Patents by Inventor Eskil Bendz

Eskil Bendz 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).

  • Patent number: 7279109
    Abstract: The present invention relates to a photonic device including a first device comprising a first set of layers, including at least a first waveguide layer, arranged in a mesa structure, and a second set of layers, including at least a second waveguide layer, formed in a second device region coupled to said first device in a light transmission direction. A cladding layer is arranged on top of the mesa structure, the second device region and the surrounding semiconductor material. A contact layer is arranged on top of the cladding layer, and a first and a second metal contact is arranged on top of the contact layer. The first set of layers, the cladding and contact layers are shaped in etching processes to remove adjacent arranged material. An insulating material is applied around the not etched cladding and contact layer. The invention also relates to a manufacturing method.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: October 9, 2007
    Assignee: Finisar Corporation
    Inventors: Bj{hacek over (o)}rn Stoltz, Eskil Bendz
  • Patent number: 7273565
    Abstract: The present invention relates to a photonic device having a first set of layers (22) including at least a first waveguide layer (3) arranged in a waveguide mesa (61). A cladding layer (7) is arranged on top of the waveguide mesa (61) and surrounding semiconductor material (1). A contact layer (8) is arranged on top of the cladding layer (7), and a metal contact (9, 80) is arranged on top of the contact layer (8). The cladding (7) and contact (8) layer are shaped in an etching process to have a mesa structure at least above the waveguide mesa (61). An insulating material (25, 82) is also applied around the mesa structure. Optionally a second photonic device having a second set or layers (31) including at least a second waveguide layer (33), may be coupled to the first photonic device in a light transmission direction thereof. The invention also relates to a method for manufacturing, the photonic device.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: September 25, 2007
    Assignee: Finisar Corporation
    Inventors: Bj{hacek over (o)}rn Stoltz, Eskil Bendz
  • Publication number: 20050213911
    Abstract: The present invention relates to a photonic device having a first set of layers (22) including at least a first waveguide layer (3) arranged in a waveguide mesa (61). A cladding layer (7) is arranged on top of the waveguide mesa (61) and surrounding semiconductor material (1). A contact layer (8) is arranged on top of the cladding layer (7), and a metal contact (9, 80) is arranged on top of the contact layer (8). The cladding (7) and contact (8) layer are shaped in an etching process to have a mesa structure at least above the waveguide mesa (61). An insulating material (25, 82) is also applied around the mesa structure. Optionally a second photonic device having a second set or layers (31) including at least a second waveguide layer (33), may be coupled to the first photonic device in a light transmission direction thereof. The invention also relates to a method for manufacturing, the photonic device.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 29, 2005
    Inventors: Bjorn Stoltz, Eskil Bendz
  • Publication number: 20050202679
    Abstract: The present invention relates to a photonic device including a first device comprising a first set of layers, including at least a first waveguide layer, arranged in a mesa structure, and a second set of layers, including at least a second waveguide layer, formed in a second device region coupled to said first device in a light transmission direction. A cladding layer is arranged on top of the mesa structure, the second device region and the surrounding semiconductor material. A contact layer is arranged on top of the cladding layer, and a first and a second metal contact is arranged on top of the contact layer. The first set of layers, the cladding and contact layers are shaped in etching processes to remove adjacent arranged material. An insulating material is applied around the not etched cladding and contact layer. The invention also relates to a manufacturing method.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 15, 2005
    Inventors: Bjorn Stoltz, Eskil Bendz
  • Patent number: 6274398
    Abstract: The present invention relates to a method for manufacturing a plurality of semiconductor photonic integrated circuit comprising at least a laser and a modulator connected optically to one another. Each laser and modulator has a waveguide layer being implemented on a single substrate, where said modulator is formed by use of a selective area growth technique. By providing modulator masking parts with selectable width to compensate a difference in band-gap energy in the waveguide layer between the laser and the modulator a approximate uniform difference in band-gap energy between the optically connected laser and modulator may be obtained.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 14, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Eskil Bendz, Lennart Lundqvist