Patents by Inventor Petter Westbergh

Petter Westbergh 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).

  • Publication number: 20240022045
    Abstract: A vertical-cavity surface-emitting laser (VCSEL) is provided that includes a first reflector; a second reflector; and an active region disposed between the first reflector and the second reflector. The first reflector defines a first reflector characteristic dimension in a plane that is substantially perpendicular to an emission axis of the VCSEL, and the second reflector defines a second reflector characteristic dimension in a plane that is substantially perpendicular to the emission axis. The first reflector characteristic dimension is substantially equal to the second reflector characteristic dimension, which enables the VCSEL to exhibit improved heat dissipation compared to conventional VCSELs.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 18, 2024
    Inventors: Petter Westbergh, Attila Fulop
  • Publication number: 20240022046
    Abstract: Vertical-cavity surface-emitting lasers (VCSELs) and associated methods of manufacturing are provided. An example VCSEL includes a first reflector, a second reflector, and an active region disposed between the first reflector and the second reflector. The VCSEL further includes an electrical aperture defining a current confinement region configured to direct current to the active region and an optical aperture defining a medium through which light produced by the active region is emitted from the VCSEL. At least one dimension of the optical aperture of the VCSEL is formed independent of the electrical aperture of the VCSEL. In some instances, the dimension of the optical aperture is a first diameter such that the first diameter of the optical aperture is formed independent of a second diameter defined by the electrical aperture.
    Type: Application
    Filed: July 15, 2022
    Publication date: January 18, 2024
    Inventor: Petter Westbergh
  • Patent number: 10581224
    Abstract: A VCSEL may include a bottom DBR mirror and a top DBR mirror above the bottom DBR mirror. The VCSEL may include a vertical optical cavity located within a portion of the bottom and top DBR mirrors. The vertical optical cavity may be configured to emit an optical signal. The VCSEL may include a lateral feedback optical cavity located within a different portion of the bottom and the top DBR mirrors configured to receive a feedback bias signal configured to bias the lateral feedback optical cavity to adjust the optical signal. The VCSEL may include an active region formed between the bottom and the top DBR mirrors that may include an oxide layer defining an oxide aperture. The VCSEL may include an isolation implant configured to electrically isolate the vertical optical cavity from the feedback optical cavity and to create a first and a second aperture within the oxide aperture.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Finisar Corporation
    Inventor: Petter Westbergh
  • Publication number: 20190140423
    Abstract: A VCSEL may include a bottom DBR mirror and a top DBR mirror above the bottom DBR mirror. The VCSEL may include a vertical optical cavity located within a portion of the bottom and top DBR mirrors. The vertical optical cavity may be configured to emit an optical signal. The VCSEL may include a lateral feedback optical cavity located within a different portion of the bottom and the top DBR mirrors configured to receive a feedback bias signal configured to bias the lateral feedback optical cavity to adjust the optical signal. The VCSEL may include an active region formed between the bottom and the top DBR mirrors that may include an oxide layer defining an oxide aperture. The VCSEL may include an isolation implant configured to electrically isolate the vertical optical cavity from the feedback optical cavity and to create a first and a second aperture within the oxide aperture.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 9, 2019
    Inventor: Petter Westbergh