Patents by Inventor Scott L. Rudder
Scott L. Rudder 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: 11460343Abstract: A method is disclosed for providing enhanced quantitative analysis of materials by a dual-laser Raman probe wherein the wavelengths of the lasers used to illuminate a target object are selected in a manner to improve and enhance the quantitative analysis performance of the Raman signals.Type: GrantFiled: March 10, 2021Date of Patent: October 4, 2022Assignee: Innovative Photonic Solutions, Inc.Inventors: Greg W. Charache, Scott L. Rudder
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Patent number: 11415520Abstract: A method is disclosed for providing enhanced quantitative analysis of materials by a dual-laser Raman probe wherein the wavelengths of the lasers used to illuminate a target object are selected in a manner to improve and enhance the quantitative analysis performance of the Raman signals.Type: GrantFiled: March 24, 2021Date of Patent: August 16, 2022Assignee: Innovative Photonic Solutions, Inc.Inventors: Greg W. Charache, Scott L. Rudder
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Publication number: 20210302317Abstract: A method is disclosed for providing enhanced quantitative analysis of materials by a dual-laser Raman probe wherein the wavelengths of the lasers used to illuminate a target object are selected in a manner to improve and enhance the quantitative analysis performance of the Raman signals.Type: ApplicationFiled: March 24, 2021Publication date: September 30, 2021Inventors: Greg W. Charache, Scott L. Rudder
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Publication number: 20210302233Abstract: A method is disclosed for providing enhanced quantitative analysis of materials by a dual-laser Raman probe wherein the wavelengths of the lasers used to illuminate a target object are selected in a manner to improve and enhance the quantitative analysis performance of the Raman signals.Type: ApplicationFiled: March 10, 2021Publication date: September 30, 2021Inventors: Greg W. Charache, Scott L. Rudder
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Patent number: 11067512Abstract: A method is disclosed for providing enhanced quantitative analysis of materials by a dual-laser Raman probe wherein the wavelengths of the lasers used to illuminate a target object are selected in a manner to improve and enhance the quantitative analysis performance of the Raman signals.Type: GrantFiled: March 26, 2020Date of Patent: July 20, 2021Assignee: Innovative Photonic Solutions, Inc.Inventors: Greg W. Charache, Scott L. Rudder
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Patent number: 10458917Abstract: A method of measuring Raman scattering includes exciting Raman scattering of a sample with a first wavelength and a second wavelength of electromagnetic radiation traveling along a common optical path to form a first scattered radiation and a second scattered radiation. The first wavelength reaches the sample polarized in a first direction, and the second wavelength reaches the sample polarized in a second direction perpendicular to the first direction. The method includes collecting a first Raman spectrum from the first scattered radiation, collecting a second Raman spectrum from the second scattered radiation, and forming a decomposed Raman spectrum based on the first Raman spectrum and the second Raman spectrum. The decomposed Raman spectrum may be substantially free of noise, such as fluorescence and background radiation. Related spectrometers and laser devices are disclosed.Type: GrantFiled: January 8, 2018Date of Patent: October 29, 2019Assignee: MKS Technology, Inc.Inventors: Keith T. Carron, Celestin P. Zemtsop, Shane A. Buller, Scott L. Rudder, Harald R. Guenther
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Patent number: 10359313Abstract: A compact dual-wavelength Raman probe using two laser sources each providing Raman excitation light at a different wavelength is disclosed causing Raman scattering in a fingerprint region associated with one excitation wavelength and causing Raman scattering in a stretch region, which are detected by the same detector array.Type: GrantFiled: June 4, 2018Date of Patent: July 23, 2019Assignee: Innovative Photonic Solutions, Inc.Inventors: Scott L. Rudder, Joseph B. Gannon, Robert V. Chimenti, Benjamin L. Carlin, John C. Connolly
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Publication number: 20190013645Abstract: A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength is disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Brag grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.Type: ApplicationFiled: August 20, 2018Publication date: January 10, 2019Inventors: John C. Connolly, Donald E. Ackley, Scott L. Rudder, Harald R. Guenther
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Patent number: 10090642Abstract: A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength is disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Bragg grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.Type: GrantFiled: February 24, 2014Date of Patent: October 2, 2018Assignee: Innovative Photonic Solutions, Inc.Inventors: John C. Connolly, Donald E Ackley, Scott L. Rudder, Harald R. Guenther
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Publication number: 20180195965Abstract: A method of measuring Raman scattering includes exciting Raman scattering of a sample with a first wavelength and a second wavelength of electromagnetic radiation traveling along a common optical path to form a first scattered radiation and a second scattered radiation. The first wavelength reaches the sample polarized in a first direction, and the second wavelength reaches the sample polarized in a second direction perpendicular to the first direction. The method includes collecting a first Raman spectrum from the first scattered radiation, collecting a second Raman spectrum from the second scattered radiation, and forming a decomposed Raman spectrum based on the first Raman spectrum and the second Raman spectrum. The decomposed Raman spectrum may be substantially free of noise, such as fluorescence and background radiation. Related spectrometers and laser devices are disclosed.Type: ApplicationFiled: January 8, 2018Publication date: July 12, 2018Inventors: Keith T. Carron, Celestin P. Zemtsop, Shane A. Buller, Scott L. Rudder, Harald R. Guenther
