Patents by Inventor Rajeev Ram

Rajeev Ram 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).

  • Patent number: 10771160
    Abstract: A laser module includes a laser source and an optical marshalling module. The laser source is configured to generate and output a plurality of laser beams. The plurality of laser beams have different wavelengths relative to each other. The different wavelengths are distinguishable to an optical data communication system. The optical marshalling module is configured to receive the plurality of laser beams from the laser source and distribute a portion of each of the plurality of laser beams to each of a plurality of optical output ports of the optical marshalling module, such that all of the different wavelengths of the plurality of laser beams are provided to each of the plurality of optical output ports of the optical marshalling module. An optical amplifying module can be included to amplify laser light output from the optical marshalling module and provide the amplified laser light as output from the laser module.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: September 8, 2020
    Assignee: Ayar Labs, Inc.
    Inventors: Chen Sun, Roy Edward Meade, Mark Wade, Alexandra Wright, Vladimir Stojanovic, Rajeev Ram, Milos Popovic, Derek Van Orden
  • Patent number: 10749603
    Abstract: An interposer device includes a substrate that includes a laser source chip interface region, a silicon photonics chip interface region, an optical amplifier module interface region. A fiber-to-interposer connection region is formed within the substrate. A first group of optical conveyance structures is formed within the substrate to optically connect a laser source chip to a silicon photonics chip when the laser source chip and the silicon photonics chip are interfaced to the substrate. A second group of optical conveyance structures is formed within the substrate to optically connect the silicon photonics chip to an optical amplifier module when the silicon photonics chip and the optical amplifier module are interfaced to the substrate. A third group of optical conveyance structures is formed within the substrate to optically connect the optical amplifier module to the fiber-to-interposer connection region when the optical amplifier module is interfaced to the substrate.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: August 18, 2020
    Assignee: Ayar Labs, Inc.
    Inventors: Chen Sun, Roy Edward Meade, Mark Wade, Alexandra Wright, Vladimir Stojanovic, Rajeev Ram, Milos Popovic, Derek Van Orden, Michael Davenport
  • Publication number: 20200169056
    Abstract: A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply. An optical fiber is connected to receive the laser light supply from the optical output of the laser light generator. An optical distribution network has an optical input connected to receive the laser light supply from the optical fiber. The optical distribution network is configured to transmit the laser light supply to each of one or more optical transceivers and/or optical sensors. The laser light generator is physically separate from each of the one or more optical transceivers and/or optical sensors.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Milos Popovic, Rajeev Ram, Vladimir Stojanovic, Chen Sun, Mark Taylor Wade, Alexandra Carroll Wright
  • Patent number: 10581215
    Abstract: A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply. An optical fiber is connected to receive the laser light supply from the optical output of the laser light generator. An optical distribution network has an optical input connected to receive the laser light supply from the optical fiber. The optical distribution network is configured to transmit the laser light supply to each of one or more optical transceivers and/or optical sensors. The laser light generator is physically separate from each of the one or more optical transceivers and/or optical sensors.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: March 3, 2020
    Assignee: Ayar Labs, Inc.
    Inventors: Milos Popovic, Rajeev Ram, Vladimir Stojanovic, Chen Sun, Mark Taylor Wade, Alexandra Carroll Wright
  • Publication number: 20190245100
    Abstract: Method and structural embodiments are described which provide an integrated structure using polysilicon material having different optical properties in different regions of the structure.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Inventors: Roy Meade, Karan Mehta, Efraim Megged, Jason Orcutt, Milos Popovic, Rajeev Ram, Jeffrey Shainline, Zvi Sternberg, Vladimir Stojanovic, Ofer Tehar-Zahav
  • Patent number: 10312388
    Abstract: Method and structural embodiments are described which provide an integrated structure using polysilicon material having different optical properties in different regions of the structure.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: June 4, 2019
    Assignees: Micron Technology, Inc., Massachusetts Institute of Technology
    Inventors: Roy Meade, Karan Mehta, Efraim Megged, Jason Orcutt, Milos Popovic, Rajeev Ram, Jeffrey Shainline, Zvi Sternberg, Vladimir Stojanovic, Ofer Tehar-Zahav
  • Publication number: 20190089116
    Abstract: A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply. An optical fiber is connected to receive the laser light supply from the optical output of the laser light generator. An optical distribution network has an optical input connected to receive the laser light supply from the optical fiber. The optical distribution network is configured to transmit the laser light supply to each of one or more optical transceivers and/or optical sensors. The laser light generator is physically separate from each of the one or more optical transceivers and/or optical sensors.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 21, 2019
    Inventors: Milos Popovic, Rajeev Ram, Vladimir Stojanovic, Chen Sun, Mark Taylor Wade, Alexandra Carroll Wright
  • Publication number: 20190089461
    Abstract: An interposer device includes a substrate that includes a laser source chip interface region, a silicon photonics chip interface region, an optical amplifier module interface region. A fiber-to-interposer connection region is formed within the substrate. A first group of optical conveyance structures is formed within the substrate to optically connect a laser source chip to a silicon photonics chip when the laser source chip and the silicon photonics chip are interfaced to the substrate. A second group of optical conveyance structures is formed within the substrate to optically connect the silicon photonics chip to an optical amplifier module when the silicon photonics chip and the optical amplifier module are interfaced to the substrate. A third group of optical conveyance structures is formed within the substrate to optically connect the optical amplifier module to the fiber-to-interposer connection region when the optical amplifier module is interfaced to the substrate.
