Patents by Inventor Frederick Stoeckel

Frederick Stoeckel 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).

  • Surface-emitting semiconductor laser
    Patent number: 6658034
    Abstract: A laser suitable for intra-cavity laser absorption spectroscopy and for telecommunication system comprises a Bragg mirror, a multiple quantum well active region and an anti-reflective coating together with a second mirror spaced from the coating to define an external cavity, the free spectral range of the sub-cavity defined by the coating and the active region being less than two times the bandwidth of the coating and the bandwidth of the Bragg mirror being at least as great as the free spectral range of the sub-cavity.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: December 2, 2003
    Assignee: Picarro, Inc.
    Inventors: Arnaud Garnache, Alexandre Katchanov, Frederick Stoeckel
  • Surface-emitting semiconductor laser
    Publication number: 20020071463
    Abstract: A laser suitable for intra-cavity laser absorption spectroscopy and for telecommunication system comprises a Bragg mirror, a multiple quantum well active region and an anti-reflective coating together with a second mirror spaced from the coating to define an external cavity, the free spectral range of the sub-cavity defined by the coating and the active region being less than two times the bandwidth of the coating and the bandwidth of the Bragg mirror being at least as great as the free spectral range of the sub-cavity.
    Type: Application
    Filed: December 13, 2000
    Publication date: June 13, 2002
    Inventors: Arnaud Garnache, Alexandre Katchanov, Frederick Stoeckel