Patents by Inventor Jay R. Ackerhalt

Jay R. Ackerhalt 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).

  • Interlocked ring intracavity raman laser method of generating raman shifted laser output
    Patent number: 4829528
    Abstract: Device for providing a train of light pulses at Raman shifted frequency comprises a first ring laser (for fundamental frequency) and a second ring laser (for Raman shifted frequency). Both ring laser intersect in a Raman laser medium which is common to the cavity of both ring lasers. The Raman cavity has output means partially transmissive at Raman frequency. Length of first and second ring laser cavities differs by .DELTA.L. Injection of a fundamental pump pulse and a small Raman seed pulse into their respective cavities results in output of a train of Stokes pulses.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: May 9, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Yehuda B. Band, Donald F. Heller, Jerzy S. Krasinski, Jay R. Ackerhalt