Patents by Inventor Kevin O. Douglass
Kevin O. Douglass 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: 10942089Abstract: A deformometer includes: a cavity body; entry and exit optical cavity optics, such that the optical cavity produces filtered combined light from combined light; a first laser that provides first light; a second laser that provides second light; an optical combiner that: receives the first light; receives the second light; combines the first light and the second light; produces combined light from the first light and the second light; and communicates the combined light to the entry optical cavity optic; a beam splitter that: receives the filtered combined light; splits the filtered combined light; a first light detector in optical communication with the beam splitter and that: receives the first filtered light from the beam splitter; and produces a first cavity signal from the first filtered light; and a second light detector that: receives the second filtered light; and produces a second cavity signal from the second filtered light.Type: GrantFiled: July 24, 2019Date of Patent: March 9, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Kevin O. Douglass, Stephen P. Eckel, Patrick F. Egan, Jay H. Hendricks, Jack A. Stone, Jr.
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Patent number: 10935370Abstract: A deformometer includes: a cavity body; entry and exit optical cavity optics, such that the optical cavity produces filtered combined light from combined light; a first laser that provides first light; a second laser that provides second light; an optical combiner that: receives the first light; receives the second light; combines the first light and the second light; produces combined light from the first light and the second light; and communicates the combined light to the entry optical cavity optic; a beam splitter that: receives the filtered combined light; splits the filtered combined light; a first light detector in optical communication with the beam splitter and that: receives the first filtered light from the beam splitter; and produces a first cavity signal from the first filtered light; and a second light detector that: receives the second filtered light; and produces a second cavity signal from the second filtered light.Type: GrantFiled: July 24, 2019Date of Patent: March 2, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Zeeshan Ahmed, Kevin O. Douglass, Stephen P. Eckel, Patrick F. Egan, Jay H. Hendricks, Jack A. Stone, Jr.
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Patent number: 10816325Abstract: A deformometer includes: a cavity body; entry and exit optical cavity optics, such that the optical cavity produces filtered combined light from combined light; a first laser that provides first light; a second laser that provides second light; an optical combiner that: receives the first light; receives the second light; combines the first light and the second light; produces combined light from the first light and the second light; and communicates the combined light to the entry optical cavity optic; a beam splitter that: receives the filtered combined light; splits the filtered combined light; a first light detector in optical communication with the beam splitter and that: receives the first filtered light from the beam splitter; and produces a first cavity signal from the first filtered light; and a second light detector that: receives the second filtered light; and produces a second cavity signal from the second filtered light.Type: GrantFiled: July 24, 2019Date of Patent: October 27, 2020Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Zeeshan Ahmed, Kevin O. Douglass, Stephen P. Eckel, Patrick F. Egan, Jay H. Hendricks, Jack A. Stone, Jr.
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Publication number: 20200041379Abstract: A deformometer includes: a cavity body; entry and exit optical cavity optics, such that the optical cavity produces filtered combined light from combined light; a first laser that provides first light; a second laser that provides second light; an optical combiner that: receives the first light; receives the second light; combines the first light and the second light; produces combined light from the first light and the second light; and communicates the combined light to the entry optical cavity optic; a beam splitter that: receives the filtered combined light; splits the filtered combined light; a first light detector in optical communication with the beam splitter and that: receives the first filtered light from the beam splitter; and produces a first cavity signal from the first filtered light; and a second light detector that: receives the second filtered light; and produces a second cavity signal from the second filtered light.Type: ApplicationFiled: July 24, 2019Publication date: February 6, 2020Inventors: Kevin O. Douglass, Stephen P. Eckel, Patrick F. Egan, Jay H. Hendricks, Jack A. Stone, JR.
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Publication number: 20200041256Abstract: A deformometer includes: a cavity body; entry and exit optical cavity optics, such that the optical cavity produces filtered combined light from combined light; a first laser that provides first light; a second laser that provides second light; an optical combiner that: receives the first light; receives the second light; combines the first light and the second light; produces combined light from the first light and the second light; and communicates the combined light to the entry optical cavity optic; a beam splitter that: receives the filtered combined light; splits the filtered combined light; a first light detector in optical communication with the beam splitter and that: receives the first filtered light from the beam splitter; and produces a first cavity signal from the first filtered light; and a second light detector that: receives the second filtered light; and produces a second cavity signal from the second filtered light.Type: ApplicationFiled: July 24, 2019Publication date: February 6, 2020Inventors: Zeeshan Ahmed, Kevin O. Douglass, Stephen P. Eckel, Patrick F. Egan, Jay H. Hendricks, Jack A. Stone, JR.
