Patents by Inventor Philipp H. Gerlach

Philipp H. Gerlach 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).

  • Vertical cavity surface emitting laser with improved mode-selectivity
    Patent number: 8355417
    Abstract: It is an object of the invention to provide a VCSEL having both a high beam quality or a low M2-factor, respectively, and a reduced mirror thickness which improves the heat dissipation due to the reduced thickness and the production cost. It is suggested to employ a Bragg-reflector in combination with a metal reflector terminating the distal side of the Bragg-reflector as seen from the laser cavity, wherein the metal reflector layer is localized at the center around the optical axis.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: January 15, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Philipp H. Gerlach, Michael Miller
  • VERTICAL CAVITY SURFACE EMITTING LASER WITH IMPROVED MODE-SELECTIVITY
    Publication number: 20110188531
    Abstract: It is an object of the invention to provide a VCSEL having both a high beam quality or a low M2-factor, respectively, and a reduced mirror thickness which improves the heat dissipation due to the reduced thickness and the production cost. It is suggested to employ a Bragg-reflector in combination with a metal reflector terminating the distal side of the Bragg-reflector as seen from the laser cavity, wherein the metal reflector layer is localised at the centre around the optical axis.
    Type: Application
    Filed: October 7, 2009
    Publication date: August 4, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Philipp H. Gerlach, Michael Miller