Patents by Inventor Christopher POULTON
Christopher POULTON 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: 11960006Abstract: Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range.Type: GrantFiled: June 24, 2021Date of Patent: April 16, 2024Assignee: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Diedrik Vermeulen
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Patent number: 11960192Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: October 31, 2022Date of Patent: April 16, 2024Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11809058Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: July 8, 2021Date of Patent: November 7, 2023Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11768418Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: July 29, 2021Date of Patent: September 26, 2023Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11619718Abstract: Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—that employ multiple detectors that may determine multiple incident angles of multiple received radiation beams and advantageously do not require or employ phase shifters in illustrative embodiments and may instead—employ optical Fourier transform structures.Type: GrantFiled: December 21, 2021Date of Patent: April 4, 2023Assignee: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Matthew Byrd, Diedrik Vermeulen, Peter Russo
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Publication number: 20230058824Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: ApplicationFiled: October 31, 2022Publication date: February 23, 2023Inventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11526063Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: September 28, 2020Date of Patent: December 13, 2022Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Publication number: 20220113389Abstract: Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—that employ multiple detectors that may determine multiple incident angles of multiple received radiation beams and advantageously do not require or employ phase shifters in illustrative embodiments and may instead—employ optical Fourier transform structures.Type: ApplicationFiled: December 21, 2021Publication date: April 14, 2022Applicant: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Matthew Byrd, Diedrik Vermeulen, Peter Russo
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Patent number: 11243296Abstract: Aspects of the present disclosure describe systems, methods, and structures—including LiDAR—that employ multiple detectors that may determine multiple incident angles of multiple received radiation beams and advantageously do not require or employ phase shifters in illustrative embodiments and may instead—employ optical Fourier transform structures.Type: GrantFiled: June 15, 2018Date of Patent: February 8, 2022Assignee: Analog Photonics LLCInventors: Matthew Byrd, Ehsan Hosseini, Christopher Poulton, Peter Russo, Diedrik Vermeulen, Michael Watts
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Publication number: 20210356835Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: ApplicationFiled: July 29, 2021Publication date: November 18, 2021Applicant: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Publication number: 20210333682Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: ApplicationFiled: July 8, 2021Publication date: October 28, 2021Applicant: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Publication number: 20210318442Abstract: Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range.Type: ApplicationFiled: June 24, 2021Publication date: October 14, 2021Applicant: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Diedrik Vermeulen
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Patent number: 11079653Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: March 21, 2019Date of Patent: August 3, 2021Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11079654Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: March 21, 2019Date of Patent: August 3, 2021Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 11061140Abstract: Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range.Type: GrantFiled: April 25, 2018Date of Patent: July 13, 2021Assignee: Analog Photonics LLCInventors: Ehsan Hosseini, Michael Watts, Christopher Poulton, Diedrik Vermeulen
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Patent number: 10976542Abstract: Aspects of the present disclosure describe systems, methods, and structures for aberration correction of optical phased arrays that employ a corrective optical path difference (OPD) in the near-field of an OPA to correct or cancel out aberrations in emitted beams of the OPA including those reaching far-field distances by generating a spatially-varying OPD across the aperture of the OPA that is substantially equal and opposite to an equivalent OPD of the aberration(s).Type: GrantFiled: January 28, 2019Date of Patent: April 13, 2021Assignee: Analog Photonics LLCInventors: Peter Nicholas Russo, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan, Diedrik Vermeulen, Michael Robert Watts, Michael Whitson
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Publication number: 20210026216Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: ApplicationFiled: September 28, 2020Publication date: January 28, 2021Applicant: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 10884312Abstract: An optical phase shifter may include a waveguide core that has a top surface, and a semiconductor contact that is laterally displaced relative to the waveguide core and is electrically connected to the waveguide core. A top surface of the semiconductor contact is above the top surface of the waveguide core. The waveguide core may include a p-type core region and an n-type core region. A p-type semiconductor region may be in physical contact with the n-type core region of the waveguide core, and an n-type semiconductor region may be in physical contact with the p-type core region of the waveguide core. A phase shifter region and a light-emitting region may be disposed at different depth levels, and the light-emitting region may emit light from a phase shifter region that is in a position adjacent to the light-emitting region.Type: GrantFiled: March 21, 2019Date of Patent: January 5, 2021Assignee: Analog Photonics LLCInventors: Michael Watts, Ehsan Hosseini, Christopher Poulton, Erman Timurdogan
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Patent number: 10790585Abstract: Aspects of the present disclosure describe systems, methods, and structures for optical phased array calibration that advantageously may be performed as a single-pass measurement of phase offset with respect to only a single interference measurement. In sharp contrast to the prior art—systems, methods, and structures according to aspects of the present disclosure advantageously produce phase offsets and phase functions of each element without time-consuming iterative procedures or multiple detector signals as required by the prior art.Type: GrantFiled: February 19, 2019Date of Patent: September 29, 2020Assignee: Analog Photonics LLCInventors: Christopher Poulton, Peter Russo, Erman Timurdogan, Matthew Byrd, Diedrik Vermeulen, Ehsan Hosseini
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Patent number: 10775559Abstract: A plurality of waveguide structures are formed in at least one silicon layer of a first member. The first member includes: a first surface of a first silicon dioxide layer that is attached to a second member that consists essentially of an optically transmissive material having a thermal conductivity less than about 50 W/(m·K), and a second surface of material that was deposited over at least some of the plurality of waveguide structures. An array of phase shifters is formed in one or more layers of the first member. An array of temperature controlling elements are in proximity to the array of phase shifters.Type: GrantFiled: April 16, 2019Date of Patent: September 15, 2020Assignee: Analog Photonics LLCInventors: Michael Robert Watts, Benjamin Roy Moss, Ehsan Shah Hosseini, Christopher Poulton, Peter Nicholas Russo