Patents by Inventor Timothy P. McKenna

Timothy P. McKenna 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).

  • ULTRA-BROADBAND MID-INFRARED GENERATION IN DISPERSION-ENGINEERED THIN-FILM LITHIUM NIOBATE
    Publication number: 20230367177
    Abstract: In some embodiments, a device for generating mid-infrared radiation is provided. The device may include a thin film quadratic nonlinear waveguide formed on a mid-infrared transparent cladding by a thin film material of a predetermined film thickness, the waveguide having a predetermined etch depth and a predetermined top width. At least one of the predetermined film thickness, the predetermined etch depth, and the predetermined top width may be tuned for the device to generate a coherent idler wave as a mid-infrared radiation from a fixed pump wave and a tunable signal wave.
    Type: Application
    Filed: May 12, 2023
    Publication date: November 16, 2023
    Applicants: NTT RESEARCH, INC., THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Jatadhari MISHRA, Marc JANKOWSKI, Alexander Y. HWANG, Hubert S. STOKOWSKI, Timothy P. McKENNA, Amir H. SAFAVI-NAEINI, Martin M. FEJER
  • Apparatus and method for implementing a photonic radio front end
    Patent number: 10063320
    Abstract: Apparatuses and methods for implementing a photonic radio front end are provided. An example apparatus may include a photonic comb filter configured to generate a photonic pulse train at a plurality of carrier frequencies, and a photonic upconverter. The photonic upconverter may be configured to receive outbound data from a data source, and encode and photomix the outbound data onto each of the carrier frequencies within the plurality of carrier frequencies to generate associated upconverted waveforms on each of the carrier frequencies. The apparatus may further comprise a transmit channel selector configured to receive the upconverted waveforms on each of the carrier frequencies, receive a control signal selecting one or more carrier frequencies for transmission of the outbound data, and filter out the upconverted waveforms at unselected carrier frequencies to provide upconverted waveforms at the selected carrier frequencies.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 28, 2018
    Assignee: The Johns Hopkins University
    Inventors: Thomas R. Clark, Jr., Jay H. Song, Timothy P. McKenna, Keith G. Petrillo, Jeffrey A. Nanzer, Stuart A. Jackson, Olukayode K. Okusaga
  • Apparatus and Method for Implementing a Photonic Radio Front End
    Publication number: 20170207855
    Abstract: Apparatuses and methods for implementing a photonic radio front end are provided. An example apparatus may include a photonic comb filter configured to generate a photonic pulse train at a plurality of carrier frequencies, and a photonic upconverter. The photonic upconverter may be configured to receive outbound data from a data source, and encode and photomix the outbound data onto each of the carrier frequencies within the plurality of carrier frequencies to generate associated upconverted waveforms on each of the carrier frequencies. The apparatus may further comprise a transmit channel selector configured to receive the upconverted waveforms on each of the carrier frequencies, receive a control signal selecting one or more carrier frequencies for transmission of the outbound data, and filter out the upconverted waveforms at unselected carrier frequencies to provide upconverted waveforms at the selected carrier frequencies.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 20, 2017
    Inventors: Thomas R. Clark, JR., Jay H. Song, Timothy P. McKenna, Keith G. Petrillo, Jeffrey A. Nanzer, Stuart A. Jackson, Olukayode K. Okusaga