Patents by Inventor Keren Bergman
Keren Bergman 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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Publication number: 20230239058Abstract: A cryogenic optoelectronic data link, comprising a sending module operating at a cryogenic temperature less than 100 K. An ultrasensitive electro-optic modulator, sensitive to input voltages of less than 10 mV, may include at least one optically active layer of graphene, which may be part of a microscale resonator, which in turn may be integrated with an optical waveguide or an optical fiber. The optoelectronic data link enables optical output of weak electrical signals from superconducting or other cryogenic electronic devices in either digital or analog form. The modulator may be integrated on the same chip as the cryogenic electrical devices. A plurality of cryogenic electrical devices may generate a plurality of electrical signals, each coupled to its own modulator. The plurality of modulators may be resonant at different frequencies, and coupled to a common optical output line to transmit a combined wavelength-division-multiplexed (WDM) optical signal.Type: ApplicationFiled: April 3, 2023Publication date: July 27, 2023Inventors: Igor V. Vernik, Oleg A. Mukhanov, Alan M. Kadin, Christopher T. Phare, Michal Lipson, Keren Bergman
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Patent number: 11621786Abstract: A cryogenic optoelectronic data link, comprising a sending module operating at a cryogenic temperature less than 100 K. An ultrasensitive electro-optic modulator, sensitive to input voltages of less than 10 mV, may include at least one optically active layer of graphene, which may be part of a microscale resonator, which in turn may be integrated with an optical waveguide or an optical fiber. The optoelectronic data link enables optical output of weak electrical signals from superconducting or other cryogenic electronic devices in either digital or analog form. The modulator may be integrated on the same chip as the cryogenic electrical devices. A plurality of cryogenic electrical devices may generate a plurality of electrical signals, each coupled to its own modulator. The plurality of modulators may be resonant at different frequencies, and coupled to a common optical output line to transmit a combined wavelength-division-multiplexed (WDM) optical signal.Type: GrantFiled: September 6, 2021Date of Patent: April 4, 2023Assignee: SeeQC, Inc.Inventors: Igor V. Vernik, Oleg A. Mukhanov, Alan M. Kadin, Christopher T. Phare, Michal Lipson, Keren Bergman
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Publication number: 20220394362Abstract: Disclosed herein are methods, systems, and devices for bandwidth steering. Systems may include a plurality of compute nodes configured to execute one or more applications, a plurality of first level resources communicatively coupled to the plurality of compute nodes, a plurality of second level resources communicatively coupled to the plurality of first level resources, and a plurality of third level resources communicatively coupled to the plurality of second level resources. Systems may also include a plurality of optical switch circuits communicatively coupled to the plurality of first level resources and the plurality of second level resources, wherein each of the plurality of optical switch circuits is coupled to more than one of the plurality of the first level resources and is also coupled to more than one of the plurality of the second level resources.Type: ApplicationFiled: November 13, 2020Publication date: December 8, 2022Inventors: Georgios Michelogiannakis, Yiwen Shen, Min Yee Teh, John Shalf, Madeleine Glick, Keren Bergman
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Patent number: 11496213Abstract: A method of interrogating a WDM optical communication system is provided to obtain one or more performance parameters. In accordance with the method, an optical probe wavelength is generated and possibly modulated in a prescribed manner. The probe signal is transmitted along a selected optical path through the WDM optical communication system for a duration of time that is less than a response time of network elements that impact signal quality along the selected optical path.Type: GrantFiled: December 5, 2016Date of Patent: November 8, 2022Assignees: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Daniel Kilper, Atiyah Sayyidah Ahsan, Keren Bergman
