Patents by Inventor Benjamin Roy Moss
Benjamin Roy Moss 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: 11940621Abstract: An apparatus comprises: a first integrated circuit comprising: a plurality of sets of optical waveguides, each set of optical waveguides including a plurality of optical waveguide segments, and a plurality of optical emitter elements arranged over a first surface of the first integrated circuit, each optical emitter element coupled to a distal end of one of the optical waveguide segments; and a second integrated circuit comprising: a plurality of optical phase shifters that each provide a phase-shifted optical wave that is coupled to the first integrated circuit from a first edge surface of the second integrated circuit. The first edge surface of the second integrated circuit is in proximity to a row of proximal ends of the optical waveguide segments of a first set of the plurality of sets of optical waveguides.Type: GrantFiled: September 2, 2021Date of Patent: March 26, 2024Assignee: Analog Photonics LLCInventors: Michael Robert Watts, Ehsan Shah Hosseini, Benjamin Roy Moss, Christopher Vincent Poulton
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Publication number: 20230324763Abstract: Operating an OPA includes: applying, by each phase shifter element an optical phase shift to an optical wave that propagates through the phase shifter element and propagates to a corresponding emitter element, where the optical phase shift is based on an electrical signal provided to the phase shifter element; providing, by each driver element an electrical signal to at least one of the phase shifter elements based on a digital code value received at an input of the driver element; and computing one or more digital code values that are provided to respective inputs of driver elements in the array of driver elements based on processing OPA control information. The processing includes: computing optical phase shift information based at least in part on the OPA control information, and computing a corresponding digital code value based at least in part on the optical phase shift information.Type: ApplicationFiled: April 5, 2023Publication date: October 12, 2023Applicant: Analog Photonics LLCInventors: Benjamin Roy Moss, Peter Nicholas Russo, Oleg Shatrovoy, Christopher Vincent Poulton
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Patent number: 11762146Abstract: 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 13, 2022Date of Patent: September 19, 2023Assignee: Analog Photonics LLCInventors: Michael Robert Watts, Benjamin Roy Moss, Ehsan Shah Hosseini, Christopher Vincent Poulton, Peter Nicholas Russo
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Publication number: 20220244454Abstract: 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: ApplicationFiled: April 13, 2022Publication date: August 4, 2022Inventors: Michael Robert Watts, Benjamin Roy Moss, Ehsan Shah Hosseini, Christopher Vincent Poulton, Peter Nicholas Russo
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Publication number: 20220146903Abstract: An apparatus includes: an optical phased array (e.g., on a photonic integrated circuit), a focusing element, which can be at a fixed position relative to the optical phased array and configured to receive an optical beam from the optical phased array, and a steering element, which can be at a fixed position relative to the focusing element and configured to transmit the optical beam received from the focusing element. In some implementations, at least one of the focusing element or the steering element is externally coupled to the photonic integrated circuit.Type: ApplicationFiled: October 14, 2021Publication date: May 12, 2022Inventors: Michael Robert Watts, Katia Shtyrkova, Christopher Vincent Poulton, Ehsan Shah Hosseini, Benjamin Roy Moss
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Patent number: 11320585Abstract: 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: August 14, 2020Date of Patent: May 3, 2022Assignee: Analog Photonics LLCInventors: Michael Robert Watts, Benjamin Roy Moss, Ehsan Shah Hosseini, Christopher Vincent Poulton, Peter Nicholas Russo
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Publication number: 20220075186Abstract: An apparatus comprises: a first integrated circuit comprising: a plurality of sets of optical waveguides, each set of optical waveguides including a plurality of optical waveguide segments, and a plurality of optical emitter elements arranged over a first surface of the first integrated circuit, each optical emitter element coupled to a distal end of one of the optical waveguide segments; and a second integrated circuit comprising: a plurality of optical phase shifters that each provide a phase-shifted optical wave that is coupled to the first integrated circuit from a first edge surface of the second integrated circuit. The first edge surface of the second integrated circuit is in proximity to a row of proximal ends of the optical waveguide segments of a first set of the plurality of sets of optical waveguides.Type: ApplicationFiled: September 2, 2021Publication date: March 10, 2022Applicant: Analog Photonics LLCInventors: Michael Robert Watts, Ehsan Shah Hosseini, Benjamin Roy Moss, Christopher Vincent Poulton
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Publication number: 20210278707Abstract: Controlling an optical phased array includes applying optical phase shifts by an array of phase shifter (PS) elements, each PS element applying an optical phase shift based on an input voltage signal applied across first and second terminals of the PS element, providing output voltage signals from an array of driver elements. During a charging time period, each driver element provides an output voltage signal to determine a corresponding input voltage signal applied across at least one of the PS elements; an array of switches control connectivity between the driver elements and respective PS elements; and all of the second terminals of all of the PS elements in the array of PS elements are maintained at a common voltage. The total number of switches in the array of switches is at least as large as the total number of PS elements in the array of PS elements.Type: ApplicationFiled: March 4, 2021Publication date: September 9, 2021Inventors: Benjamin Roy Moss, Erman Timurdogan, Christopher Vincent Poulton, Shahriar Shahramian
