Patents by Inventor Daniel P. Dapkus

Daniel P. Dapkus 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).

  • Robust, compact, field-able tunable integrated photonic device
    Patent number: 10411436
    Abstract: A tunable laser device includes a laser structure and a plurality of individually addressable, separated contact stripes disposed on the laser structure. The laser structure includes a substrate, an active portion disposed on the substrate, and a chirped distributed feedback (DFB) grating disposed on the active portion. The active portion includes at least top and bottom contact layers and a gain medium.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: September 10, 2019
    Inventors: Steven R. J. Brueck, Sanjay Krishna, Daniel P. Dapkus
  • ROBUST, COMPACT, FIELD-ABLE TUNABLE INTEGRATED PHOTONIC DEVICE
    Publication number: 20180366904
    Abstract: A tunable laser device includes a laser structure and a plurality of individually addressable, separated contact stripes disposed on the laser structure. The laser structure includes a substrate, an active portion disposed on the substrate, and a chirped distributed feedback (DFB) grating disposed on the active portion. The active portion includes at least top and bottom contact layers and a gain medium.
    Type: Application
    Filed: May 6, 2016
    Publication date: December 20, 2018
    Inventors: Steven R.J. Brueck, Sanjay Krishna, Daniel P. Dapkus