Patents by Inventor Raphael C. Pooser

Raphael C. Pooser 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
  • 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: 10635403
    Abstract: A system and method are provided to yield a QRNG based on homodyne detection of quantum noise (e.g., vacuum noise measured as shot noise) generated from a local oscillator, such as an LED. In one embodiment, a QRNG may be provided that is adjustable based on a control input to produce a random output that can be translated to one or more random data bits.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 28, 2020
    Assignee: UT-Battelle, LLC
    Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Bing Qi, Brian P. Williams
  • Publication number: 20200125332
    Abstract: A system and method are provided to yield a QRNG based on homodyne detection of quantum noise (e.g., vacuum noise measured as shot noise) generated from a local oscillator, such as an LED. In one embodiment, a QRNG may be provided that is adjustable based on a control input to produce a random output that can be translated to one or more random data bits.
    Type: Application
    Filed: September 26, 2018
    Publication date: April 23, 2020
    Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Bing Qi, Brian P. Williams
  • 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: 10110369
    Abstract: The present disclosure is directed to a system and method of distributing time information to enable synchronization in an authenticated manner via a quantum channel. A source device may transmit a timing signal, T on a communication channel from the source device to a receiver device. The timing signal T may be include a time or times stored in memory or calculated using a previously agreed upon formula. The method may include transmitting a quantum system Q from the source device to the receiver device. The quantum system may be prepared in a randomly chosen state and may be measured by the receiver device in a randomly chosen measurement basis.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 23, 2018
    Assignee: UT-Battelle, LLC
    Inventors: Warren P. Grice, Raphael C. Pooser, Phani Teja Kuruganti, Philip G. Evans, Miljko Bobrek
  • 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
  • Publication number: 20170317814
    Abstract: The present disclosure is directed to a system and method of distributing time information to enable synchronization in an authenticated manner via a quantum channel. A source device may transmit a timing signal, T on a communication channel from the source device to a receiver device. The timing signal T may be include a time or times stored in memory or calculated using a previously agreed upon formula. The method may include transmitting a quantum system Q from the source device to the receiver device. The quantum system may be prepared in a randomly chosen state and may be measured by the receiver device in a randomly chosen measurement basis.
    Type: Application
    Filed: May 1, 2017
    Publication date: November 2, 2017
    Inventors: Warren P. Grice, Raphael C. Pooser, Phani Teja Kuruganti, Philip G. Evans, Miljko Bobrek
  • Patent number: 9773876
    Abstract: An amorphous semiconductor composition includes 1 to 70 atomic percent iron, 15 to 65 atomic percent dysprosium, 15 to 35 atomic percent terbium, balance X, wherein X is at least one of an oxidizing element and a reducing element. The composition has an essentially amorphous microstructure, an optical transmittance of at least 50% in at least the visible spectrum and semiconductor electrical properties.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: September 26, 2017
    Assignee: UT-Battelle, LLC
    Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Arthur P. Baddorf, Abhinav Malasi, Humaira Taz, Annettee E. Farah, Ramakrishnan Kalyanaraman, Gerd Josef Mansfred Duscher, Maulik K. Patel
  • Publication number: 20170005170
    Abstract: An amorphous semiconductor composition includes 1 to 70 atomic percent iron, 15 to 65 atomic percent dysprosium, 15 to 35 atomic percent terbium, balance X, wherein X is at least one of an oxidizing element and a reducing element. The composition has an essentially amorphous microstructure, an optical transmittance of at least 50% in at least the visible spectrum and semiconductor electrical properties.
