Patents by Inventor Jens Bethge

Jens Bethge 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).

  • Compact coherent high brightness light source for the mid-IR and far IR
    Patent number: 8861555
    Abstract: Compact laser systems are disclosed which include ultrafast laser sources in combination with nonlinear crystals or waveguides. In some implementations fiber based mid-IR sources producing very short pulses and/or mid-IR sources based on a mode locked fiber lasers are utilized. A difference frequency generator receives outputs from the ultrafast sources, and generates an output including a difference frequency. The output power from the difference frequency generator can further be enhanced via the implementation of large core dispersion shifted fibers. Exemplary applications of the compact, high brightness mid-IR light sources include medical applications, spectroscopy, ranging, sensing and metrology.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 14, 2014
    Assignee: IMRA America, Inc.
    Inventors: Martin E. Fermann, Jens Bethge, Ingmar Hartl