Patents by Inventor Mihika PRABHU
Mihika PRABHU 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: 20240248260Abstract: Provided herein are optical flow switches, and optical flow switch packages, implemented using photonic switches. The optical flow switch includes a network of photonic switches arranged between input and output ports of the optical flow switch. The network of photonic switches spans two or more reticles, and the two or more reticles may include photonic switching arrangements corresponding to repeated reticle masks or sets of reticle masks. The optical flow switch may be mounted to a glass substrate to form an optical flow switch package.Type: ApplicationFiled: January 19, 2024Publication date: July 25, 2024Applicant: Lightmatter, Inc.Inventors: Mihika Prabhu, Alexander Sludds, Aravind Kalaiah, Ajay Joshi, Bradford Turcott, Robert Turner, Nicholas C. Harris, Darius Bunandar
-
Patent number: 11914415Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: GrantFiled: May 4, 2022Date of Patent: February 27, 2024Assignee: Massachusetts Institute of TechnologyInventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Dirk Englund, Nicholas C. Harris
-
Publication number: 20230045938Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: ApplicationFiled: May 4, 2022Publication date: February 16, 2023Applicant: Massachusetts Institute of TechnologyInventors: Jacques Johannes CAROLAN, Mihika PRABHU, Scott A. SKIRLO, Yichen Shen, Marin SOLJACIC, DIRK ENGLUND, Nicholas C. HARRIS
-
Patent number: 11334107Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: GrantFiled: August 6, 2020Date of Patent: May 17, 2022Assignee: Massachusetts Institute of TechnologyInventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Dirk Englund, Nicholas Christopher Harris
-
Publication number: 20220043323Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: ApplicationFiled: October 15, 2021Publication date: February 10, 2022Applicant: Massachusetts Institute of TechnologyInventors: Scott A. SKIRLO, Cheryl Marie SORACE-AGASKAR, Marin SOLJACIC, Simon VERGHESE, Jeffrey S. HERD, Paul William JUODAWLKIS, Yi YANG, DIRK ENGLUND, Mihika PRABHU
-
Patent number: 11175562Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: GrantFiled: April 7, 2020Date of Patent: November 16, 2021Assignee: Massachusetts Institute of TechnologyInventors: Scott A. Skirlo, Cheryl Marie Sorace-Agaskar, Marin Soljacic, Simon Verghese, Jeffrey S. Herd, Paul William Juodawlkis, Yi Yang, Dirk Englund, Mihika Prabhu
-
Publication number: 20200379504Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: ApplicationFiled: August 6, 2020Publication date: December 3, 2020Inventors: Jacques Johannes CAROLAN, Mihika PRABHU, Scott A. SKIRLO, Yichen Shen, Marin SOLJACIC, DIRK ENGLUND, Nicholas Christopher HARRIS
-
Publication number: 20200333683Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: ApplicationFiled: April 7, 2020Publication date: October 22, 2020Inventors: Scott A. SKIRLO, Cheryl Marie SORACE-AGASKAR, Marin SOLJACIC, Simon VERGHESE, Jeffrey S. HERD, Paul William JUODAWLKIS, Yi YANG, DIRK ENGLUND, Mihika PRABHU
-
Patent number: 10768659Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: GrantFiled: February 12, 2019Date of Patent: September 8, 2020Assignee: Massachusetts Institute of TechnologyInventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Nicholas Christopher Harris, Dirk Englund
-
Patent number: 10649306Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: GrantFiled: February 25, 2019Date of Patent: May 12, 2020Assignee: Massachusetts Institute of TechnologyInventors: Scott A. Skirlo, Cheryl Marie Sorace-Agaskar, Marin Soljacic, Simon Verghese, Jeffrey S. Herd, Paul William Juodawlkis, Yi Yang, Dirk Robert Englund, Mihika Prabhu
-
Publication number: 20190294199Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: ApplicationFiled: February 12, 2019Publication date: September 26, 2019Inventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Nicholas Christopher Harris, Dirk Englund
-
Publication number: 20190265574Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: ApplicationFiled: February 25, 2019Publication date: August 29, 2019Inventors: Scott A. SKIRLO, Cheryl Marie SORACE-AGASKAR, Marin SOLJACIC, Simon VERGHESE, Jeffrey S. HERD, Paul William JUODAWLKIS, Yi YANG, Dirk Robert ENGLUND, Mihika PRABHU
-
Patent number: 10268232Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: GrantFiled: June 2, 2017Date of Patent: April 23, 2019Assignee: Massachusetts Institute of TechnologyInventors: Nicholas Christopher Harris, Jacques Johannes Carolan, Mihika Prabhu, Dirk Robert Englund, Scott A. Skirlo, Yichen Shen, Marin Soljacic
-
Patent number: 10261389Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: GrantFiled: June 22, 2017Date of Patent: April 16, 2019Assignee: Massachusetts Institute of TechnologyInventors: Scott Skirlo, Cheryl Marie Sorace-Agaskar, Marin Soljacic, Simon Verghese, Jeffrey S. Herd, Paul William Juodawlkis, Yi Yang, Dirk Robert Englund, Mihika Prabhu
-
Publication number: 20170371227Abstract: An integrated optical beam steering device includes a planar dielectric lens that collimates beams from different inputs in different directions within the lens plane. It also includes an output coupler, such as a grating or photonic crystal, that guides the collimated beams in different directions out of the lens plane. A switch matrix controls which input port is illuminated and hence the in-plane propagation direction of the collimated beam. And a tunable light source changes the wavelength to control the angle at which the collimated beam leaves the plane of the substrate. The device is very efficient, in part because the input port (and thus in-plane propagation direction) can be changed by actuating only log2 N of the N switches in the switch matrix. It can also be much simpler, smaller, and cheaper because it needs fewer control lines than a conventional optical phased array with the same resolution.Type: ApplicationFiled: June 22, 2017Publication date: December 28, 2017Inventors: Scott SKIRLO, Cheryl Marie Sorace-Agaskar, Marin Soljacic, Simon Verghese, Jeffrey S. Herd, Paul William Juodawlkis, Yi Yang, Dirk Robert Englund, Mihika Prabhu
-
Publication number: 20170351293Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.Type: ApplicationFiled: June 2, 2017Publication date: December 7, 2017Inventors: Jacques Johannes Carolan, Mihika PRABHU, Scott SKIRLO, Yichen SHEN, Marin SOLJACIC, Nicholas Christopher HARRIS, Dirk Robert ENGLUND