Patents by Inventor Ping-Hui Sophia Yeh

Ping-Hui Sophia Yeh 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).

  • Transition metal doped fiber amplifier
    Patent number: 7333263
    Abstract: An optical amplifier includes an optical fiber having a core doped with transition metal ions, and at least one glass cladding enclosing the core. By using the fiber, the optical amplifier of the invention has a gain bandwidth of more than 300 nm including 1300-1600 nm band in low-loss optical communication.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: February 19, 2008
    Assignee: National Sun Yat-Sen University
    Inventors: Sheng-Lung Huang, Chia-Yao Lo, Kwang-Yao Huang, Jian-Cheng Chen, Chiang-Yuan Chuang, Chien-Chih Lai, Yen-Sheng Lin, Ping-Hui Sophia Yeh