Patents by Inventor Peter Thomas Setsuda DeVore
Peter Thomas Setsuda DeVore 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).
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Patent number: 11923907Abstract: Devices, methods for analog-to-digital converters (ADCs) that perform high-dynamic range measurements based on optical techniques are disclosed. In one example aspect, an optical encoder includes a polarization rotator configured to receive a train of optical pulses, and an electro-optic (EO) modulator coupled to an output of the polarization rotator. The EO modulator is configured to receive a radio frequency (RF) signal and to produce a phase modulated signal in accordance with the RF signal. The optical encoder also includes a polarizing beam splitter coupled to the output of the EO modulator; and an optical hybrid configured to receive two optical signals from the polarizing beam splitter and to produce four optical outputs that are each phase shifted with respect to one another.Type: GrantFiled: July 17, 2020Date of Patent: March 5, 2024Assignee: Lawrence Livermore National Security, LLCInventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Alexander Thomas Wargo, Jason Thomas Chou
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Patent number: 11630368Abstract: Devices, methods and systems for generating wideband, high-fidelity arbitrary radio frequency (RF) passband signals are described. A voltage tunable optical filter for arbitrary RF passband signal generation includes a first input configured to receive a broadband optical pulse train, a second input configured to receive a first control voltage representative of an amplitude signal, an electrooptic modulator to receive the broadband optical pulse train and the first control voltage, to modulate the broadband optical pulse train in accordance with the amplitude signal, and to produce two complementary optical outputs that form two arms of an interferometer, an optical delay component to impart an optical path difference into one of the complementary outputs of the electrooptic modulator, and a combiner or a splitter to receive two complementary optical outputs of the electrooptic modulator after impartation of the optical path difference and to produce an output interference pattern of fringes.Type: GrantFiled: December 10, 2021Date of Patent: April 18, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventors: Apurva Shantharaj Gowda, Jacky Chak-Kee Chan, Peter Thomas Setsuda DeVore, David Simon Perlmutter, Jason Thomas Chou
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Patent number: 11575438Abstract: Devices, systems and methods for encoding information using optical components are described. Information associated with a first optical signal (e.g., an optical pump) is encoded onto the phase of a second optical signal (e.g., an optical probe) using cross phase modulation (XPM) in a non-linear optical medium. The optical signals are multiplexed together into the nonlinear optical medium. The probe experiences a modified index of refraction as it propagates through the medium and thus accumulates a phase change proportional to the intensity of the pump. The disclosed devices can be incorporated into larger components and systems for various applications such as scientific diagnostics, radar, remote sensing, wireless communications, and quantum computing that can benefit from encoding and generation of low noise, high resolution signals.Type: GrantFiled: October 13, 2021Date of Patent: February 7, 2023Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLCInventors: Brandon Walter Buckley, David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
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Publication number: 20220337317Abstract: Devices, methods for analog-to-digital converters (ADCs) that perform high-dynamic range measurements based on optical techniques are disclosed. In one example aspect, an optical encoder includes a polarization rotator configured to receive a train of optical pulses, and an electro-optic (EO) modulator coupled to an output of the polarization rotator. The EO modulator is configured to receive a radio frequency (RF) signal and to produce a phase modulated signal in accordance with the RF signal. The optical encoder also includes a polarizing beam splitter coupled to the output of the EO modulator; and an optical hybrid configured to receive two optical signals from the polarizing beam splitter and to produce four optical outputs that are each phase shifted with respect to one another.Type: ApplicationFiled: July 17, 2020Publication date: October 20, 2022Inventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Alexander Thomas Wargo, Jason Thomas Chou
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Patent number: 11444690Abstract: Methods, devices and systems for providing accurate measurements of timing errors using optical techniques are described. An example timing measurement device includes an optical hybrid that receives two optical pulse trains and produces two or more phase shifted optical outputs. The timing measurement device further includes two or more optical filters that receive the outputs of the optical hybrid to produce multiple pulse signals with distinctive frequency bands. The device also includes one or more photodetectors and analog-to-digital converters to receive to produce electrical signals in the digital domain corresponding to the optical outputs of the hybrid. A timing error associated with the optical pulse trains can be determined using the electrical signals in digital domain based on a computed phase difference between a first frequency band signal and a second frequency band signal and a computed frequency difference between the first frequency band signal and the second frequency band.Type: GrantFiled: June 10, 2020Date of Patent: September 13, 2022Assignee: Lawrence Livermore National Security, LLCInventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Joshua Linne Olson, Jason Thomas Chou
