Patents by Inventor Rüdiger Von Elm

Rüdiger Von Elm 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).

  • Publication number: 20120057608
    Abstract: A two-resonator laser arrangement for provides visible-wavelength radiation by sum-frequency mixing two different wavelengths of radiation circulating in the resonators in an optically nonlinear crystal located in the resonators. One of the resonators includes a solid-state gain-medium providing of one the two wavelengths and the other resonator includes a semiconductor gain-medium providing the other of the two wavelengths. A very short excited-state lifetime of the semiconductor gain-medium provides that noise and instability commonly encountered in the output of prior-art intra-resonator frequency-converted lasers is substantially reduced.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 8, 2012
    Applicant: Coherent GmbH
    Inventors: Wolf Seelert, Rüdiger Von Elm