Patents by Inventor Ravinder Kumar Jain

Ravinder Kumar Jain 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).

  • Optical fiber Raman oscillator
    Patent number: 4063106
    Abstract: A tunable radiation source employing the stimulated Raman-scattering process is disclosed. The source generates several orders of Stokes radiation in an optical-fiber oscillator cavity, which Stokes radiation may be independently tuned by incorporating separate tuning elements for the several Stokes orders. Several different arrangements of fiber and tuning elements are disclosed.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: December 13, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Arthur Ashkin, Ravinder Kumar Jain, Chinlon Lin, Rogers Hall Stolen
  • Time dispersion tuned Raman oscillator
    Patent number: 4039851
    Abstract: There is disclosed a time-dispersion tuned Raman oscillator which makes use of the frequency-dependent transit time of Stokes radiation through a long optical fiber. Time-dispersion tuning is effected by synchronizing Stokes radiation of the desired frequency with a pump pulse. This synchronization may be accomplished either by adjusting the delay of the feedback pulse relative to a pump pulse or by adjusting the repetition rate of the pulsed pump laser.
    Type: Grant
    Filed: January 4, 1977
    Date of Patent: August 2, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Ravinder Kumar Jain, Chinlon Lin, Rogers Hall Stolen