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Publication number: 20200041255Abstract: A deformometer includes: a cavity body; entry and exit optical cavity optics, such that the optical cavity produces filtered combined light from combined light; a first laser that provides first light; a second laser that provides second light; an optical combiner that: receives the first light; receives the second light; combines the first light and the second light; produces combined light from the first light and the second light; and communicates the combined light to the entry optical cavity optic; a beam splitter that: receives the filtered combined light; splits the filtered combined light; a first light detector in optical communication with the beam splitter and that: receives the first filtered light from the beam splitter; and produces a first cavity signal from the first filtered light; and a second light detector that: receives the second filtered light; and produces a second cavity signal from the second filtered light.Type: ApplicationFiled: July 24, 2019Publication date: February 6, 2020Inventors: Zeeshan Ahmed, Kevin O. Douglass, Stephen P. Eckel, Patrick F. Egan, Jay H. Hendricks, Jack A. Stone, JR.
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Patent number: 9903808Abstract: A comb source includes a continuous wave frequency source to provide a continuous wave radiation; a first modulator in optical communication with the continuous wave frequency source; a second modulator in optical communication with continuous wave frequency source; and a waveform driver in electrical communication with the first modulator and the second modulator. A process for producing an analyte spectrum includes producing a first comb from a continuous wave frequency and a first waveform; producing a reference comb and a probe comb from the first comb; subjecting a sample to the probe comb; producing a sample comb in response to subjecting the sample to the probe comb; producing a composite comb from the reference comb and the sample comb; producing a second comb from the continuous wave frequency and a second waveform; and combining the second comb and the composite comb to produce the analyte spectrum.Type: GrantFiled: January 6, 2015Date of Patent: February 27, 2018Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: David F. Plusquellic, David A. Long, Kevin O. Douglass, Joseph T. Hodges, Adam J. Fleisher
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Publication number: 20150159990Abstract: A comb source includes a continuous wave frequency source to provide a continuous wave radiation; a first modulator in optical communication with the continuous wave frequency source; a second modulator in optical communication with continuous wave frequency source; and a waveform driver in electrical communication with the first modulator and the second modulator.Type: ApplicationFiled: January 6, 2015Publication date: June 11, 2015Inventors: DAVID F. PLUSQUELLIC, DAVID A. LONG, KEVIN O. DOUGLASS, JOSEPH T. HODGES, ADAM J. FLEISHER
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Patent number: 8748822Abstract: Terahertz spectroscopy methods that are fast and have excellent spectral resolution and that do not require background correction of the instrument response without sample are disclosed. In one instance, the methods include phase coherent chirp pulse generation and phase coherent detection.Type: GrantFiled: January 10, 2012Date of Patent: June 10, 2014Assignee: University of MassachusettsInventors: Eyal Gerecht, David F. Plusquellic, Kevin O. Douglass
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Patent number: 8642982Abstract: A fast switching arbitrary frequency light source for broadband spectroscopic applications. The light source may operate near 1.6 um based on sideband tuning using an electro-optic modulator driven by an arbitrary waveform generator. A Fabry-Perot filter cavity selects a single sideband of the light source. The finesse (FSR/??FWHM) of the filter cavity may be chosen to enable rapid frequency switching at rates up to 5 MHz over a frequency range of 40 GHz (1.3 cm?1). The bandwidth, speed and spectral purity are high enough for spectroscopic applications where rapid and discrete frequency scans are needed. Significant signal-to-noise advantages may be realized using the rapid and broadband scanning features of this system in many areas of spectroscopy, e.g., process monitoring and control, reaction dynamics, and remote sensing (e.g., greenhouse gas monitoring, biological/chemical agent screening).Type: GrantFiled: March 14, 2013Date of Patent: February 4, 2014Assignee: The United States of America, as represented by the Secretary of Commerce, NISTInventors: David F. Plusquellic, Kevin O. Douglass, Stephen E. Maxwell, Joseph T. Hodges, David A. Long, Gar-Wing Truong