Patents by Inventor Renyuan Gao

Renyuan Gao 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).

  • Publication number: 20020186458
    Abstract: A controllable optical amplifier module is disclosed. The controllable optical amplifier module includes a signal line. The signal line includes an input for receiving an input signal, an output for discharging an amplified signal such that the output is optically connected to the input, a gain medium optically disposed between the input and the output, and a first tap for generating a first tapped signal such that the first tap is optically disposed between the input and the output. The controllable optical amplifier module also includes at least one pump laser having a laser output optically connected to the gain medium and an ability to adjustably alter the intensity of the amplified signal. A method of adjustably amplifying an optical signal is also disclosed.
    Type: Application
    Filed: June 8, 2001
    Publication date: December 12, 2002
    Applicant: Photon-X, Inc.
    Inventors: Renyuan Gao, Renfeng Gao
  • Publication number: 20020186949
    Abstract: A channel waveguide optical amplifier is disclosed. The amplifier includes a substrate and an optical waveguide channel disposed on the substrate. The optical waveguide channel includes a first generally spiraling portion having a first free end and a first connected end, a second generally spiraling portion having a second free end and a second connected end, and a transition portion. The transition portion has a first transition section connected to the first connected end, a second transition section connected to the second connected end, and an inflection between the first and second transition sections. The amplifier also includes a directional coupler disposed on the substrate proximate the first free end. An amplifier assembly incorporating the channel waveguide is also disclosed.
    Type: Application
    Filed: October 4, 2001
    Publication date: December 12, 2002
    Applicant: Photon-X, Inc.
    Inventor: Renyuan Gao
  • Publication number: 20020186952
    Abstract: An optical amplifier module is disclosed. The optical amplifier module includes a housing having an interior length and an interior width generally shorter than the interior length and an electronic control board disposed within the housing. The electronic control board includes a plurality of electronically connected components. The optical amplifier module also includes a gain medium disposed in the housing in a generally circularly spiral shape, such that the gain medium has a radius of curvature approximately one half the interior width of the housing. The optical amplifier module further includes a pump laser electronically connected to the electronic control board and optically connected to the gain medium.
    Type: Application
    Filed: June 8, 2001
    Publication date: December 12, 2002
    Applicant: Photon-X, Inc.
    Inventors: Renfeng Gao, Renyuan Gao
  • Patent number: 6483978
    Abstract: An optical amplifier module is disclosed. The optical amplifier module includes a housing having an interior length and an interior width generally shorter than the interior length and an electronic control board disposed within the housing. The electronic control board includes a plurality of electronically connected components. The optical amplifier module also includes a gain medium disposed in the housing in a generally circularly spiral shape, such that the gain medium has a radius of curvature approximately one half the interior width of the housing. The optical amplifier module further includes a pump laser electronically connected to the electronic control board and optically connected to the gain medium.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: November 19, 2002
    Assignee: Photon-X, Inc.
    Inventors: Renfeng Gao, Renyuan Gao
  • Publication number: 20020118445
    Abstract: An L band optical amplifier in disclosed. The optical amplifier includes a signal line which has an input, an output disposed optically downstream of the input, and an amplifying gain medium optically disposed between the input and the output. The optical amplifier further includes a laser optically connected to the first amplifying gain medium and an apparatus for directing C band light into the amplifying gain medium.
    Type: Application
    Filed: June 25, 2001
    Publication date: August 29, 2002
    Applicant: Photon-X, Inc.
    Inventors: Aydin Yeniay, Renyuan Gao
  • Publication number: 20020081069
    Abstract: A system and method for suppressing light scattering in optical fiber transmission systems are disclosed. The system includes an optical fiber assembly having first and second ends and at least one blocking apparatus disposed along the fiber between the first and second ends. The method includes providing a fiber assembly having a first end and a second end; installing a blocking apparatus in the fiber assembly between the first end and the second end; and transmitting light between the first end and the second end. The fiber assembly generates Brillouin and Rayleigh scattering light in a direction opposite the direction of the transmitted light, and the blocking apparatus suppresses the Brillouin and Rayleigh scattering light.
    Type: Application
    Filed: June 8, 2001
    Publication date: June 27, 2002
    Applicant: Photon-X, Inc.
    Inventors: Aydin Yeniay, Renyuan Gao
  • Patent number: 6292292
    Abstract: Disclosed are cost-effective, compact, optically pumped, high gain, rare earth polymer materials such as, erbium (Er3+) perfluoro polymers, optical fibers made from the materials and waveguide amplifiers made from the materials having low-loss at telecommunications wavelengths for operation in communications network systems. The polymer amplifier is based on the use of novel high performance rare earth (RE) polymer materials. The new discovered highly transparent RE polymer materials are directly synthesized at high RE ion concentrations (˜1020−1021 rare earth ion/cm3˜10% wt) with each metal ion encapsulated and physically buffered by insulating, covalently bonded, perfluorinated phosphate ligands that then form the high temperature stable, polymer backbone matrix. This is distinctly different from widely studied inorganic glasses and single crystals where RE ion salts are doped directly into the host but only to relatively low levels (<0.1% wt).
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: September 18, 2001
    Assignee: Photon-X
    Inventors: Anthony F. Garito, Robert A. Norwood, Renyuan Gao, Anna Panackal