    Type: Application
    Filed: November 16, 2018
    Publication date: March 21, 2019
    Inventors: Chen Sun, Roy Edward Meade, Mark Wade, Alexandra Wright, Vladimir Stojanovic, Rajeev Ram, Milos Popovic, Derek Van Orden, Michael Davenport
  • Patent number: 10135218
    Abstract: A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply. An optical fiber is connected to receive the laser light supply from the optical output of the laser light generator. An optical distribution network has an optical input connected to receive the laser light supply from the optical fiber. The optical distribution network is configured to transmit the laser light supply to each of one or more optical transceivers and/or optical sensors. The laser light generator is physically separate from each of the one or more optical transceivers and/or optical sensors.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 20, 2018
    Assignee: Ayar Labs, Inc.
    Inventors: Milos Popovic, Rajeev Ram, Vladimir Stojanovic, Chen Sun, Mark Taylor Wade, Alexandra Carroll Wright
  • Publication number: 20180217122
    Abstract: A system for molecular mapping includes a semiconductor substrate defining a reservoir to receive a sample of molecules and a nanofluidic channel in fluid communication with the reservoir. The system also includes a plurality of electrodes, in electrical communication with the nanofluidic channel, to electrophoretically trap the sample of molecules in the nanofluidic channel. At least one avalanche photodiode is fabricated in the semiconductor substrate and disposed within an optical near-field of the nanofluidic channel to detect fluorescence emission from at least one molecule in the sample of molecules.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Inventors: Huaiyu Meng, Rajeev Ram
  • Publication number: 20180019820
    Abstract: A laser module includes a laser source and an optical marshalling module. The laser source is configured to generate and output a plurality of laser beams. The plurality of laser beams have different wavelengths relative to each other. The different wavelengths are distinguishable to an optical data communication system. The optical marshalling module is configured to receive the plurality of laser beams from the laser source and distribute a portion of each of the plurality of laser beams to each of a plurality of optical output ports of the optical marshalling module, such that all of the different wavelengths of the plurality of laser beams are provided to each of the plurality of optical output ports of the optical marshalling module. An optical amplifying module can be included to amplify laser light output from the optical marshalling module and provide the amplified laser light as output from the laser module.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 18, 2018
    Inventors: Chen Sun, Roy Edward Meade, Mark Wade, Alexandra Wright, Vladimir Stojanovic, Rajeev Ram, Milos Popovic, Derek Van Orden
  • Publication number: 20170365726
    Abstract: Method and structural embodiments are described which provide an integrated structure using polysilicon material having different optical properties in different regions of the structure.
    Type: Application
    Filed: August 16, 2017
    Publication date: December 21, 2017
    Inventors: Roy Meade, Karan Mehta, Efraim Megged, Jason Orcutt, Milos Popovic, Rajeev Ram, Jeffrey Shainline, Zvi Sternberg, Vladimir Stojanovic, Ofer Tehar-Zahav
  • Patent number: 9768330
    Abstract: Method and structural embodiments are described which provide an integrated structure using polysilicon material having different optical properties in different regions of the structure.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: September 19, 2017
    Assignees: Micron Technology, Inc., Massachusetts Institute of Technology
    Inventors: Roy Meade, Karan Mehta, Efraim Megged, Jason Orcutt, Milos Popovic, Rajeev Ram, Jeffrey Shainline, Zvi Sternberg, Vladimir Stojanovic, Ofer Tehar-Zahav
  • Patent number: 9647192
    Abstract: A solar concentrator assembly includes a tripod, a base, a reflective dish, a receptacle, and a thermoelectric module or a heat transfer module. The tripod includes legs and a top tripod connector coupled to top portions thereof. The base includes a rod coupled to the tripod; a bottom support structure coupled to the rod; a top support structure coupled to the bottom support structure; an extension coupled to the bottom support structure and the top support structure; and a cap with recesses mounted to the top support structure. The reflective dish includes support rods received within the recesses; a pliable material forms panels, wherein the support rods are inserted into seams between the panels; and a reflective material disposed on the pliable material. The receptacle is connected to the base and disposed within the reflective dish. The thermoelectric module or the heat transfer module is partially disposed within the receptacle.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 9, 2017
    Assignee: One Earth Designs Inc.
