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).
-
Patent number: 11953432Abstract: A system comprising a nonlinear medium (NLM), an optical transduction module, a dual homodyne detector and a processor is provided. The NLM receives at least a pump beam and issues the pump, probe and conjugate beams, where the beams are linearly polarized. Optics route the probe, the conjugate or both beams to the sample. The sample imparts polarization rotation to light that interacts therewith. The optical transduction module imparts to the interacted light an optical phase shift that is a 1:1 transduction of the polarization rotation, where at least one of the probe light or the conjugate light carries the imparted optical phase shift. The processor obtains the optical-phase shift based on respective detection signals from the dual homodyne detector and determines, based on the obtained optical-phase shift, at least one of a Faraday polarization rotation, a Kerr polarization rotation or a spin noise spectrum.Type: GrantFiled: July 29, 2022Date of Patent: April 9, 2024Assignee: UT-BATTELLE, LLCInventors: Benjamin J. Lawrie, Yun-Yi Pai, Chengyun Hua, Raphael C. Pooser, Claire E. Marvinney
-
Patent number: 11747710Abstract: 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: GrantFiled: August 1, 2022Date of Patent: September 5, 2023Assignee: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Publication number: 20230161220Abstract: A truncated non-linear interferometer-based sensor system includes an input port that receives an optical beam and a non-linear amplifier that amplifies the optical beam with a pump beam and renders a probe beam and a conjugate beam. The system’s local oscillators have a relationship with the respective beams. The system includes a sensor that transduces an input with the probe beam and the conjugate beam or their respective local oscillators. It includes one or more phase-sensitive detectors that detect a phase modulation between the respective local oscillators and the probe beam and the conjugate beam. Output from the phase-sensitive-detectors is based on the detected phase modulation. The phase-sensor-detectors include measurement circuitry that measure the phase signals. The measurement is the sum or difference of the phase signals in which the measured combination exhibit a quantum noise reduction in an intensity difference or a phase sum or an amplitude difference quadrature.Type: ApplicationFiled: January 23, 2023Publication date: May 25, 2023Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Petro Maksymovych
-
Publication number: 20230116165Abstract: 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: ApplicationFiled: August 1, 2022Publication date: April 13, 2023Applicant: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Publication number: 20230039230Abstract: A system comprising a nonlinear medium (NLM), an optical transduction module, a dual homodyne detector and a processor is provided. The NLM receives at least a pump beam and issues the pump, probe and conjugate beams, where the beams are linearly polarized. Optics route the probe, the conjugate or both beams to the sample. The sample imparts polarization rotation to light that interacts therewith. The optical transduction module imparts to the interacted light an optical phase shift that is a 1:1 transduction of the polarization rotation, where at least one of the probe light or the conjugate light carries the imparted optical phase shift. The processor obtains the optical-phase shift based on respective detection signals from the dual homodyne detector and determines, based on the obtained optical-phase shift, at least one of a Faraday polarization rotation, a Kerr polarization rotation or a spin noise spectrum.Type: ApplicationFiled: July 29, 2022Publication date: February 9, 2023Inventors: Benjamin J. Lawrie, Yun-Yi Pai, Chengyun Hua, Raphael C. Pooser, Claire E. Marvinney
-
Patent number: 11561453Abstract: A truncated non-linear interferometer-based sensor system includes an input that receives an optical beam and a non-linear amplifier that generates a probe beam and a conjugate beam from the optical beam. The system's local oscillators are related to the probe beam and the conjugate beam. The system includes a sensor that transduces an input with the probe beam and the conjugate beam. The transduction detects changes in the phase of each of the probe beam and the conjugate beam. The system's phase sensitive detectors detect phase modulations between the respective local oscillators, the probe beam, and the conjugate beam and outputs phase signals based on detected phase modulations. The system measures phase signals indicative of the sensor's input resulting from a sum or difference of the phase signals. The measurement exhibits a quantum noise reduction in an intensity difference, a phase sum, or an amplitude difference quadrature.Type: GrantFiled: September 10, 2021Date of Patent: January 24, 2023Assignee: UT-BATTELLE, LLCInventors: Raphael C. Pooser, Benjamin J. Lawrie, Petro Maksymovych
-