    Type: Application
    Filed: June 28, 2016
    Publication date: January 5, 2017
    Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Arthur P. Baddorf, Abhinav Malasi, Humaira Taz, Annettee E. Farah, Ramakrishnan Kalyanaraman, Gerd Josef Mansfred Duscher, Maulik K. Patel
  • Patent number: 9436436
    Abstract: A system and method for generating random numbers. The system may include a random number generator (RNG), such as a quantum random number generator (QRNG) configured to self-correct or adapt in order to substantially achieve randomness from the output of the RNG. By adapting, the RNG may generate a random number that may be considered random regardless of whether the random number itself is tested as such. As an example, the RNG may include components to monitor one or more characteristics of the RNG during operation, and may use the monitored characteristics as a basis for adapting, or self-correcting, to provide a random number according to one or more performance criteria.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: September 6, 2016
    Assignee: UT-Battelle, LLC
    Inventors: Travis S. Humble, Raphael C. Pooser
  • Patent number: 9335973
    Abstract: A quantum random number generator (QRNG) and a photon generator for a QRNG are provided. The photon generator may be operated in a spontaneous mode below a lasing threshold to emit photons. Photons emitted from the photon generator may have at least one random characteristic, which may be monitored by the QRNG to generate a random number. In one embodiment, the photon generator may include a photon emitter and an amplifier coupled to the photon emitter. The amplifier may enable the photon generator to be used in the QRNG without introducing significant bias in the random number and may enable multiplexing of multiple random numbers. The amplifier may also desensitize the photon generator to fluctuations in power supplied thereto while operating in the spontaneous mode. In one embodiment, the photon emitter and amplifier may be a tapered diode amplifier.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: May 10, 2016
    Assignee: UT-Battelle, LLC
    Inventor: Raphael C. Pooser
  • Patent number: 9172698
    Abstract: Functional randomness in security tokens (FRIST) may achieve improved security in two-factor authentication hardware tokens by improving on the algorithms used to securely generate random data. A system and method in one embodiment according to the present invention may allow for security of a token based on storage cost and computational security. This approach may enable communication where security is no longer based solely on onetime pads (OTPs) generated from a single cryptographic function (e.g., SHA-256).
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: October 27, 2015
    Assignee: UT-Battelle, LLC
    Inventors: Philip G. Evans, Travis S. Humble, Nathanael R. Paul, Raphael C. Pooser, Stacy J. Prowell
  • Publication number: 20150288517
    Abstract: Systems and methods for securely communicating with a server device are provided. Both the server device and a client device may be provided pre-shared keys, which may be based on a stream of random digits generated by a quantum random number generator. The client device may promote a new client-side key from among the pre-shared keys for use in secure communication with the server device in response to an event, such as a time-based event (e.g., passage of 30 seconds). The server device may be substantially synchronized with the client device such that a server-side key matches a client-side key being used to communicate securely with the server device.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Inventors: Philip G. Evans, Nathanael R. Paul, Raphael C. Pooser
  • Publication number: 20150227343
    Abstract: A system and method for generating random numbers. The system may include a random number generator (RNG), such as a quantum random number generator (QRNG) configured to self-correct or adapt in order to substantially achieve randomness from the output of the RNG. By adapting, the RNG may generate a random number that may be considered random regardless of whether the random number itself is tested as such. As an example, the RNG may include components to monitor one or more characteristics of the RNG during operation, and may use the monitored characteristics as a basis for adapting, or self-correcting, to provide a random number according to one or more performance criteria.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 13, 2015
    Inventors: Travis S. Humble, Raphael C. Pooser
  • Publication number: 20150193207
    Abstract: A quantum random number generator (QRNG) and a photon generator for a QRNG are provided. The photon generator may be operated in a spontaneous mode below a lasing threshold to emit photons. Photons emitted from the photon generator may have at least one random characteristic, which may be monitored by the QRNG to generate a random number. In one embodiment, the photon generator may include a photon emitter and an amplifier coupled to the photon emitter. The amplifier may enable the photon generator to be used in the QRNG without introducing significant bias in the random number and may enable multiplexing of multiple random numbers. The amplifier may also desensitize the photon generator to fluctuations in power supplied thereto while operating in the spontaneous mode. In one embodiment, the photon emitter and amplifier may be a tapered diode amplifier.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 9, 2015
    Inventor: Raphael C. Pooser