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Publication number: 20220231760Abstract: Methods, devices and systems for providing accurate measurements of timing errors using optical techniques are described. An example timing measurement device includes an optical hybrid that receives two optical pulse trains and produces two or more phase shifted optical outputs. The timing measurement device further includes two or more optical filters that receive the outputs of the optical hybrid to produce multiple pulse signals with distinctive frequency bands. The device also includes one or more photodetectors and analog-to-digital converters to receive to produce electrical signals in the digital domain corresponding to the optical outputs of the hybrid. A timing error associated with the optical pulse trains can be determined using the electrical signals in digital domain based on a computed phase difference between a first frequency band signal and a second frequency band signal and a computed frequency difference between the first frequency band signal and the second frequency band.Type: ApplicationFiled: February 9, 2022Publication date: July 21, 2022Inventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Joshua Linne Olson, Jason Thomas Chou
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Publication number: 20220100047Abstract: Devices, methods and systems for generating wideband, high-fidelity arbitrary radio frequency (RF) passband signals are described. A voltage tunable optical filter for arbitrary RF passband signal generation includes a first input configured to receive a broadband optical pulse train, a second input configured to receive a first control voltage representative of an amplitude signal, an electrooptic modulator to receive the broadband optical pulse train and the first control voltage, to modulate the broadband optical pulse train in accordance with the amplitude signal, and to produce two complementary optical outputs that form two arms of an interferometer, an optical delay component to impart an optical path difference into one of the complementary outputs of the electrooptic modulator, and a combiner or a splitter to receive two complementary optical outputs of the electrooptic modulator after impartation of the optical path difference and to produce an output interference pattern of fringes.Type: ApplicationFiled: December 10, 2021Publication date: March 31, 2022Inventors: Apurva Shantharaj Gowda, Jacky Chak-Kee Chan, Peter Thomas Setsuda DeVore, David Simon Perlmutter, Jason Thomas Chou
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Publication number: 20220085887Abstract: Devices, systems and methods for encoding information using optical components are described. Information associated with a first optical signal (e.g., an optical pump) is encoded onto the phase of a second optical signal (e.g., an optical probe) using cross phase modulation (XPM) in a non-linear optical medium. The optical signals are multiplexed together into the nonlinear optical medium. The probe experiences a modified index of refraction as it propagates through the medium and thus accumulates a phase change proportional to the intensity of the pump. The disclosed devices can be incorporated into larger components and systems for various applications such as scientific diagnostics, radar, remote sensing, wireless communications, and quantum computing that can benefit from encoding and generation of low noise, high resolution signals.Type: ApplicationFiled: October 13, 2021Publication date: March 17, 2022Inventors: Brandon Walter Buckley, David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
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Patent number: 11209714Abstract: Devices, methods and systems for generating wideband, high-fidelity arbitrary radio frequency (RF) passband signals are described. A voltage tunable optical filter for arbitrary RF passband signal generation includes a first input configured to receive a broadband optical pulse train, a second input configured to receive a first control voltage representative of an amplitude signal, an electrooptic modulator to receive the broadband optical pulse train and the first control voltage, to modulate the broadband optical pulse train in accordance with the amplitude signal, and to produce two complementary optical outputs that form two arms of an interferometer, an optical delay component to impart an optical path difference into one of the complementary outputs of the electrooptic modulator, and a combiner or a splitter to receive two complementary optical outputs of the electrooptic modulator after impartation of the optical path difference and to produce an output interference pattern of fringes.Type: GrantFiled: January 24, 2020Date of Patent: December 28, 2021Assignee: Lawrence Livermore National Security, LLCInventors: Apurva Shantharaj Gowda, Jacky Chak-Kee Chan, Peter Thomas Setsuda DeVore, David Simon Perlmutter, Jason Thomas Chou
