Patents by Inventor Jan-Willem J. Pieterse

Jan-Willem J. Pieterse 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).

  • Synchronously pumped sub-picosecond optical parametric oscillator
    Patent number: 5847861
    Abstract: A synchronously pumped optical parametric oscillator (OPO) using a temperature tuned 90 degree phase matched LBO crystal is disclosed which provides a broad selection of output wavelengths. In one embodiment a Ti:sapphire pump source having a cavity length matched to the OPO cavity length pumps a cavity with an LBO crystal located at the cavity waist of the cavity mode. Resources are included to, tune the OPO to a desired wavelength, repetitively scan through a series of desired wavelengths, and adjust the cavity length to obtain a synchronous pumping condition and diagnose a wavelength at which the OPO is operating. A frequency doubled beam in the LBO crystal is generated as a substantially collinear alignment beam.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: December 8, 1998
    Inventors: James D. Kafka, Michael L. Watts, Jan-Willem J. Pieterse, Kevin K. Holsinger
  • Synchronously pumped sub-picosecond optical parametric oscillator
    Patent number: 5365366
    Abstract: A synchronously pumped optical parametric oscillator (OPO) using a temperature-tuned 90.degree. phase matched LBO crystal is disclosed which provides a broad selection of output wavelengths. A Ti:Sapphire pump source having a cavity length matched to the OPO cavity length pumps a cavity with an LBO crystal located at the cavity waist of the cavity mode.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: November 15, 1994
    Assignee: Spectra-Physics Lasers, Inc.
    Inventors: James D. Kafka, Michael L. Watts, Jan-Willem J. Pieterse, Kevin K. Holsinger