Patents by Inventor Lennart Per Olof Lundqvist

Lennart Per Olof Lundqvist 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: 10790568
    Abstract: A carrier layout comprising a substrate comprising a ground plane layer and a coplanar waveguide interconnect disposed onto the substrate. The coplanar waveguide interconnect comprises a pair of coplanar conductors and a central conductor disposed between the pair of coplanar conductors. The coplanar conductors of the pair are electrically connected to each other by at least one conducting island that is isolated from the ground plane layer. The present invention also provides an interconnect structure for coupling an electronic unit to an optical device disposed on a substrate having a ground plane layer, the interconnect structure comprising a pair of coplanar conductors and a central conductor disposed between the pair of coplanar conductors. The conductors of the pair are electrically connected by at least one conducting island that is isolated from the ground plane layer.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 29, 2020
    Assignee: II-VI Delaware Inc.
    Inventors: Andrei Kaikkonen, Robert Monroe Smith, Lennart Per Olof Lundqvist, Lars-Goete Svenson, Marek Grzegorz Chacinski
  • Patent number: 10433447
    Abstract: An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. The interconnect structure connects the electronic unit and the optical unit, and includes an electrically conducting substrate and a pair of transmission leads connecting electronic unit and the optical unit. The pair of transmission leads includes a signal lead and a ground lead having lower impedance than the signal lead.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: October 1, 2019
    Assignee: Finisar Corporation
    Inventors: Andrei Kaikkonen, Lennart Per Olof Lundqvist, Lars-Goete Svensson, Peter Lindberg
  • Publication number: 20190140335
    Abstract: A carrier layout comprising a substrate comprising a ground plane layer and a coplanar waveguide interconnect disposed onto the substrate. The coplanar waveguide interconnect comprises a pair of coplanar conductors and a central conductor disposed between the pair of coplanar conductors. The coplanar conductors of the pair are electrically connected to each other by at least one conducting island that is isolated from the ground plane layer. The present invention also provides an interconnect structure for coupling an electronic unit to an optical device disposed on a substrate having a ground plane layer, the interconnect structure comprising a pair of coplanar conductors and a central conductor disposed between the pair of coplanar conductors. The conductors of the pair are electrically connected by at least one conducting island that is isolated from the ground plane layer.
    Type: Application
    Filed: March 15, 2017
    Publication date: May 9, 2019
    Inventors: Andrei KAIKKONEN, Robert Monroe SMITH, Lennart Per Olof LUNDQVIST, Lars-Goete SVENSON, Marek Grzegorz CHACINSKI
  • Patent number: 10141715
    Abstract: The present invention relates to an apparatus for damping arid monitoring emissions from a light emitting device, particularly a vertical cavity surface emitting laser (VCSEL), comprising: a semi transparent substrate, preferably glass; a light emitting device for generating light emission; a damping layer deposited on a surface of the substrate; and a pair of electrodes, each of which being in direct contact with the damping layer. The damping layer is adapted to decrease the power level of the light emission of the light emitting device by absorption, to a desired level, for instance, to a level that meets eye safety limits. In addition, the damping layer is photosensitive to the light emission of the light emitting device, thereby allowing the pair of electrodes to output an electric signal corresponding to the power level of the light emission of the light emitting device.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: November 27, 2018
    Assignee: Finisar Corporation
    Inventors: Marek Grzegorz Chacinski, Nicolae Pantazi Chitica, Hans Magnus Emil Andersson, Lennart Per Olof Lundqvist, Andrei Kaikkonen
  • Patent number: 9998234
    Abstract: An optical receiver is disclosed having a dielectric non-conductive substrate. A ground plane is positioned on the dielectric non-conductive substrate. An optical signal converting photodiode is also positioned on the dielectric non-conductive substrate, and has an optical signal receiver and an electrical signal output. An electrical signal amplifier is provided having an input connected to the electrical signal output of the optical signal converting photodiode. A first opening is positioned in the ground plane and surrounds the optical signal converting photodiode. The first opening has a resonance frequency higher than a fundamental frequency such that crosstalk is reducible at the input of the electrical signal amplifier.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 12, 2018
    Assignee: FINISAR CORPORATION
    Inventors: Andrei Kaikkonen, Lennart Per Olof Lundqvist, Lars-Goete Svensson, Peter Lindberg
  • Publication number: 20180124942