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Patent number: 11184087Abstract: Devices, systems and methods for encoding information using optical components are described. Information associated with a first optical signal (e.g., an optical pump) is encoded onto the phase of a second optical signal (e.g., an optical probe) using cross phase modulation (XPM) in a non-linear optical medium. The optical signals are multiplexed together into the nonlinear optical medium. The probe experiences a modified index of refraction as it propagates through the medium and thus accumulates a phase change proportional to the intensity of the pump. The disclosed devices can be incorporated into larger components and systems for various applications such as scientific diagnostics, radar, remote sensing, wireless communications, and quantum computing that can benefit from encoding and generation of low noise, high resolution signals.Type: GrantFiled: April 10, 2020Date of Patent: November 23, 2021Assignee: Lawrence Livermore National Security, LLCInventors: Brandon Walter Buckley, David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
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Patent number: 11159241Abstract: Devices, methods for analog-to-digital converters (ADCs) that perform high-dynamic range measurements based on optical techniques are disclosed. In one example aspect, an optical encoder includes a polarization rotator configured to receive a train of optical pulses, and an electro-optic (EO) modulator coupled to an output of the polarization rotator. The EO modulator is configured to receive a radio frequency (RF) signal and to produce a phase modulated signal in accordance with the RF signal. The optical encoder also includes a polarizing beam splitter coupled to the output of the EO modulator; and an optical hybrid configured to receive two optical signals from the polarizing beam splitter and to produce four optical outputs that are each phase shifted with respect to one another.Type: GrantFiled: May 11, 2020Date of Patent: October 26, 2021Assignee: Lawrence Livermore National Security, LLCInventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Alexander Thomas Wargo, Jason Thomas Chou
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Patent number: 11032628Abstract: Device, methods and systems for the electronic demodulation of optically phase demodulated signals are described. An example optical local oscillator generator configured to generate a radio frequency (RF) tone at a desired RF frequency includes a first input configured to receive a broadband optical pulse train, a second input coupled to a delay line interferometer to receive a first control voltage for controlling a delay value of the interferometer and to produce an output optical pulse train, a dispersive element, coupled to the delay line interferometer, to map the output optical pulse train to a time-domain modulated optical pulse train, an optical-to-electrical converter, coupled to the dispersive element, to convert the time-domain modulated optical pulse train to an analog electrical signal, and an RF filter, coupled to the optical-to-electrical converter, to filter the analog electrical signal to generate the RF tone at the desired RF frequency.Type: GrantFiled: May 7, 2020Date of Patent: June 8, 2021Assignee: Lawrence Livermore National Security, LLCInventors: David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
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Publication number: 20210044353Abstract: Devices, systems and methods for encoding information using optical components are described. Information associated with a first optical signal (e.g., an optical pump) is encoded onto the phase of a second optical signal (e.g., an optical probe) using cross phase modulation (XPM) in a non-linear optical medium. The optical signals are multiplexed together into the nonlinear optical medium. The probe experiences a modified index of refraction as it propagates through the medium and thus accumulates a phase change proportional to the intensity of the pump. The disclosed devices can be incorporated into larger components and systems for various applications such as scientific diagnostics, radar, remote sensing, wireless communications, and quantum computing that can benefit from encoding and generation of low noise, high resolution signals.Type: ApplicationFiled: April 10, 2020Publication date: February 11, 2021Inventors: Brandon Walter Buckley, David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
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Publication number: 20210021337Abstract: Methods, devices and systems for providing accurate measurements of timing errors using optical techniques are described. An example timing measurement device includes an optical hybrid that receives two optical pulse trains and produces two or more phase shifted optical outputs. The timing measurement device further includes two or more optical filters that receive the outputs of the optical hybrid to produce multiple pulse signals with distinctive frequency bands. The device also includes one or more photodetectors and analog-to-digital converters to receive to produce electrical signals in the digital domain corresponding to the optical outputs of the hybrid. A timing error associated with the optical pulse trains can be determined using the electrical signals in digital domain based on a computed phase difference between a first frequency band signal and a second frequency band signal and a computed frequency difference between the first frequency band signal and the second frequency band.Type: ApplicationFiled: June 10, 2020Publication date: January 21, 2021Inventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Joshua Linne Olson, Jason Thomas Chou