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Patent number: 11115131Abstract: A cryogenic optoelectronic data link, comprising a sending module operating at a cryogenic temperature less than 100 K. An ultrasensitive electro-optic modulator, sensitive to input voltages of less than 10 mV, may include at least one optically active layer of graphene, which may be part of a microscale resonator, which in turn may be integrated with an optical waveguide or an optical fiber. The optoelectronic data link enables optical output of weak electrical signals from superconducting or other cryogenic electronic devices in either digital or analog form. The modulator may be integrated on the same chip as the cryogenic electrical devices. A plurality of cryogenic electrical devices may generate a plurality of electrical signals, each coupled to its own modulator. The plurality of modulators may be resonant at different frequencies, and coupled to a common optical output line to transmit a combined wavelength-division-multiplexed (WDM) optical signal.Type: GrantFiled: May 5, 2020Date of Patent: September 7, 2021Assignee: SeeQC Inc.Inventors: Igor V. Vernik, Oleg A. Mukhanov, Alan M. Kadin, Christopher T. Phare, Michal Lipson, Keren Bergman
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Patent number: 10976491Abstract: In one embodiment an optoelectronic system can include a photonics interposer having a substrate and a functional interposer structure formed on the substrate, a plurality of through vias carrying electrical signals extending through the substrate and the functional interposer structure, and a plurality of wires carrying signals to different areas of the functional interposer structure. The system can further include one or more photonics device integrally formed in the functional interposer structure, and one or more prefabricated component attached to the functional interposer structure.Type: GrantFiled: October 27, 2017Date of Patent: April 13, 2021Assignees: THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK, ANALOG PHOTONICS, LLC, ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONAInventors: Douglas Coolbaugh, Michael Watts, Michal Lipson, Keren Bergman, Thomas Koch, Jeremiah Hebding, Daniel Pascual, Douglas La Tulipe
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Patent number: 10644809Abstract: A cryogenic optoelectronic data link, comprising a sending module operating at a cryogenic temperature less than 100 K. An ultrasensitive electro-optic modulator, sensitive to input voltages of less than 10 mV, may include at least one optically active layer of graphene, which may be part of a microscale resonator, which in turn may be integrated with an optical waveguide or an optical fiber. The optoelectronic data link enables optical output of weak electrical signals from superconducting or other cryogenic electronic devices in either digital or analog form. The modulator may be integrated on the same chip as the cryogenic electrical devices. A plurality of cryogenic electrical devices may generate a plurality of electrical signals, each coupled to its own modulator. The plurality of modulators may be resonant at different frequencies, and coupled to a common optical output line to transmit a combined wavelength-division-multiplexed (WDM) optical signal.Type: GrantFiled: October 5, 2018Date of Patent: May 5, 2020Assignee: SeeQC Inc.Inventors: Igor V. Vernik, Oleg A. Mukhanov, Alan M. Kadin, Christopher Thomas Phare, Michal Lipson, Keren Bergman
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Patent number: 10281747Abstract: A low-cost, robust method for automatically tuning a coupled resonator to match a wavelength of electromagnetic radiation emitted from an applied laser source. Dithering signals are used for automatic wavelength tuning and thermal stabilization of microring resonators. The disclosed method can be applied using low-speed analog and digital circuitry, to create a complete photonic interconnection network. The methods disclosed also automatically detect, measure, and correct for resonance shift.Type: GrantFiled: July 16, 2015Date of Patent: May 7, 2019Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Kishore Padmaraju, Keren Bergman
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Patent number: 10158447Abstract: An optical communication system includes a plurality of optical system nodes, a plurality of optical space switches and a plurality of optical fibers. The plurality of optical system nodes each includes at least one reconfigurable optical add/drop multiplexer (ROADM). The optical system nodes each have at least one client side port and at least one line side port. Each optical space switch is operatively coupled to the line side port of one of the plurality of optical system nodes. Each of the optical fibers couples one of the optical space switches to another of the optical space switches.Type: GrantFiled: September 11, 2015Date of Patent: December 18, 2018Assignees: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA, THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Daniel Kilper, Keren Bergman, Gil Zussman, Berk Birand
