Patents by Inventor Harry Hior

Harry Hior 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).

  • Monolithic optically preamplified coherent photoreceiver arrays
    Publication number: 20070196113
    Abstract: An array of coherent phototoreceivers is constructed as an imager. Each photoreceiver comprises a local oscillator, a detector (mixer), an optical preamplifier (amplifier) and an electronic amplifier (TIA). A vertical cavity optical amplifier (VCSOA) is used either as the mixer or the preamplifier. The optical IF signal can be phase-shifted by 180° and detected to combine with the detected in-phase optical IF signal to obtain a balanced detector. The detector may use an avalanche photodiode with a trans-impedance amplifier for power reduction and higher gain.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 23, 2007
    Inventors: Ayub Fathimulla, Olaleye Aina, Harry Hior