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Publication number: 20210021914Abstract: Device, methods and systems for the electronic demodulation of optically phase demodulated signals are described. An example optical local oscillator generator configured to generate a radio frequency (RF) tone at a desired RF frequency includes a first input configured to receive a broadband optical pulse train, a second input coupled to a delay line interferometer to receive a first control voltage for controlling a delay value of the interferometer and to produce an output optical pulse train, a dispersive element, coupled to the delay line interferometer, to map the output optical pulse train to a time-domain modulated optical pulse train, an optical-to-electrical converter, coupled to the dispersive element, to convert the time-domain modulated optical pulse train to an analog electrical signal, and an RF filter, coupled to the optical-to-electrical converter, to filter the analog electrical signal to generate the RF tone at the desired RF frequency.Type: ApplicationFiled: May 7, 2020Publication date: January 21, 2021Inventors: David Simon Perlmutter, Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, Jason Thomas Chou
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Publication number: 20210018814Abstract: Devices, methods and systems for generating wideband, high-fidelity arbitrary radio frequency (RF) passband signals are described. A voltage tunable optical filter for arbitrary RF passband signal generation includes a first input configured to receive a broadband optical pulse train, a second input configured to receive a first control voltage representative of an amplitude signal, an electrooptic modulator to receive the broadband optical pulse train and the first control voltage, to modulate the broadband optical pulse train in accordance with the amplitude signal, and to produce two complementary optical outputs that form two arms of an interferometer, an optical delay component to impart an optical path difference into one of the complementary outputs of the electrooptic modulator, and a combiner or a splitter to receive two complementary optical outputs of the electrooptic modulator after impartation of the optical path difference and to produce an output interference pattern of fringes.Type: ApplicationFiled: January 24, 2020Publication date: January 21, 2021Inventors: Apurva Shantharaj Gowda, Jacky Chak-Kee Chan, Peter Thomas Setsuda DeVore, David Simon Perlmutter, Jason Thomas Chou
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Publication number: 20210021349Abstract: Devices, methods for analog-to-digital converters (ADCs) that perform high-dynamic range measurements based on optical techniques are disclosed. In one example aspect, an optical encoder includes a polarization rotator configured to receive a train of optical pulses, and an electro-optic (EO) modulator coupled to an output of the polarization rotator. The EO modulator is configured to receive a radio frequency (RF) signal and to produce a phase modulated signal in accordance with the RF signal. The optical encoder also includes a polarizing beam splitter coupled to the output of the EO modulator; and an optical hybrid configured to receive two optical signals from the polarizing beam splitter and to produce four optical outputs that are each phase shifted with respect to one another.Type: ApplicationFiled: May 11, 2020Publication date: January 21, 2021Inventors: Peter Thomas Setsuda DeVore, Apurva Shantharaj Gowda, David Simon Perlmutter, Alexander Thomas Wargo, Jason Thomas Chou
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Patent number: 10088735Abstract: An Optical Information Transfer Enhancer System includes a first system for producing an information bearing first optical wave that is impressed with a first information having a first information strength wherein the first optical wave has a first shape. A second system produces a second optical wave. An information strength enhancer module receives the first and said second optical waves and impresses the first optical wave upon the second optical wave via cross-phase modulation (XPM) to produce an information-strength-enhanced second optical wave having a second information strength that is greater than the first information strength of the first optical wave. Following a center-wavelength changer by an Optical Information Transfer Enhancer System improves its performance.Type: GrantFiled: November 21, 2017Date of Patent: October 2, 2018Assignee: Lawrence Livermore National Security, LLCInventors: Peter Thomas Setsuda DeVore, Jason T. Chou
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Patent number: 9857660Abstract: An Optical Information Transfer Enhancer System includes a first system for producing an information bearing first optical wave that is impressed with a first information having a first information strength wherein the first optical wave has a first shape. A second system produces a second optical wave. An information strength enhancer module receives the first and said second optical waves and impresses the first optical wave upon the second optical wave via cross-phase modulation (XPM) to produce an information-strength-enhanced second optical wave having a second information strength that is greater than the first information strength of the first optical wave. Following a center-wavelength changer by an Optical Information Transfer Enhancer System improves its performance.Type: GrantFiled: May 13, 2016Date of Patent: January 2, 2018Assignee: Lawrence Livermore National Security, LLCInventors: Peter Thomas Setsuda DeVore, Jason T. Chou