Patents by Inventor Lai Yin Simon Chan

Lai Yin Simon Chan 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).

  • Method and apparatus for controlling the polarization of an optical signal
    Patent number: 7177330
    Abstract: A method of controlling the state of polarization of an optical signal includes injecting the optical signal into a laser diode and matching the wavelength of the optical signal to a longitudinal mode of the laser diode. A stabilizer signal can also be injected in to the laser diode. The wavelength of the stabilizer signal is matched a first longitudinal mode of the laser diode a longitudinal mode of the laser diode to the optical signal.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: February 13, 2007
    Assignee: Hong Kong Polytechnic University
    Inventors: Ping-kong Alexander Wai, Hwa Yaw Tam, Lai Yin Simon Chan, Weng Hong Chung
  • Method and apparatus for controlling the polarization of an optical signal
    Publication number: 20040184491
    Abstract: A method of controlling the state of polarization of an optical signal includes injecting the optical signal into a laser diode and matching the wavelength of the optical signal to a longitudinal mode of the laser diode. A stabilizer signal can also be injected in to the laser diode. The wavelength of the stabilizer signal is matched a first longitudinal mode of the laser diode a longitudinal mode of the laser diode to the optical signal.
    Type: Application
    Filed: March 17, 2003
    Publication date: September 23, 2004
    Applicant: The Hong Kong Polytechnic University
    Inventors: Ping-kong Alexander Wai, Hwa Yaw Tam, Lai Yin Simon Chan, Weng Hong Chung