Patents by Inventor Chin-Lan Liao

Chin-Lan Liao 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).

  • Compact optical circulator with three ports
    Patent number: 6476967
    Abstract: The invention provides a compact optical circulator with three ports positioning between a dual-core collimator and a single-core collimator. The inventive circulator has a propagation director to couple a light from the dual-core collimator to one port of the circulator and another light form the other port of the circulator to the dual-core collimator. The invention further provides a compact optical circulator with three ports having a reflective compensator. The reflective compensator compensates the optical path length of two polarized beams. Furthermore, the invention eliminates the polarization mode dispersion by utilizing a reflective compensator. As well, the inventive circulator forgoes use of the reciprocal polarizing-rotating unit, thus reducing production costs.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: November 5, 2002
    Assignee: Industrial Technology Research Institute
    Inventors: Chieh Hu, Chen-Bin Huang, Chin-Lan Liao
  • COMPACT OPTICAL CIRCULATOR WITH THREE PORTS
    Publication number: 20020141034
    Abstract: The invention provides a compact optical circulator with three ports positioning between a dual-core collimator and a single-core collimator. The inventive circulator has a propagation director to couple a light from the dual-core collimator to one port of the circulator and another light form the other port of the circulator to the dual-core collimator. The invention further provides a compact optical circulator with three ports having a reflective compensator. The reflective compensator compensates the optical path length of two polarized beams. Furthermore, the invention eliminates the polarization mode dispersion by utilizing a reflective compensator. As well, the inventive circulator forgoes use of the reciprocal polarizing-rotating unit, thus reducing production costs.
    Type: Application
    Filed: November 1, 2001
    Publication date: October 3, 2002
    Inventors: Chieh Hu, Chen-Bin Huang, Chin-Lan Liao