Patents by Inventor Dongsheng Han

Dongsheng Han 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: 7933521
    Abstract: An apparatus for use in an optical transceiver module that incorporates an integrated multiplexer/demultiplexer for high speed data transfer applications. One example embodiment includes a transmissive block arranged to interface with a transmit optical port, a receive optical port, and a plurality of optical subassemblies. The transmit optical port may transmit a first multiplexed optical signal and the receive optical port may receive a second multiplexed optical signal. Filters may be positioned between the transmissive block and one or more of the optical subassemblies to transmit signals at predetermined wavelengths while reflecting other signals incident thereon.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: April 26, 2011
    Assignee: Finisar Corporation
    Inventors: Zhenli Wen, Kevin Zhang, Dongsheng Han, Fahua Lan
  • Publication number: 20080292317
    Abstract: An apparatus for use in an optical transceiver module that incorporates an integrated multiplexer/demultiplexer for high speed data transfer applications. One example embodiment includes a transmissive block arranged to interface with a transmit optical port, a receive optical port, and a plurality of optical subassemblies. The transmit optical port may transmit a first multiplexed optical signal and the receive optical port may receive a second multiplexed optical signal. Filters may be positioned between the transmissive block and one or more of the optical subassemblies to transmit signals at predetermined wavelengths while reflecting other signals incident thereon.
    Type: Application
    Filed: November 21, 2007
    Publication date: November 27, 2008
    Applicant: Finisar Corporation
    Inventors: Zhenli Wen, Kevin Zhang, Dongsheng Han, Fahua Lan
  • Publication number: 20080118243
    Abstract: Spatially-efficient optical multiplexers and optical demultiplexers include elements interrelating along orthogonal axes. A transmission block of extreme thinness has highly reflective coatings on opposed parallel surfaces. Lasers of multiplexer are on one side of transmission block with transmission axes perpendicular to transmission block surface. An associated multiplexed signal transmitting port on opposite side of transmission block has receiving axis parallel to transmission block surface on that side. Detectors of demultiplexer are on one side of transmission block with reception axes perpendicular to transmission block surface. An associated multiplexed signal receiving port on opposite side of transmission block has receiving axis parallel to transmission block surface on that side. A unitary structure performs both optical multiplexer functions and optical demultiplexer function with a single thin transmission block. Related optical signal processing methods are included.
    Type: Application
    Filed: April 24, 2007
    Publication date: May 22, 2008
    Inventors: Zhenli Wen, Kevin Dapeng Zhang, Dongsheng Han, Fahua Lan
  • Patent number: 7366371
    Abstract: Spatially-efficient optical multiplexers and optical demultiplexers include elements interrelating along orthogonal axes. A transmission block of extreme thinness has highly reflective coatings on opposed parallel surfaces. Lasers of multiplexer are on one side of transmission block with transmission axes perpendicular to transmission block surface. An associated multiplexed signal transmitting port on opposite side of transmission block has receiving axis parallel to transmission block surface on that side. Detectors of demultiplexer are on one side of transmission block with reception axes perpendicular to transmission block surface. An associated multiplexed signal receiving port on opposite side of transmission block has receiving axis parallel to transmission block surface on that side. A unitary structure performs both optical multiplexer functions and optical demultiplexer function with a single thin transmission block. Related optical signal processing methods are included.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: April 29, 2008
    Assignee: Finisar Corporation
    Inventors: Zhenli Wen, Kevin Dapeng Zhang, Dongsheng Han, Fahua Lan