Patents by Inventor Jonathan KLAMKIN

Jonathan KLAMKIN 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: 20210181427
    Abstract: A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch ?, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3. The curves of the grating lines are constructed such that the emitting beam is shaped for efficient coupling to another optical component. The curves can also be tilted to reduce coupling back into the waveguide.
    Type: Application
    Filed: February 23, 2021
    Publication date: June 17, 2021
    Applicants: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Shusaku Hayashi, Yosuke Suzuki, Jonathan Klamkin, Yingheng Tang
  • Patent number: 11029466
    Abstract: There is set forth herein a method including a substrate; a dielectric stack disposed on the substrate; one or more photonics device integrated in the dielectric stack; and a laser light source having a laser stack including a plurality of structures arranged in a stack, wherein structures of the plurality of structures are integrated in the dielectric stack, wherein the laser stack includes an active region configured to emit light in response to the application of electrical energy to the laser stack.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: June 8, 2021
    Assignees: The Research Foundation for the State University of New York, The Regents of the University of California
    Inventors: William Charles, John Bowers, Douglas Coolbaugh, Daehwan Jung, Jonathan Klamkin, Douglas La Tulipe, Gerald L. Leake, Jr., Songtao Liu, Justin Norman
  • Publication number: 20210116645
    Abstract: A grating coupler having first and second ends for coupling a light beam to a waveguide of a chip includes a substrate configured to receive the light beam from the first end and transmit the light beam through the second end, the substrate having a first refractive index n1, a grating structure having curved grating lines arranged on the substrate, the grating structure having a second refractive index n1, wherein the curved grating lines have line width w and height d and are arranged by a pitch ?, wherein the second refractive index n2 is less than first refractive index n1, and a cladding layer configured to cover the grating structure, wherein the cladding layer has a third refractive index n3. The curves of the grating lines are constructed such that the emitting beam is shaped for efficient coupling to another optical component. The curves can also be tilted to reduce coupling back into the waveguide.
    Type: Application
    Filed: January 28, 2020
    Publication date: April 22, 2021
    Applicants: Mitsubishi Electric Research Laboratories, Inc., Mitsubishi Electric Corporation
    Inventors: Keisuke Kojima, Satoshi Nishikawa, Shusaku Hayashi, Yosuke Suzuki, Jonathan Klamkin, Yingheng Tang
  • Publication number: 20200166703
    Abstract: There is set forth herein a method including a substrate; a dielectric stack disposed on the substrate; one or more photonics device integrated in the dielectric stack; and a laser light source having a laser stack including a plurality of structures arranged in a stack, wherein structures of the plurality of structures are integrated in the dielectric stack, wherein the laser stack includes an active region configured to emit light in response to the application of electrical energy to the laser stack.
    Type: Application
    Filed: September 19, 2019
    Publication date: May 28, 2020
    Inventors: William CHARLES, John BOWERS, Douglas COOLBAUGH, Daehwan JUNG, Jonathan KLAMKIN, Douglas La Tulipe, Gerald L. LEAKE, JR., Songtao LIU, Justin NORMAN
  • Publication number: 20180081118
    Abstract: Two or more monolithic or heterogeneously integrated substrates are attached to each other and optically edge-coupled using spot-size converters. Spot-size converters are placed between planar optical waveguides and cleaved or etched facets in each substrate. The facets are provide optical edge coupling and the spot-size converters are used to adjust at least the size, shape, and divergence of the optical beams entering or exiting the optical waveguides as to improve the optical coupling between the substrates. In addition to spot-size converters, filtering and other light adjusting elements may be placed between the substrates. Integrated lasers, semiconductor optical amplifiers, and photonic integrated circuits can be provided with complementary metal-oxide semiconductor (CMOS)-compatible silicon (Si) photonic substrates, which can also contain integrated electronics.
    Type: Application
    Filed: May 1, 2017
    Publication date: March 22, 2018
    Applicant: Biond Photonics Inc.
    Inventors: Jonathan Klamkin, Sasa Ristic
  • Publication number: 20170207600
    Abstract: Methods for realizing integrated lasers and photonic integrated circuits on complimentary metal-oxide semiconductor (CMOS)-compatible silicon (Si) photonic chips, potentially containing integrated electronics, are disclosed. The integration techniques rely on light coupling with integrated light coupling elements such as turning mirrors, lenses, and surface grating couplers. Light is coupled from between two or more substrates using the light coupling elements. The technique can realize integrated lasers on Si where a gain flip chip (the second substrate) is bonded to a Si chip (the first substrate) and light is coupled between a waveguide in the gain flip chip to a Si waveguide by way of a turning mirror or grating coupler in the flip chip and a grating coupler in the Si chip. Integrated lenses and other elements such as spot-size converters can also be incorporated to alter the mode from the gain flip chip to enhance the coupling efficiency to the Si chip.
    Type: Application
    Filed: July 14, 2015
    Publication date: July 20, 2017
    Applicant: Biond Photonics Inc.
    Inventors: Jonathan Klamkin, Sasa Ristic
  • Publication number: 20140153075
    Abstract: A 2n quadrature amplitude modulation optical modulator has an optical input for receiving an optical signal. A first splitter is coupled to the optical input and has first and second outputs. A first optical modulation apparatus, coupled to the first output, applies a modulation scheme having 2n-2 constellation points to produce a first modulated optical signal representing an in-phase component. A second optical modulation apparatus, coupled to the second output, applies a modulation scheme having 2n-2 constellation point to produce a second modulated optical signal representing a quadrature component. An optical combiner combines the first and second modulated optical signals to produce an output modulated optical signal which is modulated with a modulation scheme having 2n constellation points.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 5, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Antonio MALACARNE, Francesco FRESI, Jonathan KLAMKIN, Luca POTI