Patent number: 11402723Abstract: 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: GrantFiled: July 10, 2020Date of Patent: August 2, 2022Assignee: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Publication number: 20210405503Abstract: A truncated non-linear interferometer-based sensor system includes an input that receives an optical beam and a non-linear amplifier that generates a probe beam and a conjugate beam from the optical beam. The system's local oscillators are related to the probe beam and the conjugate beam. The system includes a sensor that transduces an input with the probe beam and the conjugate beam. The transduction detects changes in the phase of each of the probe beam and the conjugate beam. The system's phase sensitive detectors detect phase modulations between the respective local oscillators, the probe beam, and the conjugate beam and outputs phase signals based on detected phase modulations. The system measures phase signals indicative of the sensor's input resulting from a sum or difference of the phase signals. The measurement exhibits a quantum noise reduction in an intensity difference, a phase sum, or an amplitude difference quadrature.Type: ApplicationFiled: September 10, 2021Publication date: December 30, 2021Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Petro Maksymovych
-
Patent number: 11119386Abstract: A truncated non-linear interferometer-based atomic force microscope (AFM) includes an input port and a non-linear amplifier that renders a probe beam and a conjugate beam. The AFM includes local oscillators having a relationship with the probe beam and the conjugate beam. The displacement of the AFM's cantilever is transduced by the probe beam, and/or the conjugate beam or their respective local oscillators. The AFM's phase-sensitive detectors detect a phase modulation between the respective local oscillators and the probe beam and the conjugate beam. The detected phase modulation corresponds to the change in phase. The AFM's circuitry measures phase signals that are indicative of the cantilever displacement. The resulting measurement signals exhibit a quantum noise reduction in either the intensity difference or phase sum quadrature.Type: GrantFiled: December 18, 2019Date of Patent: September 14, 2021Assignee: UT-BATTELLE, LLCInventors: Raphael C. Pooser, Benjamin J. Lawrie, Petro Maksymovych
-
Publication number: 20210190819Abstract: A truncated non-linear interferometer-based atomic force microscope (AFM) includes an input port and a non-linear amplifier that renders a probe beam and a conjugate beam. The AFM includes local oscillators having a relationship with the probe beam and the conjugate beam. The displacement of the AFM's cantilever is transduced by the probe beam, and/or the conjugate beam or their respective local oscillators. The AFM's phase-sensitive detectors detect a phase modulation between the respective local oscillators and the probe beam and the conjugate beam. The detected phase modulation corresponds to the change in phase. The AFM's circuitry measures phase signals that are indicative of the cantilever displacement. The resulting measurement signals exhibit a quantum noise reduction in either the intensity difference or phase sum quadrature.Type: ApplicationFiled: December 18, 2019Publication date: June 24, 2021Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Petro Maksymovych
-
Publication number: 20200341347Abstract: 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: ApplicationFiled: July 10, 2020Publication date: October 29, 2020Applicant: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Patent number: 10725360Abstract: 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: GrantFiled: May 10, 2019Date of Patent: July 28, 2020Assignee: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Patent number: 10635403Abstract: 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: GrantFiled: September 26, 2018Date of Patent: April 28, 2020Assignee: UT-Battelle, LLCInventors: Raphael C. Pooser, Benjamin J. Lawrie, Bing Qi, Brian P. Williams
-
Publication number: 20200125332Abstract: 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: ApplicationFiled: September 26, 2018Publication date: April 23, 2020Inventors: Raphael C. Pooser, Benjamin J. Lawrie, Bing Qi, Brian P. Williams
-
Patent number: 10605727Abstract: 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: GrantFiled: April 28, 2017Date of Patent: March 31, 2020Assignee: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Publication number: 20190346739Abstract: 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: ApplicationFiled: May 10, 2019Publication date: November 14, 2019Applicant: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Patent number: 10110369Abstract: 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: GrantFiled: May 1, 2017Date of Patent: October 23, 2018Assignee: UT-Battelle, LLCInventors: Warren P. Grice, Raphael C. Pooser, Phani Teja Kuruganti, Philip G. Evans, Miljko Bobrek
-
Publication number: 20170315054Abstract: 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: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Applicant: UT-Battelle, LLCInventors: Joseph M. Lukens, Nicholas A. Peters, Raphael C. Pooser
-
Publication number: 20170317814Abstract: 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: ApplicationFiled: May 1, 2017Publication date: November 2, 2017Inventors: Warren P. Grice, Raphael C. Pooser, Phani Teja Kuruganti, Philip G. Evans, Miljko Bobrek
-
Patent number: 9773876Abstract: 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: GrantFiled: June 28, 2016Date of Patent: September 26, 2017Assignee: UT-Battelle, LLCInventors: 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