Patents by Inventor Anatol Khilo

Anatol Khilo 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).

  • Publication number: 20250180814
    Abstract: An optical input polarization management device includes a polarization splitter and rotator (PSR) that directs a portion of incoming light having a first polarization through a first optical waveguide (OW). The PSR rotates a portion of the incoming light having a second polarization to the first polarization so as to provide polarization-rotated light. The PSR directs the polarization-rotated light through a second OW. Light within the first and second OW's is input to a first two-by-two optical splitter (2×2OS). A first phase shifter (PS) is interfaced with either the first or second OW. Light is output from the first 2×2OS into a third OW and a fourth OW. Light within the third and fourth OW's is input to a second 2×2OS. A second PS is interfaced with either the third or fourth OW. Light is output from the second 2×2OS into a fifth OW for further processing.
    Type: Application
    Filed: February 3, 2025
    Publication date: June 5, 2025
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Patent number: 12298564
    Abstract: An electro-optic receiver includes a polarization splitter and rotator (PSR) that directs incoming light having a first polarization through a first end of an optical waveguide, and that rotates incoming light from a second polarization to the first polarization to create polarization-rotated light that is directed to a second end of the optical waveguide. The incoming light of the first polarization and the polarization-rotated light travel through the optical waveguide in opposite directions. A plurality of ring resonators is optically coupled the optical waveguide.
    Type: Grant
    Filed: July 23, 2023
    Date of Patent: May 13, 2025
    Assignee: Ayar Labs, Inc.
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Publication number: 20250147345
    Abstract: A first waveguide has a core region and a first side region extending laterally outward from a first side of the core region in a first direction perpendicular to a lengthwise centerline of the core region. A vertical thickness of the first side region is smaller than a vertical thickness of the core region. A second waveguide is positioned within an evanescent optical coupling distance of the core region of the first waveguide on a second side of the core region of the first waveguide opposite from the first side of the core region of the first waveguide. A diode is formed within the first side region of the first waveguide. The diode includes an n-doped region and a p-doped region that are physically separated from the core region of the first waveguide. An electrically conductive structure directly electrically connects with both the n-doped region and the p-doped region.
    Type: Application
    Filed: January 8, 2025
    Publication date: May 8, 2025
    Inventors: Hayk Gevorgyan, Derek Kita, Anatol Khilo, Derek Van Orden, Neil Sapra, Dries Vercruysse, Milos Popovic, John M. Fini
  • Publication number: 20250085573
    Abstract: An optical waveguide includes a core region extending substantially along a lengthwise centerline of the optical waveguide, a first cladding region formed along a first side of the core region, and a second cladding region formed along a second side of the core region. The optical waveguide includes a first diode segment and a second diode segment that each include respective portions of the core region, the first cladding region, and the second cladding region. The second diode segment is contiguous with the first diode segment. The first diode segment forms a first diode across the optical waveguide such that a first intrinsic electric field extends across the first diode segment in a first direction, and the second diode segment forms a second diode across the optical waveguide such that a second intrinsic electric field extends across the second diode segment in a second direction opposite the first direction.
    Type: Application
    Filed: November 25, 2024
    Publication date: March 13, 2025
    Inventors: Derek M. Kita, Anatol Khilo, Dries Vercruysse, Neil Sapra, John M. Fini
  • Patent number: 12216312
    Abstract: An optical input polarization management device includes a polarization splitter and rotator (PSR) that directs a portion of incoming light having a first polarization through a first optical waveguide (OW). The PSR rotates a portion of the incoming light having a second polarization to the first polarization so as to provide polarization-rotated light. The PSR directs the polarization-rotated light through a second OW. Light within the first and second OW's is input to a first two-by-two optical splitter (2×2OS). A first phase shifter (PS) is interfaced with either the first or second OW. Light is output from the first 2×2OS into a third OW and a fourth OW. Light within the third and fourth OW's is input to a second 2×2OS. A second PS is interfaced with either the third or fourth OW. Light is output from the second 2×2OS into a fifth OW for further processing.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: February 4, 2025
    Assignee: Ayar Labs, Inc.
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Publication number: 20240418939
    Abstract: An electro-optic combiner includes a polarization splitter and rotator (PSR) that directs a portion of incoming light having a first polarization through a first optical waveguide (OW). The PSR rotates a portion of the incoming light having a second polarization to the first polarization to provide polarization-rotated light. The PSR directs the polarization-rotated light through a second OW. Each of the first and second OW's has a respective combiner section. The first and second OW combiner sections extend parallel to each other and have opposite light propagation directions. A plurality of ring resonators is disposed between the combiner sections of the first and second OW's and within an evanescent optically coupling distance of both the first and second OW's. Each of ring resonators operates at a respective resonant wavelength to optically couple light from the combiner section of the first OW into the combiner section of the second OW.
    Type: Application
    Filed: August 27, 2024
    Publication date: December 19, 2024
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Patent number: 12153293
    Abstract: An optical waveguide includes a core region extending substantially along a lengthwise centerline of the optical waveguide, a first cladding region formed along a first side of the core region, and a second cladding region formed along a second side of the core region. The optical waveguide includes a first diode segment and a second diode segment that each include respective portions of the core region, the first cladding region, and the second cladding region. The second diode segment is contiguous with the first diode segment. The first diode segment forms a first diode across the optical waveguide such that a first intrinsic electric field extends across the first diode segment in a first direction, and the second diode segment forms a second diode across the optical waveguide such that a second intrinsic electric field extends across the second diode segment in a second direction opposite the first direction.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: November 26, 2024
    Assignee: Ayar Labs, Inc.
    Inventors: Derek M. Kita, Anatol Khilo, Dries Vercruysse, Neil Sapra, John M. Fini
  • Publication number: 20240302609
    Abstract: A first portion of incoming light and a second portion of incoming light travel in opposite directions within a first optical waveguide. A ring resonator in-couples the first portion of incoming light and the second portion of incoming light from the first optical waveguide, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the ring resonator. A second optical waveguide is disposed to in-couple the first portion of incoming light and the second portion of incoming light couple from the ring resonator, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the second optical waveguide away from the ring resonator. One or more photodetector(s) are optically connected to receive the first portion of incoming light and the second portion of incoming light from the second optical waveguide.
    Type: Application
    Filed: May 20, 2024
    Publication date: September 12, 2024
    Inventors: John Fini, Anatol Khilo, Chen Sun, Pavan Bhargava, Chandarasekaran Ramamurthy
  • Publication number: 20240295760
    Abstract: A thermo-optic phase shifter includes a substrate having a cavity formed into an upper region of the substrate. The thermo-optic phase shifter includes an optical waveguide disposed above the substrate. The optical waveguide extends across and above the cavity. The thermo-optic phase shifter also includes a heater device disposed along a lateral side of the optical waveguide. The heater device extends across and above the cavity. The cavity is formed by an undercut etching process after the optical waveguide and the heater device is formed. The optical waveguide can be formed to include one or more segments that pass over the cavity. Also, a second heater device can be included such that the one or more segments of the optical waveguide that extend over the cavity are bracketed by heater devices. Thermal transmission structures can be included to enhance heat transfer between the heater device(s) and the optical waveguide.
    Type: Application
    Filed: May 10, 2024
    Publication date: September 5, 2024
    Inventors: Sidney Buchbinder, John Fini, Anatol Khilo
  • Patent number: 12072532
    Abstract: An electro-optic combiner includes a polarization splitter and rotator (PSR) that directs a portion of incoming light having a first polarization through a first optical waveguide (OW). The PSR rotates a portion of the incoming light having a second polarization to the first polarization to provide polarization-rotated light. The PSR directs the polarization-rotated light through a second OW. Each of the first and second OW's has a respective combiner section. The first and second OW combiner sections extend parallel to each other and have opposite light propagation directions. A plurality of ring resonators is disposed between the combiner sections of the first and second OW's and within an evanescent optically coupling distance of both the first and second OW's. Each of ring resonators operates at a respective resonant wavelength to optically couple light from the combiner section of the first OW into the combiner section of the second OW.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: August 27, 2024
    Assignee: Ayar Labs, Inc.
