Patents by Inventor Steven P. McGarry

Steven P. McGarry 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).

  • Patent number: 6697554
    Abstract: An adaptive optical waveguide router in which routing paths may be dynamically created by the use of a scanning system. The optical router interconnects at least one optical input to a at least optical output. The optical waveguide layer employed is substantially comprised of a photosensitive material which has a change in index of refraction at one optical wavelength when exposed to a different optical wavelength and which, in some way, may be restored to it's original state. One such material is Bacteriorhodopsin which shows a photocycle in the visible region of the optical spectrum. The scanning system, in response to routing information, traces a routing path(s) between an input(s) and a selected output(s) which alters the index of refraction in the path(s) traced in the photorefractive material. An optical input signal then propagates along the traced path between the selected input(s) and the selected output(s).
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: February 24, 2004
    Assignee: Nortel Networks Limited
    Inventors: Steven P. McGarry, Charles D. MacPherson
  • Publication number: 20020136497
    Abstract: An adaptive optical waveguide router in which routing paths may be dynamically created by the use of a scanning system. The optical router interconnects at least one optical input to a at least optical output. The optical waveguide layer employed is substantially comprised of a photosensitive material which has a change in index of refraction at one optical wavelength when exposed to a different optical wavelength and which, in some way, may be restored to it's original state. One such material is Bacteriorhodopsin which shows a photocycle in the visible region of the optical spectrum. The scanning system, in response to routing information, traces a routing path(s) between an input(s) and a selected output(s) which alters the index of refraction in the path(s) traced in the photorefractive material. An optical input signal then propagates along the traced path between the selected input(s) and the selected output(s).
    Type: Application
    Filed: May 20, 2002
    Publication date: September 26, 2002
    Inventors: Steven P. McGarry, Charles D. MacPherson
  • Patent number: 6438295
    Abstract: An adaptive optical waveguide router in which routing paths may be dynamically created by the use of a scanning system. The optical router interconnects at least one optical input to a at least optical output. The optical waveguide layer employed is substantially comprised of a photosensitive material which has a change in index of refraction at one optical wavelength when exposed to a different optical wavelength and which, in some way, may be restored to it's original state. One such material is Bacteriorhodopsin which shows a photocycle in the visible region of the optical spectrum. The scanning system, in response to routing information, traces a routing path(s) between an input(s) and a selected output(s) which alters the index of refraction in the path(s) traced in the photorefractive material. An optical input signal then propagates along the traced path between the selected input(s) and the selected output(s).
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: August 20, 2002
    Assignee: Nortel Networks Limited
    Inventors: Steven P. McGarry, Charles D. MacPherson
  • Patent number: D668942
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: October 16, 2012
    Inventor: Steven P. McGarry