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Patent number: 10097281Abstract: A cryogenic optoelectronic data link, comprising a sending module operating at a cryogenic temperature less than 100 K. An ultrasensitive electro-optic modulator, sensitive to input voltages of less than 10 mV, may include at least one optically active layer of graphene, which may be part of a microscale resonator, which in turn may be integrated with an optical waveguide or an optical fiber. The optoelectronic data link enables optical output of weak electrical signals from superconducting or other cryogenic electronic devices in either digital or analog form. The modulator may be integrated on the same chip as the cryogenic electrical devices. A plurality of cryogenic electrical devices may generate a plurality of electrical signals, each coupled to its own modulator. The plurality of modulators may be resonant at different frequencies, and coupled to a common optical output line to transmit a combined wavelength-division-multiplexed (WDM) optical signal.Type: GrantFiled: November 18, 2016Date of Patent: October 9, 2018Assignees: Hypres, Inc., Center for Technology Licensing at Cornell University, The Trustees of Columbia University in the City of New YorkInventors: Igor V. Vernik, Oleg A. Mukhanov, Alan M. Kadin, Christopher Thomas Phare, Michal Lipson, Keren Bergman
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Publication number: 20180287697Abstract: A method of interrogating a WDM optical communication system is provided to obtain one or more performance parameters. In accordance with the method, an optical probe wavelength is generated and possibly modulated in a prescribed manner. The probe signal is transmitted along a selected optical path through the WDM optical communication system for a duration of time that is less than a response time of network elements that impact signal quality along the selected optical path.Type: ApplicationFiled: December 5, 2016Publication date: October 4, 2018Inventors: Daniel KILPER, Atiyah Sayyidah AHSAN, Keren BERGMAN
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Publication number: 20180143374Abstract: In one embodiment an optoelectronic system can include a photonics interposer having a substrate and a functional interposer structure formed on the substrate, a plurality of through vias carrying electrical signals extending through the substrate and the functional interposer structure, and a plurality of wires carrying signals to different areas of the functional interposer structure. The system can further include one or more photonics device integrally formed in the functional interposer structure, and one or more prefabricated component attached to the functional interposer structure.Type: ApplicationFiled: October 27, 2017Publication date: May 24, 2018Inventors: Douglas COOLBAUGH, Michael WATTS, Michal LIPSON, Keren BERGMAN, Thomas KOCH, Jeremiah HEBDING, Daniel PASCUAL, Douglas LA TULIPE
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Patent number: 9831360Abstract: Embodiments of the present disclosure provide devices and methods involving the thermal stabilization of microring resonators, such as microring modulators. Power is measured via an on-chip photodetector integrated with a drop port of the microring resonator, providing a local measurement of average power. This average power is employed as a feedback measure to actively control a heater that is integrated with the microring resonator, in order to stabilize the resonant wavelength of the microring resonator in the presence of thermal fluctuations. Employing such a system, a microring modulator can maintain error-free performance under thermal fluctuations that would normally render it inoperable.Type: GrantFiled: October 9, 2013Date of Patent: November 28, 2017Assignees: McMaster University, The Trustees of Columbia University in the City of New YorkInventors: Andrew Knights, Dylan Logan, Kishore Padmaraju, Keren Bergman
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Publication number: 20170279557Abstract: An optical communication system includes a plurality of optical system nodes, a plurality of optical space switches and a plurality of optical fibers. The plurality of optical system nodes each includes at least one reconfigurable optical add/drop multiplexer (ROADM). The optical system nodes each have at least one client side port and at least one line side port. Each optical space switch is operatively coupled to the line side port of one of the plurality of optical system nodes. Each of the optical fibers couples one of the optical space switches to another of the optical space switches.Type: ApplicationFiled: September 11, 2015Publication date: September 28, 2017Inventors: Daniel KILPER, Keren BERGMAN, GIL ZUSSMAN, BERK BIRAND