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Patent number: 9577409Abstract: A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength are disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Bragg grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.Type: GrantFiled: January 31, 2016Date of Patent: February 21, 2017Assignee: Innovative Photonic Solutions, INc.Inventors: John C. Connolly, Donald E Ackley, Scott L. Rudder, Harald R. Guenther
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Patent number: 9287681Abstract: A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength is disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Bragg grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.Type: GrantFiled: December 3, 2013Date of Patent: March 15, 2016Assignee: Innovative Photoic Solutions, Inc.Inventors: John C. Connolly, Donald E Ackley, Scott L. Rudder, Harald R. Guenther
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Publication number: 20150346102Abstract: A compact Raman probe integrated with a wavelength-stabilized laser source is disclosed. The output beam of the laser source has an elongated cross-section that is focused onto a target of interest. Raman and Rayleigh scattered light is collected, collimated, and filtered by free-space optics to form a beam that is coupled to the input of a multimode optical fiber having an elongated core that is aligned to edge slits of an optical spectrometer.Type: ApplicationFiled: February 5, 2015Publication date: December 3, 2015Applicant: INNOVATIVE PHOTONIC SOLUTIONS, INC.Inventors: Robert V. Chimenti, Scott L. Rudder, Harald R. Guenther, Joseph B. Gannon, John C. Connolly
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Patent number: 9059555Abstract: A hybrid external cavity laser (HECL) system comprises a diode laser, collection and collimation optics, and a volume Bragg grating, emits radiation at a single wavelength with a short-term wavelength stability in the order of at least one part in a billion The wavelength stability is achieved by use of a thermal management system, comprising inner and outer housings, each containing a temperature sensor, and electronic circuitry that monitors the temperatures and controls both the laser diode current and a thermoelectric cooler based on temperatures determined from said temperature sensors. The laser system is packaged in a compact enclosure that minimizes waste heat, facilitating use in applications that have heretofore employed stable, single-frequency lasers, including He—Ne lasers.Type: GrantFiled: August 2, 2013Date of Patent: June 16, 2015Assignee: Innovative Photonic SolutionsInventors: John C. Connolly, Donald E Ackley, Scott L. Rudder, Harald R. Guenther
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Publication number: 20150131686Abstract: A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength is disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Bragg grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.Type: ApplicationFiled: December 3, 2013Publication date: May 14, 2015Inventors: John C. Connolly, Donald E. Ackley, Scott L. Rudder, Harald R. Guenther
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Publication number: 20150131690Abstract: A hybrid external cavity laser and a method for configuring the laser having a stabilized wavelength is disclosed. The laser comprises a semiconductor gain section and a volume Bragg grating, wherein a laser emission from the semiconductor gain section is based on a combination of a reflectivity of a front facet of the semiconductor gain section and a reflectivity of the volume Bragg grating and the reflectivity of the semiconductor gain section and the volume Bragg grating are insufficient by themselves to support the laser emission. The hybrid cavity laser further comprises an etalon that provides further wavelength stability.Type: ApplicationFiled: February 24, 2014Publication date: May 14, 2015Applicant: Innovative Photonic SolutionsInventors: John C. Connolly, Donald E Ackley, Scott L. Rudder, Harald R. Guenther
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Patent number: 8970948Abstract: Disclosed are systems and methods for using a semiconductor optical amplifier (SOA) as an optical modulator for pulsed signals. In accordance with the principles of the invention, the SOA can be biased with a negative voltage to suppress transmission and improve modulator extinction and biased with a positive pulsed signal with sufficient amplitude to forward bias the amplifier (SOA), both transmitting the carrier and increasing its amplitude by means of a gain provided by the SOA under forward biased conditions. In addition, the forward bias voltage may be selected to compensate for losses within the SOA.Type: GrantFiled: September 11, 2013Date of Patent: March 3, 2015Assignee: Innovative Photonic Solutions, Inc.Inventors: John C. Connolly, Donald E Ackley, Scott L Rudder, Harald R. Guenther
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Publication number: 20140072002Abstract: Disclosed are systems and methods for using a semiconductor optical amplifier (SOA) as an optical modulator for pulsed signals. In accordance with the principles of the invention, the SOA can be biased with a negative voltage to suppress transmission and improve modulator extinction and biased with a positive pulsed signal with sufficient amplitude to forward bias the amplifier (SOA), both transmitting the carrier and increasing its amplitude by means of a gain provided by the SOA under forward biased conditions. In addition, the forward bias voltage may be selected to compensate for losses within the SOA.Type: ApplicationFiled: September 11, 2013Publication date: March 13, 2014Inventors: John C. Connolly, Donald E. Ackley, Scott L. Rudder, Harald R. Guenther
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Publication number: 20140072004Abstract: A hybrid external cavity laser (HECL) system comprises a diode laser, collection and collimation optics, and a volume Bragg grating, emits radiation at a single wavelength with a short-term wavelength stability in the order of at least one part in a billion The wavelength stability is achieved by use of a thermal management system, comprising inner and outer housings, each containing a temperature sensor, and electronic circuitry that monitors the temperatures and controls both the laser diode current and a thermoelectric cooler based on temperatures determined from said temperature sensors. The laser system is packaged in a compact enclosure that minimizes waste heat, facilitating use in applications that have heretofore employed stable, single-frequency lasers, including He—Ne lasers.Type: ApplicationFiled: August 2, 2013Publication date: March 13, 2014Inventors: John C. Connolly, Donald E Ackley, Scott L Rudder, Harald R. Guenther