Patents by Inventor Chung-Liang Tang

Chung-Liang Tang 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).

  • Tunable laser systems and method
    Patent number: 3983507
    Abstract: A tunable laser includes a birefringent tuning crystal placed in the laser cavity. An electrical signal is applied to the tuning crystal to establish an electrical tuning field within the crystal, and a desired laser tuning rate as a function of the applied electrical signal is established by rotating the optic axis of the crystal through a selected small acute angle from the direction of the laser light path through the crystal. The tunable laser is included in tunable laser systems for derivative spectroscopy and transient spectroscopy.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: September 28, 1976
    Assignee: Research Corporation
    Inventors: Chung-Liang Tang, John M. Telle