Patents Represented by Attorney H. Christofferson

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  • Optical coupler having improved efficiency
    Patent number: 4097117
    Abstract: The optical efficiency, with which a coupling portion of a fiber-optic can be coupled by evanescent fields to a planar optical waveguide through a phase-matching diffraction grating on the surface of the planar optical waveguide, is increased by deforming the coupling portion so that it is a negative replica of the undulating surface of the diffraction grating.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: June 27, 1978
    Assignee: RCA Corporation
    Inventors: Clyde Carl Neil, Jacob Meyer Hammer, Robert Alfred Bartolini