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Publication number: 20200379172Abstract: 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: ApplicationFiled: August 14, 2020Publication date: December 3, 2020Inventors: Michael Robert Watts, Benjamin Roy Moss, Ehsan Shah Hosseini, Christopher Vincent Poulton, Peter Nicholas Russo
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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
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Patent number: 10587344Abstract: Devices and techniques for integrated optical data communication. A method of encoding symbols in an optical signal may include encoding a first symbol by injecting charge carriers, at a first rate, into a semiconductor device, such as a PIN diode. The method may also include encoding a second symbol by injecting charge carriers, at a second rate, into the semiconductor device. The first rate may exceed the second rate. A modulator driver circuit may include a resistive circuit coupled between supply terminal and drive terminals. The modulator driver circuit may also include a control circuit coupled between a data terminal and the resistive circuit. The control circuit may modulate a resistance of the resistive circuit by selectively coupling one or more of a plurality of portions of the resistive circuit to the drive terminal based on data to be optically encoded.Type: GrantFiled: October 3, 2018Date of Patent: March 10, 2020Assignee: Massachusetts Institute of TechnologyInventors: Benjamin Roy Moss, Jason Scott Orcutt, Vladimir Marko Stojanovic
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Publication number: 20190243081Abstract: 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: ApplicationFiled: April 16, 2019Publication date: August 8, 2019Inventors: Michael Robert Watts, Benjamin Roy Moss, Ehsan Shah Hosseini, Christopher Poulton, Peter Nicholas Russo
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Publication number: 20190149240Abstract: Devices and techniques for integrated optical data communication. A method of encoding symbols in an optical signal may include encoding a first symbol by injecting charge carriers, at a first rate, into a semiconductor device, such as a PIN diode. The method may also include encoding a second symbol by injecting charge carriers, at a second rate, into the semiconductor device. The first rate may exceed the second rate. A modulator driver circuit may include a resistive circuit coupled between supply terminal and drive terminals. The modulator driver circuit may also include a control circuit coupled between a data terminal and the resistive circuit. The control circuit may modulate a resistance of the resistive circuit by selectively coupling one or more of a plurality of portions of the resistive circuit to the drive terminal based on data to be optically encoded.Type: ApplicationFiled: October 3, 2018Publication date: May 16, 2019Applicant: Massachusetts Institute of TechnologyInventors: Benjamin Roy Moss, Jason Scott Orcutt, Vladimir Marko Stojanovic
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Patent number: 10135539Abstract: Devices and techniques for integrated optical data communication. A method of encoding symbols in an optical signal may include encoding a first symbol by injecting charge carriers, at a first rate, into a semiconductor device, such as a PIN diode. The method may also include encoding a second symbol by injecting charge carriers, at a second rate, into the semiconductor device. The first rate may exceed the second rate. A modulator driver circuit may include a resistive circuit coupled between supply terminal and drive terminals. The modulator driver circuit may also include a control circuit coupled between a data terminal and the resistive circuit. The control circuit may modulate a resistance of the resistive circuit by selectively coupling one or more of a plurality of portions of the resistive circuit to the drive terminal based on data to be optically encoded.Type: GrantFiled: February 15, 2013Date of Patent: November 20, 2018Assignee: Massachusetts Institute of TechnologyInventors: Benjamin Roy Moss, Jason Scott Orcutt, Vladimir Marko Stojanovic
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Publication number: 20160013867Abstract: Devices and techniques for integrated optical data communication. A method of encoding symbols in an optical signal may include encoding a first symbol by injecting charge carriers, at a first rate, into a semiconductor device, such as a PIN diode. The method may also include encoding a second symbol by injecting charge carriers, at a second rate, into the semiconductor device. The first rate may exceed the second rate. A modulator driver circuit may include a resistive circuit coupled between supply terminal and drive terminals. The modulator driver circuit may also include a control circuit coupled between a data terminal and the resistive circuit. The control circuit may modulate a resistance of the resistive circuit by selectively coupling one or more of a plurality of portions of the resistive circuit to the drive terminal based on data to be optically encoded.Type: ApplicationFiled: February 15, 2013Publication date: January 14, 2016Applicant: Massachusetts Institute of TechnologyInventors: Benjamin Roy Moss, Jason Scott Orcutt, Vladimir Marko Stojanovic