Patents by Inventor Igor K. Czajknwski

Igor K. Czajknwski 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).

  • Electro absorption optical modulators
    Patent number: 5530580
    Abstract: The saturation effects observed in an MQW electro-absorption modulator are reduced by modifying the composition of the MQW structure so that the barrier layers, that are interleaved with the quantum well layers, are in tension.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: June 25, 1996
    Assignee: Northern Telecom Limited
    Inventors: George H. B. Thompson, Igor K. Czajknwski, Mark A. Gibbon