Patents by Inventor Kishmore K. Kamath

Kishmore K. Kamath 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).

  • Distributed bragg reflector laser and fabrication method
    Patent number: 6785313
    Abstract: A distributed Bragg reflector laser is fabricated wherein material defects are produced in the laser's tuning waveguide region. The defects may be created by introducing impurities into the region. The defects increase the non-radiative recombination rate of injected carriers, thereby decreasing FM efficiency and improving RF performance. Injected carrier electrons are substantially separated from injected carrier holes to reduce bimolecular and Auger recombination rates, thus improving tuning range.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: August 31, 2004
    Assignee: Lucent Technologies Inc.
    Inventor: Kishmore K. Kamath
  • Distributed Bragg reflector laser and fabrication method
    Patent number: 6548320
    Abstract: A distributed Bragg reflector laser is fabricated wherein material defects are produced in the laser's tuning waveguide region. The defects may be created by introducing impurities into the region. The defects increase the non-radiative recombination rate of injected carriers, thereby decreasing FM efficiency and improving RF performance. Injected carrier electrons are substantially separated from injected carrier holes to reduce bimolecular and Auger recombination rates, thus improving tuning range.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: April 15, 2003
    Assignee: Lucent Technologies Inc.
    Inventor: Kishmore K. Kamath