Patents by Inventor Karl Kissa
Karl Kissa 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: 11378826Abstract: An electrical-optical modulator may include a first section configured for a first electrical-optical interaction between one or more optical waveguides and one or more signal electrodes. The electrical-optical modulator may include a second section configured to increase or decrease a relative velocity of signals of the one or more signal electrodes to optical signals of the one or more optical waveguides relative to the first section. The electrical-optical modulator may include a third section configured for a second electrical-optical interaction between the one or more optical waveguides and the one or more signal electrodes according to an opposite modulation polarity relative to the first section.Type: GrantFiled: March 31, 2020Date of Patent: July 5, 2022Assignee: Lumentum Operations LLCInventors: Karl Kissa, David Glassner, Stephen Jones, Robert Griffin, John M. Heaton
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Patent number: 11378825Abstract: An electrical-optical modulator may include one or more optical waveguides to propagate one or more optical signals in a direction of propagation. An optical waveguide of the one or more optical waveguides may include a time delay section, a first modulation section preceding the time delay section in the direction of propagation, and a second modulation section following the time delay section in the direction of propagation. The first modulation section and the second modulation section may be configured to be associated with opposite modulation polarities, and the time delay section may be configured to delay a phase of the one more optical signals relative to the first modulation section. The electrical-optical modulator may include one or more signal electrodes to propagate one or more signals in the direction of propagation in order to modulate the one or more optical signals through electrical-optical interaction.Type: GrantFiled: March 31, 2020Date of Patent: July 5, 2022Assignee: Lumentum Operations LLCInventors: Karl Kissa, David Glassner, Stephen Jones, Robert Griffin, John M. Heaton
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Publication number: 20210080798Abstract: An electrical-optical modulator may include a first section configured for a first electrical-optical interaction between one or more optical waveguides and one or more signal electrodes. The electrical-optical modulator may include a second section configured to increase or decrease a relative velocity of signals of the one or more signal electrodes to optical signals of the one or more optical waveguides relative to the first section. The electrical-optical modulator may include a third section configured for a second electrical-optical interaction between the one or more optical waveguides and the one or more signal electrodes according to an opposite modulation polarity relative to the first section.Type: ApplicationFiled: June 19, 2020Publication date: March 18, 2021Inventors: Karl KISSA, John M. HEATON
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Publication number: 20210080796Abstract: An electrical-optical modulator may include one or more optical waveguides to propagate one or more optical signals in a direction of propagation. An optical waveguide of the one or more optical waveguides may include a time delay section, a first modulation section preceding the time delay section in the direction of propagation, and a second modulation section following the time delay section in the direction of propagation. The first modulation section and the second modulation section may be configured to be associated with opposite modulation polarities, and the time delay section may be configured to delay a phase of the one more optical signals relative to the first modulation section. The electrical-optical modulator may include one or more signal electrodes to propagate one or more signals in the direction of propagation in order to modulate the one or more optical signals through electrical-optical interaction.Type: ApplicationFiled: March 31, 2020Publication date: March 18, 2021Inventors: Karl KISSA, David GLASSNER, Stephen JONES, Robert GRIFFIN, John M. HEATON
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Publication number: 20210080797Abstract: An electrical-optical modulator may include a first section configured for a first electrical-optical interaction between one or more optical waveguides and one or more signal electrodes. The electrical-optical modulator may include a second section configured to increase or decrease a relative velocity of signals of the one or more signal electrodes to optical signals of the one or more optical waveguides relative to the first section. The electrical-optical modulator may include a third section configured for a second electrical-optical interaction between the one or more optical waveguides and the one or more signal electrodes according to an opposite modulation polarity relative to the first section.Type: ApplicationFiled: March 31, 2020Publication date: March 18, 2021Inventors: Karl KISSA, David GLASSNER, Stephen JONES, Robert GRIFFIN, John M. HEATON
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Patent number: 10502987Abstract: A radio frequency (RF) interconnect for an optical modulator may comprise a circuit board to route a set of RF signals from a corresponding set of RF feeds to a substrate interface on a surface of a substrate of the optical modulator. The circuit board may be positioned along the surface of the substrate of the optical modulator. The circuit board may include a set of traces. A trace, of the set of traces, may be connected to a corresponding RF feed, of the set of RF feeds, at a height different than a height of the surface of the substrate of the optical modulator. The trace may be connected to the substrate interface.Type: GrantFiled: April 5, 2016Date of Patent: December 10, 2019Assignee: Lumentum Operations LLCInventors: Siu Kwan Cheung, Glen Drake, Karl Kissa
