned to the nonlinear medium, with the selectively phase shift beam phase shifted again. The nonlinear medium provides phase sensitive gain to at least one of the probe or conjugate beams, and the amplified beam is detected to provide an estimate of the phase shift.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 2, 2017
    Applicant: UT-Battelle, LLC
    Inventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser