Patents by Inventor Victor E. Grubsky

Victor E. Grubsky 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).

  • Mode coupling devices with complex spectral profile
    Patent number: 7110644
    Abstract: A mode coupling device is provided for coupling co-propagating modes in an optical waveguide to provide a gain flattening filter for use with an optical amplifier such as an erbium-doped fiber amplifier. The mode coupling device includes a plurality of long period grating sections having equal spatial periods, with adjacent grating sections separated by an interval of less than 10 periods in length. Also provided is a method for manufacturing the mode coupling device, including a method for determining the parameters of the device and a method for fine tuning the device to provide a loss spectrum closely matching the output spectrum of the optical amplifier. The mode coupling device is useful for flattening the gain of the optical amplifier.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: September 19, 2006
    Assignee: Sabeus, Inc.
    Inventors: Victor E. Grubsky, Dmitry S. Starodubov
  • Mode coupling devices with complex spectral profile
    Patent number: 6950576
    Abstract: A mode coupling device is provided for coupling co-propagating modes in an optical waveguide to provide a gain flattening filter for use with an optical amplifier such as an erbium-doped fiber amplifier. The mode coupling device includes a plurality of long period grating sections having equal spatial periods, with adjacent grating sections separated by an interval of less than 10 periods in length. Also provided is a method for manufacturing the mode coupling device, including a method for determining the parameters of the device and a method for fine tuning the device to provide a loss spectrum closely matching the output spectrum of the optical amplifier. The mode coupling device is useful for flattening the gain of the optical amplifier.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: September 27, 2005
    Assignee: Sabeus Photonics, Inc.
    Inventors: Victor E. Grubsky, Dmitry S. Starodubov