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Patent number: 10371968Abstract: A modulator may include a substrate. The modulator may include one or more waveguides formed upon or formed in the substrate. A signal electrode may be provided adjacent to at least one of the one or more waveguides and may include a curved outer surface. The modulator may include one or more ground electrodes provided adjacent to the signal electrode. Each ground electrode, of the one or more ground electrodes, may include a respective curved inner surface that is radially spaced from the curved outer surface of the signal electrode. The one or more ground electrodes and the substrate may at least substantially enclose the curved outer surface of the signal electrode.Type: GrantFiled: May 7, 2018Date of Patent: August 6, 2019Assignee: Lumentum Operations LLCInventors: Gregory J. McBrien, Karl Kissa
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Patent number: 10295849Abstract: An optical modulator may include at least one ground electrode. The optical modulator may include at least one signal electrode parallel to the at least one ground electrode. The optical modulator may include at least one waveguide parallel to the at least one ground electrode and the at least one signal electrode. The optical modulator may include a first substrate disposed underneath the at least one ground electrode and the at least one signal electrode relative to a surface of the optical modulator. The optical modulator may include a second substrate disposed underneath at least a portion of the first substrate relative to the surface of the optical modulator. The optical modulator may include a floating conductor disposed between the first substrate and the second substrate.Type: GrantFiled: October 27, 2017Date of Patent: May 21, 2019Assignee: Lumentum Operations LLCInventors: Karl Kissa, Siu Kwan Cheung, David M. Shemo, David Glassner, Ed L. Wooten
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Patent number: 10295844Abstract: A device may include a substrate. The device may include an optical waveguide formed in or on the substrate. The device may include a signal electrode extending along a longitudinal axis. The signal electrode may include a first portion with a proximal end that is proximal to the optical waveguide, to induce a signal from the signal electrode to the optical waveguide. The signal electrode may include a second portion, at least partially attached to or continuous with a distal end of the first portion. The device may include one or more ground electrodes that form an enclosure. The enclosure may enclose the signal electrode with regard to a side of the substrate in a plane perpendicular to the longitudinal axis.Type: GrantFiled: April 5, 2016Date of Patent: May 21, 2019Assignee: Lumentum Operations LLCInventors: Karl Kissa, David Glassner
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Publication number: 20180252948Abstract: A modulator may include a substrate. The modulator may include one or more waveguides formed upon or formed in the substrate. A signal electrode may be provided adjacent to at least one of the one or more waveguides and may include a curved outer surface. The modulator may include one or more ground electrodes provided adjacent to the signal electrode. Each ground electrode, of the one or more ground electrodes, may include a respective curved inner surface that is radially spaced from the curved outer surface of the signal electrode. The one or more ground electrodes and the substrate may at least substantially enclose the curved outer surface of the signal electrode.Type: ApplicationFiled: May 7, 2018Publication date: September 6, 2018Inventors: Gregory J. MCBRIEN, Karl KISSA
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Publication number: 20180173026Abstract: An optical modulator may include at least one ground electrode. The optical modulator may include at least one signal electrode parallel to the at least one ground electrode. The optical modulator may include at least one waveguide parallel to the at least one ground electrode and the at least one signal electrode. The optical modulator may include a first substrate disposed underneath the at least one ground electrode and the at least one signal electrode relative to a surface of the optical modulator. The optical modulator may include a second substrate disposed underneath at least a portion of the first substrate relative to the surface of the optical modulator. The optical modulator may include a floating conductor disposed between the first substrate and the second substrate.Type: ApplicationFiled: October 27, 2017Publication date: June 21, 2018Inventors: Karl KISSA, Siu Kwan CHEUNG, David M. SHEMO, David GLASSNER, Ed L. WOOTEN
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Patent number: 9964784Abstract: A modulator may include a substrate. The modulator may include one or more waveguides formed upon or formed in the substrate. A signal electrode may be provided adjacent to at least one of the one or more waveguides and may include a curved outer surface. The modulator may include one or more ground electrodes provided adjacent to the signal electrode. Each ground electrode, of the one or more ground electrodes, may include a respective curved inner surface that is radially spaced from the curved outer surface of the signal electrode. The one or more ground electrodes and the substrate may at least substantially enclose the curved outer surface of the signal electrode.Type: GrantFiled: April 5, 2016Date of Patent: May 8, 2018Assignee: Lumentum Operations LLCInventors: Gregory J. McBrien, Karl Kissa
