Patents by Inventor Abijith J. Kowligy

Abijith J. Kowligy 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).

  • Methods and apparatus for generating mid-infrared frequency combs
    Patent number: 11226534
    Abstract: Apparatus and methods for generating mid-IR frequency combs using intra-pulse DFG. A mode-locked pulse generation laser generates near-IR pulses which are amplified. The amplified pulses are spectrally broadened by a nonlinear element, for example a normal dispersion highly nonlinear fiber (ND-HNLF) to generate broadened pulses. The nonlinear spectral broadening element is a transparent dielectric material having a cubic nonlinear response. Broadened pulses are temporally compressed to generate short, high-power pulses which few-cycle conditioned pulses which are ready for the intrapulse DFG process. The DFG block generates a mid-IR comb by difference frequency generation. It might comprise an orientation patterned GaP (OP-GaP) crystal or a poled lithium niobate (PPLN) crystal.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 18, 2022
    Assignee: Fathom Radiant, PBC
    Inventors: Scott Diddams, Henry Timmers, Abijith J. Kowligy, Alexander Jacob Lind, Scott Papp
  • Methods and Apparatus for Generating Mid-Infrared Frequency Combs
    Publication number: 20200064708
    Abstract: Apparatus and methods for generating mid-IR frequency combs using intra-pulse DFG. A mode-locked pulse generation laser generates near-IR pulses which are amplified. The amplified pulses are spectrally broadened by a nonlinear element, for example a normal dispersion highly nonlinear fiber (ND-HNLF) to generate broadened pulses. The nonlinear spectral broadening element is a transparent dielectric material having a cubic nonlinear response. Broadened pulses are temporally compressed to generate short, high-power pulses which few-cycle conditioned pulses which are ready for the intrapulse DFG process. The DFG block generates a mid-IR comb by difference frequency generation. It might comprise an orientation patterned GaP (OP-GaP) crystal or a poled lithium niobate (PPLN) crystal.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Scott Diddams, Henry Timmers, Abijith J. Kowligy, Alexander Jacob Lind, Scott Papp