Patents by Inventor Junhua Lu

Junhua Lu 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).

  • Prism-nonlinear optical crystal coupler for laser frequency conversion
    Patent number: 6859305
    Abstract: The present invention relates to prism-nonlinear optical crystal couplers for frequency conversion, including M pieces of nonlinear optical crystal and one coupling prism stuck to the incident surface or/and exit surface of the crystal by optical stick or a matching liquid. The coupling prisms are the same triangle prisms of right triangle prism, equilateral triangle prism, or inequlateral triangle prism, or are different triangle prisms. It is hopeful to obtain frequency 6th harmonic output.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: February 22, 2005
    Assignee: Technical Institute of Physics and Chemistry
    Inventors: Chuangtian Chen, Zuyan Xu, Junhua Lu, Guiling Wang
  • Prism-nonlinear optical crystal coupler for laser frequency conversion
    Publication number: 20020154384
    Abstract: The present invention relates to prism-nonlinear optical crystal couplers for frequency conversion, including M pieces of nonlinear optical crystal and one coupling prism stuck to the incident surface or/and exit surface of the crystal by optical stick or a matching liquid. The coupling prisms are the same triangle prisms of right triangle prism, equilateral triangle prism, or inequilateral triangle prism, or are different triangle prisms. It is hopeful to obtain frequency 6th harmonic output.
    Type: Application
    Filed: April 18, 2002
    Publication date: October 24, 2002
    Inventors: Chuangtian Chen, Zuyan Xu, Junhua Lu, Guiling Wang