Patents by Inventor Ilya Mirman

Ilya Mirman 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).

  • Spatially variable filter laser wavelength monitoring/control
    Patent number: 6371662
    Abstract: A feedback controlled laser diode communication device is disclosed that, as is common, has a laser diode that is modulated in response to an input signal to generate an optical signal, encoding the input signal. Spatially variable passband filter material, however, is arranged to receive at least a portion of the optical signal generated by the laser diode, preferably from the rear facet, and at least one detector is used to detect the thus filtered optical signal. Control circuitry then controls a wavelength of the laser diode based upon the response of the detector(s) to thus provide feedback control. As such, the device is particularly applicable to maintaining the tight channel spacings found in wavelength division multiplexed systems.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: April 16, 2002
    Assignee: Corning Lasertron, Inc.
    Inventors: Francis L. Leard, Scott Burroughs, Ilya Mirman
  • Spatially variable bandpass filter monitoring and feedback control of laser wavelength especially in wavelength division multiplexing communication systems
    Patent number: 6120190
    Abstract: A feedback controlled laser diode communication device is disclosed that, as is common, has a laser diode that is modulated in response to an input signal to generate an optical signal, encoding the input signal. Spatially variable passband filter material, however, is arranged to receive at least a portion of the optical signal generated by the laser diode, preferably from the rear facet, and at least one detector is used to detect the thus filtered optical signal. Control circuitry then controls a wavelength of the laser diode based upon the response of the detector(s) to thus provide feedback control. As such, the device is particularly applicable to maintaining the tight channel spacings found in wavelength division multiplexed systems.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: September 19, 2000
    Assignee: Lasertron, Inc.
    Inventors: Francis L. Leard, Scott Burroughs, Ilya Mirman