Patents by Inventor G?uuml;nther Trnkle

G?uuml;nther Trnkle 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).

  • Semiconductor laser
    Publication number: 20040047378
    Abstract: A semiconductor laser has an antiresonant waveguide (10), which is formed by a layer sequence applied to a substrate (1). The layer sequence has outer waveguide regions (2, 8), reflection layers (3, 7), and a waveguide core (11) with an active layer (5). With this structure, semiconductor lasers with only slight vertical beam divergence and with a large beam cross section can be produced.
    Type: Application
    Filed: March 20, 2003
    Publication date: March 11, 2004
    Inventors: G?ouml;tz Erbert, G?uuml;nther Trnkle, Hans Wenzel