Patents by Inventor Walter Scrlac

Walter Scrlac 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).

  • Patent number: 5216688
    Abstract: A solid state type laser contains a laser rod (1) and at least one pumping module (2d, 2e) equipped with laser diodes (D) which is designed as a ring-shaped or partial ring-shaped module with a circumferential cooling duct (4). This geometry permits the lost heat of the laser diodes (D) to be effectively removed radially outward through the cooling duct (4), on the one hand, and through thermal conduction in the material of the module, on the other hand. The individual laser diodes are so arranged that the major axis of each rotationally non-symmetrical lobe of laser light, along which axis the main radiation power from the respective laser diode is obtained, lies in a plane substantially parallel to the longitudinal axis of the laser rod.
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: June 1, 1993
    Assignee: Adlas Gmbh & Co. KG
    Inventors: Hans-Peter Kortz, Walter Scrlac
  • Patent number: 4514848
    Abstract: The pulse duration of an iodine laser is adjusted between 400 ps and 20 ns primarily by changing the resonator length in the range of about 2 cm to about 100 cm and secondarily by the ratio of excitation energy to threshold energy of the laser. Iodine laser pulses without pre-pulse and substructure are achieved in that the gas pressure of the laser gas of the iodine laser is adapted to the resonator length in order to limit the band width of the amplification and thus the band width of the pulse to be produced. The longer are the laser pulses to be produced the lower is the pressure chosen. A prerequisite for the above results is that the excitation of the iodine laser occurs extremely rapidly. This is advantageously achieved by photo-dissociation of a perfluoroalkyl iodide as CF.sub.3 I by means of laser providing sufficiently short output pumping pulses, e.g. an excimer laser, as a KrF laser or XeCl laser or a frequency-multiplied Nd-glass or Nd-YAG laser, or a N.sub.2 laser (in combination with t-C.sub.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: April 30, 1985
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Klaus J. Witte, Ernst Fill, Walter Scrlac