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Patent number: 12014962
    Abstract: A semiconductor wafer includes a semiconductor chip that includes a photonic device. The semiconductor chip includes an optical fiber attachment region in which an optical fiber alignment structure is to be fabricated. The optical fiber alignment structure is not yet fabricated in the optical fiber attachment region. The semiconductor chip includes an in-plane fiber-to-chip optical coupler positioned at an edge of the optical fiber attachment region. The in-plane fiber-to-chip optical coupler is optically connected to the photonic device. A sacrificial optical structure is optically coupled to the in-plane fiber-to-chip optical coupler. The sacrificial optical structure includes an out-of-plane optical coupler configured to receive input light from a light source external to the semiconductor chip. At least a portion of the sacrificial optical structure extends through the optical fiber attachment region.
    Type: Grant
    Filed: July 3, 2023
    Date of Patent: June 18, 2024
    Assignee: Ayar Labs, Inc.
    Inventors: Roy Edward Meade, Anatol Khilo, Forrest Sedgwick, Alexandra Wright
  • Patent number: 11988881
    Abstract: A first portion of incoming light and a second portion of incoming light travel in opposite directions within a first optical waveguide. A ring resonator in-couples the first portion of incoming light and the second portion of incoming light from the first optical waveguide, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the ring resonator. A second optical waveguide is disposed to in-couple the first portion of incoming light and the second portion of incoming light couple from the ring resonator, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the second optical waveguide away from the ring resonator. One or more photodetector(s) are optically connected to receive the first portion of incoming light and the second portion of incoming light from the second optical waveguide.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: May 21, 2024
    Assignee: Ayar Labs, Inc.
    Inventors: John Fini, Anatol Khilo, Chen Sun, Pavan Bhargava, Chandarasekaran Ramamurthy
  • Patent number: 11982887
    Abstract: A thermo-optic phase shifter includes a substrate having a cavity formed into an upper region of the substrate. The thermo-optic phase shifter includes an optical waveguide disposed above the substrate. The optical waveguide extends across and above the cavity. The thermo-optic phase shifter also includes a heater device disposed along a lateral side of the optical waveguide. The heater device extends across and above the cavity. The cavity is formed by an undercut etching process after the optical waveguide and the heater device is formed. The optical waveguide can be formed to include one or more segments that pass over the cavity. Also, a second heater device can be included such that the one or more segments of the optical waveguide that extend over the cavity are bracketed by heater devices. Thermal transmission structures can be included to enhance heat transfer between the heater device(s) and the optical waveguide.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: May 14, 2024
    Assignee: Ayar Labs, Inc.
    Inventors: Sidney Buchbinder, John Fini, Anatol Khilo
  • Publication number: 20230393424
    Abstract: An optical waveguide includes a core region extending substantially along a lengthwise centerline of the optical waveguide, a first cladding region formed along a first side of the core region, and a second cladding region formed along a second side of the core region. The optical waveguide includes a first diode segment and a second diode segment that each include respective portions of the core region, the first cladding region, and the second cladding region. The second diode segment is contiguous with the first diode segment. The first diode segment forms a first diode across the optical waveguide such that a first intrinsic electric field extends across the first diode segment in a first direction, and the second diode segment forms a second diode across the optical waveguide such that a second intrinsic electric field extends across the second diode segment in a second direction opposite the first direction.
    Type: Application
    Filed: August 21, 2023
    Publication date: December 7, 2023
    Inventors: Derek M. Kita, Anatol Khilo, Dries Vercruysse, Neil Sapra, John M. Fini
  • Publication number: 20230367072
    Abstract: An electro-optic receiver includes a polarization splitter and rotator (PSR) that directs incoming light having a first polarization through a first end of an optical waveguide, and that rotates incoming light from a second polarization to the first polarization to create polarization-rotated light that is directed to a second end of the optical waveguide. The incoming light of the first polarization and the polarization-rotated light travel through the optical waveguide in opposite directions. A plurality of ring resonators is optically coupled the optical waveguide.
