Patents by Inventor Adam Edwin Taylor Ward Barratt

Adam Edwin Taylor Ward Barratt 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).

  • Switching circuit for burst-mode tunable laser
    Patent number: 12009635
    Abstract: A method (600) for tuning a tunable laser (310) includes delivering a bias current (IDBR) to an anode of a distributed Bragg reflector (DBR) section diode (D2) disposed on a shared substrate of the tunable laser and receiving a burst mode signal (440) indicative of a burst-on state or a burst-off state. When the burst mode signal is indicative of the burst-off state, the method includes offsetting the bias current at the anode of the DBR section diode by one of sourcing a push current with the bias current to the anode of the DBR section diode or sinking a pull current away from the bias current at the anode of the DBR section diode. When the burst mode signal is indicative of the burst-on state, the method also includes ceasing any offsetting of the bias current at the anode of the DBR section diode.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: June 11, 2024
    Assignee: Google LLC
    Inventors: Tao Zhang, Cedric Fung Lam, Xiangjun Zhao, Shuang Yin, Liang Du, Changhong Joy Jiang, Adam Edwin Taylor Ward Barratt, Claudio Desanti, Muthu Nagarajan