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Publication number: 20160227300Abstract: Optical network routes an optical message from at least one source to at least two destination ports of a plurality of destination ports. The optical network includes at least one input port to receive the optical message, two or more output ports, each configured to communicate with a corresponding destination port of the plurality of destination ports, and a plurality of photonic switching nodes configured to route the optical message from the at least one input port to the at least two destination ports. In another aspect, optical network includes a monitor to measure an attribute of the optical message, and a photonic switching node to route the optical message between a source and a destination port based on the attribute. In another aspect, optical network includes a sensor to sample an optical message, and a processor to derive at least one eye diagram corresponding to the optical message.Type: ApplicationFiled: February 19, 2014Publication date: August 4, 2016Inventors: Caroline P. LAI, Keren Bergman
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Publication number: 20150323818Abstract: A low-cost, robust method for automatically tuning a coupled resonator to match a wavelength of electromagnetic radiation emitted from an applied laser source. Dithering signals are used for automatic wavelength tuning and thermal stabilization of microring resonators. The disclosed method can be applied using low-speed analog and digital circuitry, to create a complete photonic interconnection network. The methods disclosed also automatically detect, measure, and correct for resonance shift.Type: ApplicationFiled: July 16, 2015Publication date: November 12, 2015Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Kishore Padmaraju, Keren Bergman
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Publication number: 20150263190Abstract: Embodiments of the present disclosure provide devices and methods involving the thermal stabilization of microring resonators, such as microring modulators. Power is measured via an on-chip photodetector integrated with a drop port of the microring resonator, providing a local measurement of average power. This average power is employed as a feedback measure to actively control a heater that is integrated with the microring resonator, in order to stabilize the resonant wavelength of the microring resonator in the presence of thermal fluctuations. Employing such a system, a microring modulator can maintain error-free performance under thermal fluctuations that would normally render it inoperable.Type: ApplicationFiled: October 9, 2013Publication date: September 17, 2015Applicants: MCMASTER UNIVERSITY, THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Andrew Knights, Dylan Logan, Kishore Padmaraju, Keren Bergman
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Patent number: 8582972Abstract: An optical data storage system and method of use thereof are presented. The optical data storage system includes one or more optical buffer modules connected in series. Each optical buffer module includes a cross connect. Each cross connect is connected, by a pair of inputs and outputs, to an optical data storage unit, for example, a fiber delay line, by a pair to either an optical packet network or a cross connect of a first adjacent buffer module in the series, and by a pair to a cross connect of a second adjacent buffer module in the series. The buffer module also includes a read signal output line which is connected to a read signal input line of the second adjacent buffer module for transmitting a read signal. A control module within each buffer module directs the passage of data through the cross connect.Type: GrantFiled: August 31, 2007Date of Patent: November 12, 2013Assignee: The Trustees of Columbia University in the City of New YorkInventors: Benjamin A. Small, Assaf Shacham, Keren Bergman
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Patent number: 8340517Abstract: An on-chip data communications infrastructure includes a hybrid, photonic/electronic network. The network includes a plurality of interconnected optical switches, each under the control of an electronic router. The electronic routers are connected in a fashion similar to the optical switches, forming a parallel, photonic/electronic network. Electronic path setup messages are routed through the electronic network. At each hop, a photonic switching element in a parallel, photonic network is reserved. When the electronic path setup message reaches its destination, a chain of reserved optical switches is ready to channel the optical data through the photonic network.Type: GrantFiled: December 21, 2007Date of Patent: December 25, 2012Inventors: Assaf Shacham, Keren Bergman, Luca P. Carloni
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Patent number: 8326148Abstract: An optical network is disclosed comprising one or more photonic switching nodes is disclosed. Each of the switching nodes comprises a plurality of input ports; at least one output port; and a switch configured to route messages between the plurality of input ports and the at least one output port and provide bufferless resolution of contention between messages for a common output port.Type: GrantFiled: May 1, 2008Date of Patent: December 4, 2012Assignee: The Trustees of Columbia University in the City of New YorkInventors: Keren Bergman, Assaf Shacham