    Type: Application
    Filed: July 23, 2023
    Publication date: November 16, 2023
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Publication number: 20230343655
    Abstract: A semiconductor wafer includes a semiconductor chip that includes a photonic device. The semiconductor chip includes an optical fiber attachment region in which an optical fiber alignment structure is to be fabricated. The optical fiber alignment structure is not yet fabricated in the optical fiber attachment region. The semiconductor chip includes an in-plane fiber-to-chip optical coupler positioned at an edge of the optical fiber attachment region. The in-plane fiber-to-chip optical coupler is optically connected to the photonic device. A sacrificial optical structure is optically coupled to the in-plane fiber-to-chip optical coupler. The sacrificial optical structure includes an out-of-plane optical coupler configured to receive input light from a light source external to the semiconductor chip. At least a portion of the sacrificial optical structure extends through the optical fiber attachment region.
    Type: Application
    Filed: July 3, 2023
    Publication date: October 26, 2023
    Inventors: Roy Edward Meade, Anatol Khilo, Forrest Sedgwick, Alexandra Wright
  • Patent number: 11733554
    Abstract: An optical waveguide includes a core region extending substantially along a lengthwise centerline of the optical waveguide, a first cladding region formed along a first side of the core region, and a second cladding region formed along a second side of the core region. The optical waveguide includes a first diode segment and a second diode segment that each include respective portions of the core region, the first cladding region, and the second cladding region. The second diode segment is contiguous with the first diode segment. The first diode segment forms a first diode across the optical waveguide such that a first intrinsic electric field extends across the first diode segment in a first direction, and the second diode segment forms a second diode across the optical waveguide such that a second intrinsic electric field extends across the second diode segment in a second direction opposite the first direction.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: August 22, 2023
    Assignee: Ayar Labs, Inc.
    Inventors: Derek M. Kita, Anatol Khilo, Dries Vercruysse, Neil Sapra, John M. Fini
  • Publication number: 20230251440
    Abstract: A first portion of incoming light and a second portion of incoming light travel in opposite directions within a first optical waveguide. A ring resonator in-couples the first portion of incoming light and the second portion of incoming light from the first optical waveguide, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the ring resonator. A second optical waveguide is disposed to in-couple the first portion of incoming light and the second portion of incoming light couple from the ring resonator, such that the first portion of incoming light and the second portion of incoming light travel in opposite directions within the second optical waveguide away from the ring resonator. One or more photodetector(s) are optically connected to receive the first portion of incoming light and the second portion of incoming light from the second optical waveguide.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Inventors: John Fini, Anatol Khilo, Chen Sun, Pavan Bhargava, Chandarasekaran Ramamurthy
  • Patent number: 11709319
    Abstract: An electro-optic receiver includes a polarization splitter and rotator (PSR) that directs incoming light having a first polarization through a first end of an optical waveguide, and that rotates incoming light from a second polarization to the first polarization to create polarization-rotated light that is directed to a second end of the optical waveguide. The incoming light of the first polarization and the polarization-rotated light travel through the optical waveguide in opposite directions. A plurality of ring resonators is optically coupled the optical waveguide.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: July 25, 2023
    Assignee: Ayar Labs, Inc.
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Patent number: 11694935
    Abstract: A semiconductor wafer includes a semiconductor chip that includes a photonic device. The semiconductor chip includes an optical fiber attachment region in which an optical fiber alignment structure is to be fabricated. The optical fiber alignment structure is not yet fabricated in the optical fiber attachment region. The semiconductor chip includes an in-plane fiber-to-chip optical coupler positioned at an edge of the optical fiber attachment region. The in-plane fiber-to-chip optical coupler is optically connected to the photonic device. A sacrificial optical structure is optically coupled to the in-plane fiber-to-chip optical coupler. The sacrificial optical structure includes an out-of-plane optical coupler configured to receive input light from a light source external to the semiconductor chip. At least a portion of the sacrificial optical structure extends through the optical fiber attachment region.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: July 4, 2023
    Assignee: Ayar Labs, Inc.
    Inventors: Roy Edward Meade, Anatol Khilo, Forrest Sedgwick, Alexandra Wright