Patents by Inventor Richard Colter

Richard Colter 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).

  • Optical phase-sensitive amplifier with signal noise removal
    Patent number: 10498102
    Abstract: Phase modulation of an output optical signal from a phase-sensitive amplifier may be used to perform phase adjustment for optimal phase-sensitive amplification. Specifically, when the optical pump is phase modulated to suppress SBS, a second phase modulator may be used to counter dither the first phase modulator. Both phase modulators may be controlled by a phase shifter. Intensity modulation of the output optical signal may also be performed to reduce noise. In this manner, the OSNR of the output optical signal may be increased.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: December 3, 2019
    Assignee: Fujitsu Limited
    Inventors: Youichi Akasaka, Tadashi Ikeuchi, Daniel Bihon, Richard Colter
  • OPTICAL PHASE-SENSITIVE AMPLIFIER WITH SIGNAL NOISE REMOVAL
    Publication number: 20180366900
    Abstract: Phase modulation of an output optical signal from a phase-sensitive amplifier may be used to perform phase adjustment for optimal phase-sensitive amplification. Specifically, when the optical pump is phase modulated to suppress SBS, a second phase modulator may be used to counter dither the first phase modulator. Both phase modulators may be controlled by a phase shifter. Intensity modulation of the output optical signal may also be performed to reduce noise. In this manner, the OSNR of the output optical signal may be increased.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 20, 2018
    Inventors: Youichi Akasaka, Tadashi Ikeuchi, Daniel Bihon, Richard Colter