    Inventors: Scot G. Frank, Catlin Powers, Amy Qian, Orian Z. Welling, Brad Simpson, Reja Amatya, Rajeev Ram
  • Publication number: 20170098917
    Abstract: A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply. An optical fiber is connected to receive the laser light supply from the optical output of the laser light generator. An optical distribution network has an optical input connected to receive the laser light supply from the optical fiber. The optical distribution network is configured to transmit the laser light supply to each of one or more optical transceivers and/or optical sensors. The laser light generator is physically separate from each of the one or more optical transceivers and/or optical sensors.
    Type: Application
    Filed: September 27, 2016
    Publication date: April 6, 2017
    Inventors: Milos Popovic, Rajeev Ram, Vladimir Stojanovic, Chen Sun, Mark Taylor Wade, Alexandra Carroll Wright
  • Publication number: 20160343931
    Abstract: A solar concentrator assembly includes a tripod, a base, a reflective dish, a receptacle, and a thermoelectric module or a heat transfer module. The tripod includes legs and a top tripod connector coupled to top portions thereof. The base includes a rod coupled to the tripod; a bottom support structure coupled to the rod; a top support structure coupled to the bottom support structure; an extension coupled to the bottom support structure and the top support structure; and a cap with recesses mounted to the top support structure. The reflective dish includes support rods received within the recesses; a pliable material forms panels, wherein the support rods are inserted into seams between the panels; and a reflective material disposed on the pliable material. The receptacle is connected to the base and disposed within the reflective dish. The thermoelectric module or the heat transfer module is partially disposed within the receptacle.
    Type: Application
    Filed: February 12, 2016
    Publication date: November 24, 2016
    Inventors: Scot G. Frank, Catlin Powers, Amy Qian, Orian Z. Welling, Brad Simpson, Reja Amatya, Rajeev Ram
  • Patent number: 9422409
    Abstract: Active devices such as pumps and mixers have been fabricated in plastic-PDMS hybrid devices. By utilizing functionalized bis-silane primers, bond strength between Polycarbonate or PMMA and PDMS improved in dry and aqueous environments. Plastic-primer-PDMS layers exposed to acid and base solutions at 70° C. for 2 hours showed no signs of delamination at 30 psi for pH ?1 to 15 and 60 psi for pH 0 to 15. A peristaltic pump fabricated in polycarbonate achieved consistent flow rates up to peristaltic cycle frequencies of 10 Hz in water, 1OM HCl, and 1OM NaOH solutions.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 23, 2016
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: S. Kevin Lee, Harry Lee, J. Rajeev Ram
  • Patent number: 9291365
    Abstract: A solar concentrator assembly includes a tripod, a base, a reflective dish, a receptacle, and a thermoelectric module or a heat transfer module. The tripod includes legs and a top tripod connector coupled to top portions thereof. The base includes a rod coupled to the tripod; a bottom support structure coupled to the rod; a top support structure coupled to the bottom support structure; an extension coupled to the bottom support structure and the top support structure; and a cap with recesses mounted to the top support structure. The reflective dish includes support rods received within the recesses; a pliable material forms panels, wherein the support rods are inserted into seams between the panels; and a reflective material disposed on the pliable material. The receptacle is connected to the base and disposed within the reflective dish. The thermoelectric module or the heat transfer module is partially disposed within the receptacle.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: March 22, 2016
    Assignee: One Earth Designs Inc.
    Inventors: Scot G. Frank, Catlin Powers, Amy Qian, Orian Z. Welling, Brad Simpson, Reja Amatya, Rajeev Ram
  • Publication number: 20160056309
    Abstract: Method and structural embodiments are described which provide an integrated structure using polysilicon material having different optical properties in different regions of the structure.
    Type: Application
    Filed: August 25, 2014
    Publication date: February 25, 2016
    Inventors: Roy Meade, Karan Mehta, Efraim Megged, Jason Orcutt, Milos Popovic, Rajeev Ram, Jeffrey Shainline, Zvi Sternberg, Vladimir Stojanovic, Ofer Tehar-Zahav
  • Patent number: 9248421
    Abstract: In one embodiment, the present invention introduces integrated fluid injection and mixing devices to enable pH control in a miniature parallel integrated bioreactor array system. In another embodiment, the environmental conditions of the growth chamber is enabled through fluidic injections in a miniature parallel cell culture system. In still another embodiment, the present invention utilizes gas switches to control oxygen concentration within a miniature parallel integrated bioreactor array.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: February 2, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Harry Lee, Rajeev Ram, Klavs Jensen