Patents by Inventor Arthur S. Greenblatt

Arthur S. Greenblatt 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).

  • Fabrication and phase tuning of an optical waveguide device
    Patent number: 5259061
    Abstract: The manufacture of an optical waveguide device utilizing a fast, accurate method for tuning of the output phase angle of such devices to a desired operating point. Tuning is accomplished by adjusting the accumulated phase along a waveguide arm of the device by removing optical waveguide material using laser ablation. Due to the change in waveguide geometry in the ablated region, the optical phase velocity is changed and thus the optical path length is affected in that section of waveguide, thereby resulting in a change in output phase angle.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: November 2, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William K. Burns, Catherine H. Bulmer, Arthur S. Greenblatt
  • Fabrication and phase tuning of an optical waveguide device
    Patent number: 5195163
    Abstract: The manufacture of an optical waveguide device utilizing a fast, accurate method for tuning of the output phase angle of such devices to a desired operating point. Tuning is accomplished by adjusting the accumulated phase along a waveguide arm of the device by removing optical waveguide material using laser ablation. Due to the change in waveguide geometry in the ablated region, the optical phase velocity is changed and thus the optical path length is affected in that section of waveguide, thereby resulting in a change in output phase angle.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: March 16, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William K. Burns, Catherine H. Bulmer, Arthur S. Greenblatt