Patents by Inventor Petteri Väinänen

Petteri Väinänen 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).

  • Tapered core fiber manufacturing methods
    Patent number: 9815731
    Abstract: Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 14, 2017
    Assignee: nLIGHT, Inc.
    Inventors: Joona Koponen, Laeticia Petit, Petteri Väinänen
  • Tapered core fiber manufacturing methods
    Patent number: 9484706
    Abstract: Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: November 1, 2016
    Assignee: nLIGHT, Inc.
    Inventors: Joona Koponen, Laeticia Petit, Petteri Väinänen