Patents by Inventor Tian Lu

Tian Lu 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: 6009111
    Abstract: A robust method of stabilizing a diode laser frequency to an atomic transition is provided. The method employs Zeeman shift to generate an anti-symmetric signal about a Doppler-broadened atomic resonance, and, therefore, offers a large recapture range as well as high stability. The frequency of a 780 nm diode laser, stabilized to such a signal in Rb, drifts less than 0.5 MHz.sub.pk-pk (one part in 10.sup.9) in thirty-eight hours. This tunable frequency lock may be inexpensively constructed, requires little laser power, rarely loses lock, and may be extended to other wavelengths by using different atomic species.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: December 28, 1999
    Assignee: University Technology Corporation
    Inventors: Kristan L. Corwin, Zheng-Tian Lu, Carter F. Hand, Ryan J. Epstein, Carl E. Wieman