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Patent number: 9851615Abstract: An optical modulator is disclosed, in which a MMI couplers are used for input signal splitting for branching into individual Mach-Zehnder interferometers, as well as for branching and combining from individual Mach-Zehnder waveguides. MMI couplers, splitters, and combiners may be cascaded and combined with single-mode Y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase Mach-Zehnder interferometer base optical modulators.Type: GrantFiled: April 10, 2017Date of Patent: December 26, 2017Assignee: Lumentum Operations LLCInventors: Charles M. Jewart, Yannick Lize, Karl Kissa
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Publication number: 20170212403Abstract: An optical modulator is disclosed, in which a MMI couplers are used for input signal splitting for branching into individual Mach-Zehnder interferometers, as well as for branching and combining from individual Mach-Zehnder waveguides. MMI couplers, splitters, and combiners may be cascaded and combined with single-mode Y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase Mach-Zehnder interferometer base optical modulators.Type: ApplicationFiled: April 10, 2017Publication date: July 27, 2017Inventors: Charles M. JEWART, Yannick LIZE, Karl KISSA
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Patent number: 9618821Abstract: An optical modulator is disclosed, in which a MMI couplers are used for input signal splitting for branching into individual Mach-Zehnder interferometers, as well as for branching and combining from individual Mach-Zehnder waveguides. MMI couplers, splitters, and combiners may be cascaded and combined with single-mode Y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase Mach-Zehnder interferometer base optical modulators.Type: GrantFiled: June 5, 2015Date of Patent: April 11, 2017Assignee: Lumentum Operations LLCInventors: Charles M. Jewart, Yannick Lize, Karl Kissa
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Patent number: 9588395Abstract: A planar optical waveguide circuit includes an optical modulator, such as that based on a Mach-Zehnder interferometer, that is followed by an in-line optical tap in the form of a 2×2 multi-mode interference coupler that is characterized a reduced tracking error as compared to Y-junction couplers.Type: GrantFiled: June 5, 2015Date of Patent: March 7, 2017Assignee: Lumentum Operations LLCInventors: Charles M. Jewart, Karl Kissa
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Publication number: 20160357085Abstract: A planar optical waveguide circuit includes an optical modulator, such as that based on a Mach-Zehnder interferometer, that is followed by an in-line optical tap in the form of a 2×2 multi-mode interference coupler that is characterized a reduced tracking error as compared to Y-junction couplers.Type: ApplicationFiled: June 5, 2015Publication date: December 8, 2016Inventors: Charles M. JEWART, Karl Kissa
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Publication number: 20160299361Abstract: A radio frequency (RF) interconnect for an optical modulator may comprise a circuit board to route a set of RF signals from a corresponding set of RF feeds to a substrate interface on a surface of a substrate of the optical modulator. The circuit board may be positioned along the surface of the substrate of the optical modulator. The circuit board may include a set of traces. A trace, of the set of traces, may be connected to a corresponding RF feed, of the set of RF feeds, at a height different than a height of the surface of the substrate of the optical modulator. The trace may be connected to the substrate interface.Type: ApplicationFiled: April 5, 2016Publication date: October 13, 2016Inventors: Siu Kwan CHEUNG, Glen Drake, Karl Kissa
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Publication number: 20160291352Abstract: A device may include a substrate. The device may include an optical waveguide formed in or on the substrate. The device may include a signal electrode extending along a longitudinal axis. The signal electrode may include a first portion with a proximal end that is proximal to the optical waveguide, to induce a signal from the signal electrode to the optical waveguide. The signal electrode may include a second portion, at least partially attached to or continuous with a distal end of the first portion. The device may include one or more ground electrodes that form an enclosure. The enclosure may enclose the signal electrode with regard to a side of the substrate in a plane perpendicular to the longitudinal axis.Type: ApplicationFiled: April 5, 2016Publication date: October 6, 2016Inventors: Karl KISSA, David GLASSNER
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Publication number: 20160291353Abstract: A modulator may include a substrate. The modulator may include one or more waveguides formed upon or formed in the substrate. A signal electrode may be provided adjacent to at least one of the one or more waveguides and may include a curved outer surface. The modulator may include one or more ground electrodes provided adjacent to the signal electrode. Each ground electrode, of the one or more ground electrodes, may include a respective curved inner surface that is radially spaced from the curved outer surface of the signal electrode. The one or more ground electrodes and the substrate may at least substantially enclose the curved outer surface of the signal electrode.Type: ApplicationFiled: April 5, 2016Publication date: October 6, 2016Inventors: Gregory J. MCBRIEN, Karl KISSA