Patents by Inventor Wayne Lui

Wayne Lui 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).

  • Grating-based wavelength selective switch
    Patent number: 7167616
    Abstract: The present invention is a wavelength-selective optical transmission system that includes a first waveguide for transmitting a multiplexed optical signal therethrough. The system further includes a second waveguide coupled to the first waveguide wherein a least one of the first and second waveguides have a set of wavelength-selective Bragg gratings disposed near a coupling section between the first and second waveguides to reflect a reflecting optical signal back to the first waveguide and for transmitting a contra-directional optical signal and a co-directional optical signal having respectively a contra-directional selected wavelength and a co-directional selected wavelength corresponding to the Bragg gratings. One of the contra-directional and co-directional wavelengths is chosen as a designated wavelength, and the reflecting optical signal and one of the contra-directional or co-directional optical signals are outside of a predefined range surrounding the designated wavelength.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: January 23, 2007
    Assignee: Integrated Optics Communications Corp.
    Inventors: Peiching Ling, Wayne Lui, Jinliang Chen, Jianjun Zhang, Ming Xu, Yu Chen
  • Grating-based wavelength selective switch
    Publication number: 20060039647
    Abstract: The present invention is a wavelength-selective optical transmission system that includes a first waveguide for transmitting a multiplexed optical signal therethrough. The system further includes a second waveguide coupled to the first waveguide wherein a least one of the first and second waveguides have a set of wavelength-selective Bragg gratings disposed near a coupling section between the first and second waveguides to reflect a reflecting optical signal back to the first waveguide and for transmitting a contra-directional optical signal and a co-directional optical signal having respectively a contra-directional selected wavelength and a co-directional selected wavelength corresponding to the Bragg gratings. One of the contra-directional and co-directional wavelengths is chosen as a designated wavelength, and the reflecting optical signal and one of the contra-directional or co-directional optical signals are outside of a predefined range surrounding the designated wavelength.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 23, 2006
    Inventors: Peiching Ling, Wayne Lui, Jinliang Chen, Jianjun Zhang, Ming Xu, Yu Chen
  • Wavelength division multiplexing add/drop system employing optical switches and interleavers
    Publication number: 20050265720
    Abstract: An optical add/drop multiplexer (OADM) having reduced crosstalk is disclosed. The OADM uses an optical interleaver to separate channels of a wavelength division multiplexed signal into a plurality of branches. The branches then separately act on the widely spaced channels to add or drop channels. After the add/drop function is completed, the channels on the branches are recombined.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 1, 2005
    Inventors: Peiching Ling, Jianjun Zhang, Wayne Lui, Jinliang Chen, Ming Xu
  • Grating-based wavelength selective switch
    Patent number: 6876793
    Abstract: The present invention is a wavelength-selective optical transmission system that includes a first waveguide for transmitting a multiplexed optical signal therethrough. The system further includes a second waveguide coupled to the first waveguide wherein a least one of the first and second waveguides have a set of wavelength-selective Bragg gratings disposed near a coupling section between the first and second waveguides to reflect a reflecting optical signal back to the first waveguide and for transmitting a contra-directional optical signal and a co-directional optical signal having respectively a contra-directional selected wavelength and a co-directional selected wavelength corresponding to the Bragg gratings. One of the contra-directional and co-directional wavelengths is chosen as a designated wavelength, and the reflecting optical signal and one of the contra-directional or co-directional optical signals are outside of a predefined range surrounding the designated wavelength.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: April 5, 2005
    Assignee: Integrated Optics Communications Corp.
    Inventors: Peiching Ling, Wayne Lui, Jinliang Chen, Jianjun Zhang, Ming Xu, Yu Chen
  • Grating-based wavelength selective switch
    Patent number: 6801690
    Abstract: This invention discloses an optical device that includes a wavelength-selective optical transmission system. The wavelength-selective optical transmission system further includes a first waveguide for transmitting a multiplexed optical signal therethrough. The wavelength-selective optical transmission system further includes a second waveguide coupled to the first waveguide wherein a least one of the first and second waveguides having a set of wavelength-selective Bragg gratings disposed near a coupling section between the first and second waveguides. One of the first and second waveguides has an aspect ratio, i.e., a ratio of a thickness divided by a width, is no greater than 0.75.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: October 5, 2004
    Assignee: Integrated Optics Communications Corp.
    Inventors: Peiching Ling, Wayne Lui, Jinliang Chen, Jianjun Zhang, Ming Xu