Patents by Inventor Ramesh K. Shori

Ramesh K. Shori 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).

  • Multi-wavelength pump method for improving performance of erbium-based lasers
    Patent number: 7633990
    Abstract: A method for increasing the efficiency of generating lasers by pumping two separate wavelengths into an erbium-based medium to populate the 4I11/2 state and depopulate the 4I13/2 state. A first excitation wavelength region is located between approximately 955 nm to approximately 1100 nm. The second excitation wavelength region is located between approximately 1600 nm to approximately 1850 nm. This multi-wavelength pumping scheme may be operated in continuous wave or quasi-continuous wave mode.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: December 15, 2009
    Inventor: Ramesh K. Shori
  • Silicon acousto-optic modulator
    Patent number: 7385749
    Abstract: An acousto-optic modulator includes a (100), (010) or (001) single crystal silicon acousto-optic interaction medium, and at least one transducer for emitting an acoustic wave attached to the single crystal. The transducer has a first electrode layer disposed on one side and a second electrode layer disposed on its other side. The transducer is aligned to the single crystal so that the direction of acoustic propagation in the silicon crystal is substantially along the (100), (010) or (001) direction. A q-switched laser includes a modulator according to the invention.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: June 10, 2008
    Assignee: Cleveland Crystals, Inc.
    Inventors: Christopher N. Pannell, Thomas Stenger, Jonathan David Ward, Melvin E. Pedinoff, Ramesh K. Shori
  • Multi-wavelength pump method for improving performance of erbium-based lasers
    Publication number: 20070297482
    Abstract: A method for increasing the efficiency of generating lasers by pumping two separate wavelengths into an erbium-based medium to populate the 4I11/2 state and depopulate the 4I13/2 state. A first excitation wavelength region is located between approximately 955 nm to approximately 1100 nm. The second excitation wavelength region is located between approximately 1600 nm to approximately 1850 nm. This multi-wavelength pumping scheme may be operated in continuous wave or quasi-continuous wave mode.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 27, 2007
    Inventor: Ramesh K. Shori
  • Silicon acousto-optic modulator
    Publication number: 20070171513
    Abstract: An acousto-optic modulator includes a (100), (010) or (001) single crystal silicon acousto-optic interaction medium, and at least one transducer for emitting an acoustic wave attached to the single crystal. The transducer has a first electrode layer disposed on one side and a second electrode layer disposed on its other side. The transducer is aligned to the single crystal so that the direction of acoustic propagation in the silicon crystal is substantially along the (100), (010) or (001) direction. A q-switched laser includes a modulator according to the invention.
    Type: Application
    Filed: September 26, 2006
    Publication date: July 26, 2007
    Inventors: Christopher N. Pannell, Thomas Stenger, Jonathan David Ward, Melvin E. Pedinoff, Ramesh K. Shori