Patents by Inventor Gavin Christopher Crow

Gavin Christopher Crow 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).

  • Semiconductor optical amplifiers
    Publication number: 20040196540
    Abstract: A semiconductor optical amplifier has the materials and dimensions of its waveguide chosen to obtain, at an intended working wavelength (say the C band), a confinement factor of less than 0.06 for the most confined mode and mode field diameters in the range from about 3 to about 4 &mgr;m for the fundamental TE and TM modes, based on a 1/e mode field boundary, whereby the semiconductor optical amplifier can be readily coupled to a tensed optical fiber without requiring a mode expander or additional optics.
    Type: Application
    Filed: February 28, 2003
    Publication date: October 7, 2004
    Inventors: Ian Francis Lealman, Gavin Christopher Crow