Patents by Inventor Senlu Xu

Senlu Xu 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).

  • Athermal fused coupler package for optical fibers
    Patent number: 7065267
    Abstract: The present invention is directed to a fused coupler having at least two fiber optic cables that have a positive coefficient of thermal expansion. A section of each of the fiber optic cables is placed together and heated until they form a single fused section that acts as a coupler. A jacket having a negative coefficient of thermal expansion, the absolute value of which is approximately equal to the absolute value of the positive coefficient of thermal expansion of the fiber optic cables, is placed around the fused section of the fiber optic cables. The jacket can be manufactured from a ceramic material that is specifically manufactured with a negative coefficient of thermal expansion. A filler material, such as an epoxy resin, is inserted in a gap between the jacket and the fused sections of the fiber optic cables such that the gap is filled in.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: June 20, 2006
    Assignee: Finisar Corporation
    Inventors: Johnny Zhong, Steve Wang, Senlu Xu
  • Athermal fused coupler package for optical fibers
    Publication number: 20050152647
    Abstract: The present invention is directed to a fused coupler having at least two fiber optic cables that have a positive coefficient of thermal expansion. A section of each of the fiber optic cables is placed together and heated until they form a single fused section that acts as a coupler. A jacket having a negative coefficient of thermal expansion, the absolute value of which is approximately equal to the absolute value of the positive coefficient of thermal expansion of the fiber optic cables, is placed around the fused section of the fiber optic cables. The jacket can be manufactured from a ceramic material that is specifically manufactured with a negative coefficient of thermal expansion. A filler material, such as an epoxy resin, is inserted in a gap between the jacket and the fused sections of the fiber optic cables such that the gap is filled in.
    Type: Application
    Filed: November 13, 2003
    Publication date: July 14, 2005
    Inventors: Johnny Zhong, Steve Wang, Senlu Xu
  • Double-tube fiber coupler package
    Patent number: 6788852
    Abstract: Coupler packages for providing protection against the elements for fused fiber couplings. The coupler package has an inner and outer cylinder for providing additional buffering against vibration, temperature expansion, corrosion, and water penetration. The double tube structure increases the penetration length for water, while the seals decrease the cross section for water penetration.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: September 7, 2004
    Assignee: Finisar Corporation
    Inventors: Senlu Xu, Steve Wang, Johnny Zhong