Patents by Inventor Derek A. Tucker
Derek A. Tucker 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: 11894651Abstract: An amplifier assembly may include a first heat sink plate that includes a first channel, a second heat sink plate that includes a second channel, and an amplifier rod disposed in the first channel and the second channel. The second heat sink plate may be connected with the first heat sink plate such that the first channel and the second channel align. The amplifier rod may be connected to the first heat sink plate and the second heat sink plate by a non-eutectic solder.Type: GrantFiled: May 16, 2022Date of Patent: February 6, 2024Assignee: Lumentum Operations LLCInventors: Christoffer Stroemberg, Susan Fung, Derek A. Tucker
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Publication number: 20220278496Abstract: An amplifier assembly may include a first heat sink plate that includes a first channel, a second heat sink plate that includes a second channel, and an amplifier rod disposed in the first channel and the second channel. The second heat sink plate may be connected with the first heat sink plate such that the first channel and the second channel align. The amplifier rod may be connected to the first heat sink plate and the second heat sink plate by a non-eutectic solder.Type: ApplicationFiled: May 16, 2022Publication date: September 1, 2022Inventors: Christoffer STROEMBERG, Susan FUNG, Derek A. TUCKER
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Patent number: 11349274Abstract: An amplifier assembly may include a first heat sink plate that includes a first channel, a second heat sink plate that includes a second channel, and an amplifier rod disposed in the first channel and the second channel. The second heat sink plate may be connected with the first heat sink plate such that the first channel and the second channel align. The amplifier rod may be connected to the first heat sink plate and the second heat sink plate by a non-eutectic solder.Type: GrantFiled: September 30, 2019Date of Patent: May 31, 2022Assignee: Lumentum Operations LLCInventors: Christoffer Stroemberg, Susan Fung, Derek A. Tucker
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Publication number: 20200119510Abstract: An amplifier assembly may include a first heat sink plate that includes a first channel, a second heat sink plate that includes a second channel, and an amplifier rod disposed in the first channel and the second channel. The second heat sink plate may be connected with the first heat sink plate such that the first channel and the second channel align. The amplifier rod may be connected to the first heat sink plate and the second heat sink plate by a non-eutectic solder.Type: ApplicationFiled: September 30, 2019Publication date: April 16, 2020Inventors: Christoffer STROEMBERG, Susan FUNG, Derek A. TUCKER
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Patent number: 10049295Abstract: Methods and systems detect changes occurring over time between synthetic aperture sonar (SAS) images. A processor performs coarse navigational alignment, fine-scale co-registration and local co-registration between current image data and historical image data. Local co-registration includes obtaining correlation peaks for large neighborhood non-overlapping patches. Relative patch translations are estimated and parameterized into error vectors. Interpolation functions formed from the vectors re-map the current image onto the same grid as the historical image and the complex correlation coefficient between images is calculated. The resulting interferogram is decomposed into surge and sway functions used to define the argument of a phase function, which is multiplied by the current image to remove the effects of surge and sway on the interferogram. Based on the aforementioned computations, a canonical correlation analysis is performed to detect scene changes between the historical and new SAS images.Type: GrantFiled: August 12, 2016Date of Patent: August 14, 2018Assignee: The United States of America as represented by the Secretary of the NavyInventors: Tesfaye G-Michael, Daniel Sternlicht, Bradley Marchand, James Derek Tucker, Timothy M. Marston
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Publication number: 20180046880Abstract: Methods and systems detect changes occurring over time between synthetic aperture sonar (SAS) images. A processor performs coarse navigational alignment, fine-scale co-registration and local co-registration between current image data and historical image data. Local co-registration includes obtaining correlation peaks for large neighborhood non-overlapping patches. Relative patch translations are estimated and parameterized into error vectors. Interpolation functions formed from the vectors re-map the current image onto the same grid as the historical image and the complex correlation coefficient between images is calculated. The resulting interferogram is decomposed into surge and sway functions used to define the argument of a phase function, which is multiplied by the current image to remove the effects of surge and sway on the interferogram. Based on the aforementioned computations, a canonical correlation analysis is performed to detect scene changes between the historical and new SAS images.Type: ApplicationFiled: August 12, 2016Publication date: February 15, 2018Inventors: Tesfaye G-Michael, Daniel Sternlicht, Bradley Marchand, James Derek Tucker, Timothy M. Marston