    Abstract: An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. The interconnect structure connects the electronic unit and the optical unit, and includes an electrically conducting substrate and a pair of transmission leads connecting electronic unit and the optical unit. The pair of transmission leads includes a signal lead and a ground lead having lower impedance than the signal lead.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 3, 2018
    Inventors: Andrei Kaikkonen, Lennart Per Olof Lundqvist, Lars-Goete Svensson, Peter Lindberg
  • Patent number: 9814153
    Abstract: An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. The interconnect structure connects the electronic unit and the optical unit, and includes an electrically conducting substrate and a pair of transmission leads connecting electronic unit and the optical unit. The pair of transmission leads includes a signal lead and a ground lead having lower impedance than the signal lead.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: November 7, 2017
    Assignee: FINISAR CORPORATION
    Inventors: Andrei Kaikkonen, Lennart Per Olof Lundqvist, Lars-Goete Svensson, Peter Lindberg
  • Publication number: 20170264077
    Abstract: The present invention relates to an apparatus for damping arid monitoring emissions from a light emitting device, particularly a vertical cavity surface emitting laser (VCSEL), comprising: a semi transparent substrate, preferably glass; a light emitting device for generating light emission; a damping layer deposited on a surface of the substrate; and a pair of electrodes, each of which being in direct contact with the damping layer. The damping layer is adapted to decrease the power level of the light emission of the light emitting device by absorption, to a desired level, for instance, to a level that meets eye safety limits. In addition, the damping layer is photosensitive to the light emission of the light emitting device, thereby allowing the pair of electrodes to output an electric signal corresponding to the power level of the light emission of the light emitting device.
    Type: Application
    Filed: January 20, 2017
    Publication date: September 14, 2017
    Inventors: Marek Grzegorz Chacinski, Nicolae Pantazi Chitica, Hans Magnus Emil Andersson, Lennart Per Olof Lundqvist, Andrei Kaikkonen
  • Publication number: 20150296648
    Abstract: An optoelectronic module is provide and includes an electronic unit, an optical unit, and an interconnect structure. The electronic unit is capable of outputting and/or receiving electric signals, while the optical unit is capable of converting the electric signals into optical signals. The interconnect structure connects the electronic unit and the optical unit, and includes an electrically conducting substrate and a pair of transmission leads connecting electronic unit and the optical unit. The pair of transmission leads includes a signal lead and a ground lead having lower impedance than the signal lead.
    Type: Application
    Filed: June 11, 2015
    Publication date: October 15, 2015
    Applicant: Tyco Electronics Svenska Holdings AB
    Inventors: Andrei Kaikkonen, Lennart Per Olof Lundqvist, Lars-Goete Svenson, Peter Lindberg
  • Publication number: 20140255042
    Abstract: An optical receiver is disclosed having a dielectric non-conductive substrate. A ground plane is positioned on the dielectric non-conductive substrate. An optical signal converting photodiode is also positioned on the dielectric non-conductive substrate, and has an optical signal receiver and an electrical signal output. An electrical signal amplifier is provided having an input connected to the electrical signal output of the optical signal converting photodiode. A first opening is positioned in the ground plane and surrounds the optical signal converting photodiode. The first opening has a resonance frequency higher than a fundamental frequency such that crosstalk is reducible at the input of the electrical signal amplifier.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: TYCO ELECTRONICS SVENSKA HOLDINGS AB
    Inventors: Andrei Kaikkonen, Lennart Per Olof Lundqvist, Lars-Goete Svensson, Peter Lindberg
  • Publication number: 20110089438
    Abstract: Provided is a method of providing an opto-electrical assembly. The method comprises attaching a second electrical element to a carrier using a second attachment region at a second attaching temperature. The second attaching temperature is associated with the melting temperature of the second attachment region, such as the melting temperature of solder or the like. The carrier already comprises a first opto-electrical element having been attached to the carrier using a first attachment region at a first attaching temperature, whereby the first attaching temperature is associated with the melting temperature of the first attachment region. The method is provided such that the second attachment region has a lower melting temperature than the first attachment region such that the second attaching temperature is lower than the first attaching temperature.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Odd Robert Steijer, Hans Magnus Emil Andersson, Asa Christina Johansson, Lennart Per Olof Lundqvist, Sylvia Anna-Karin Ek, Maria Elisabeth Källén