Patents by Inventor Irina Veretennicoff

Irina Veretennicoff 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).

  • Enhanced polarization control and stabilization by macroscopic in-plane anisotropic strain in vertical-cavity surface-emitting lasers
    Patent number: 6785317
    Abstract: The present invention relates to vertical-cavity surface-emitting lasers (VCSELs), and more particularly to a method and apparatus for controlling and stabilization of polarization in such devices. The method for stabilizing the polarization of light generated by a VCSEL assembly comprising a light generation region of a VCSEL, the VCSEL being mechanically coupled to a mounting substrate, comprises the steps of: mechanically coupling the mounting substrate to a second substrate which is coextensive or larger in area than the mounting substrate, and applying uniaxial strain to the light generation region of the VCSEL by means of external strain applied to the mounting substrate by the second substrate or by means attached to the second substrate.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: August 31, 2004
    Assignee: Vrije Universiteit Brussels
    Inventors: Krassimir Panajotov, Hugo Thienpont, Irina Veretennicoff
  • Enhanced polarization control and stabilization by macroscopic in-plane anisotropic strain in vertical-cavity surface-emitting lasers
    Publication number: 20030075725
    Abstract: The present invention relates to vertical-cavity surface-emitting lasers (VCSELs), and more particularly to a method and apparatus for controlling and stabilization of polarization in such devices.
    Type: Application
    Filed: September 10, 2002
    Publication date: April 24, 2003
    Inventors: Krassimir Panajotov, Hugo Thienpont, Irina Veretennicoff