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Publication number: 20170219912Abstract: A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. The third harmonic generator may be positioned in an optical path upstream from the second harmonic generator. A harmonic generator delay time, associated with the optical path, may be approximately equal to, or may be an approximate integer multiple of, a laser source round-trip time.Type: ApplicationFiled: February 10, 2017Publication date: August 3, 2017Inventors: James J. MOREHEAD, Loren A. EYRES, Bertram C. JOHNSON, Martin H. MUENDEL, Derek A. TUCKER
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Patent number: 9568803Abstract: A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. The third harmonic generator may be positioned in an optical path upstream from the second harmonic generator. A harmonic generator delay time, associated with the optical path, may be approximately equal to, or may be an approximate integer multiple of, a laser source round-trip time.Type: GrantFiled: June 8, 2016Date of Patent: February 14, 2017Assignee: Lumentum Operations LLCInventors: James J. Morehead, Loren A. Eyres, Bertram C. Johnson, Martin H. Muendel, Derek A. Tucker
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Publication number: 20160291443Abstract: A cascaded harmonic generator, for cascaded optical harmonic generation from an optical beam provided by a laser source, may include a second harmonic generator to generate a second harmonic optical beam based on a residual beam associated with the optical beam. The cascaded harmonic generator may include a third harmonic generator to generate a third harmonic optical beam based on the second harmonic optical beam and the optical beam. The third harmonic generator may be positioned in an optical path upstream from the second harmonic generator. A harmonic generator delay time, associated with the optical path, may be approximately equal to, or may be an approximate integer multiple of, a laser source round-trip time.Type: ApplicationFiled: June 8, 2016Publication date: October 6, 2016Inventors: James J. MOREHEAD, Loren A. EYRES, Bertram C. JOHNSON, Martin H. MUENDEL, Derek A. TUCKER
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Patent number: 8243764Abstract: The invention relates to a laser system including a nonlinear crystal having a first length portion and a second length portion. The nonlinear crystal disposed to receive input light from the laser for converting the input light into frequency converted light; wherein the nonlinear crystal is configured so that the first length portion of the nonlinear crystal is phase matching for the input light and the frequency converted light, and the second length portion of the nonlinear crystal is phase mismatching for the input light and the frequency converted light. Phase mismatching means may include a temperature controlling board, a clamp, or electrodes.Type: GrantFiled: April 1, 2010Date of Patent: August 14, 2012Inventors: Derek A. Tucker, Dahv Kliner, Lawrence E. Myers, Martin H. Muendel
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Publication number: 20110243161Abstract: The invention relates to a laser system including a nonlinear crystal having a first length portion and a second length portion. The nonlinear crystal disposed to receive input light from the laser for converting the input light into frequency converted light; wherein the nonlinear crystal is configured so that the first length portion of the nonlinear crystal is phase matching for the input light and the frequency converted light, and the second length portion of the nonlinear crystal is phase mismatching for the input light and the frequency converted light. Phase mismatching means may include a temperature controlling board, a clamp, or electrodes.Type: ApplicationFiled: April 1, 2010Publication date: October 6, 2011Applicant: JDS Uniphase CorporationInventors: Derek A. TUCKER, Dahv Kliner, Lawrence E. Myers, Martin H. Muendel
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Patent number: 8027555Abstract: A cladding mode stripper for stripping cladding modes from an optical fiber is disclosed. The cladding mode stripper includes a reflective base and a block of a transparent material disposed on the reflective base. The block of the transparent material has a groove in its bottom surface for the fiber. The fiber is thermally coupled to the base and optically coupled to the groove in the block, for example using an index matching gel. The cladding mode light is reflected from the reflective base and is absorbed in a cover enclosing the block. An additional thin block of transparent heat-conductive material can be placed between the fiber and the reflective base, to prevent the index matching gel from contacting the reflective surface of the base.Type: GrantFiled: June 30, 2010Date of Patent: September 27, 2011Assignee: JDS Uniphase CorporationInventors: Dahv Kliner, Derek A. Tucker, Juan Lugo