Patents by Inventor Robin K. Huang

Robin K. Huang 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).

  • High efficiency slab-coupled optical waveguide laser and amplifier
    Patent number: 8571080
    Abstract: A slab-coupled optical waveguide laser (SCOWL) is provided that includes an upper and lower waveguide region for guiding a laser mode. The upper waveguide region is positioned in the interior regions of the SCOWL. The lower waveguide region also guides the laser mode. The lower waveguide region is positioned in an area underneath the upper waveguide region. An active region is positioned between the upper waveguide region and the lower waveguide region. The active region is arranged so etching into the SCOWL is permitted to define one or more ridge structures leaving the active region unetched.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: October 29, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Robin K. Huang, Reuel P. Swint, Joseph P. Donnelly
  • Very large mode slab-coupled optical waveguide laser and amplifier
    Patent number: 8451874
    Abstract: A very large mode (VLM) slab-coupled optical waveguide laser (SCOWL) is provided that includes an upper waveguide region as part of the waveguide for guiding the laser mode. The upper waveguide region is positioned in the interior regions of the VLM SCOWL. A lower waveguide region also is part of the waveguide that guides the laser mode. The lower waveguide region is positioned in an area underneath the upper waveguide region. An active region is positioned between the upper waveguide region and the lower waveguide region. The active region is arranged so etching into the VLM SCOWL is permitted to define one or more ridge structures leaving the active region unetched. One or more mode control barrier layers are positioned between said upper waveguide region and said lower waveguide region. The one or more mode control barrier layers control the fundamental mode profile and prevent mode collapse of the laser mode. The mode control barrier layers also block carrier leakage from the active region.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: May 28, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Robin K. Huang, Joseph P. Donnelly
  • VERY LARGE MODE SLAB-COUPLED OPTICAL WAVEGUIDE LASER AND AMPLIFIER
    Publication number: 20110150010
    Abstract: A very large mode (VLM) slab-coupled optical waveguide laser (SCOWL) is provided that includes an upper waveguide region as part of the waveguide for guiding the laser mode. The upper waveguide region is positioned in the interior regions of the VLM SCOWL. A lower waveguide region also is part of the waveguide that guides the laser mode. The lower waveguide region is positioned in an area underneath the upper waveguide region. An active region is positioned between the upper waveguide region and the lower waveguide region. The active region is arranged so etching into the VLM SCOWL is permitted to define one or more ridge structures leaving the active region unetched. One or more mode control barrier layers are positioned between said upper waveguide region and said lower waveguide region. The one or more mode control barrier layers control the fundamental mode profile and prevent mode collapse of the laser mode. The mode control barrier layers also block carrier leakage from the active region.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 23, 2011
    Inventors: Robin K. Huang, Joseph P. Donnelly
  • HIGH EFFICIENCY SLAB-COUPLED OPTICAL WAVEGUIDE LASER AND AMPLIFIER
    Publication number: 20110128982
    Abstract: A slab-coupled optical waveguide laser (SCOWL) is provided that includes an upper and lower waveguide region for guiding a laser mode. The upper waveguide region is positioned in the interior regions of the SCOWL. The lower waveguide region also guides the laser mode. The lower waveguide region is positioned in an area underneath the upper waveguide region. An active region is positioned between the upper waveguide region and the lower waveguide region. The active region is arranged so etching into the SCOWL is permitted to define one or more ridge structures leaving the active region unetched.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 2, 2011
    Inventors: Robin K. Huang, Joseph P. Donnelly, Reuel B. Swint