Patents by Inventor Shaoqi FENG

Shaoqi FENG 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).

  • In-microresonator linear-absorption-based real-time photocurrent-monitoring and tuning with closed-loop control for silicon microresonators
    Patent number: 9134169
    Abstract: An integrated silicon optical device is capable of being monitored and tuned in real-time. The integrated silicon optical device includes: a bus waveguide, comprising an input port and an output port; an optical microresonator coupled to the bus waveguide, configured to selectively receive light at a desired resonance wavelength from the bus waveguide; a photodetector, configured to electrically read out an operation condition of the optical microresonator; a diode-tuner, configured to blueshift or redshift the resonance wavelength of the optical microresonator; a micro-heater, configured to redshift the resonance wavelength of the optical microresonator; and a control unit, comprising a transimpedance amplifier (TIA) and a microprocessor, configured to implement a two-stage closed-loop tuning scheme.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: September 15, 2015
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Yu Li, Shaoqi Feng, Yu Zhang, Andrew Wing On Poon
  • IN-MICRORESONATOR LINEAR-ABSORPTION-BASED REAL-TIME PHOTOCURRENT-MONITORING AND TUNING WITH CLOSED-LOOP CONTROL FOR SILICON MICRORESONATORS
    Publication number: 20140110572
    Abstract: An integrated silicon optical device is capable of being monitored and tuned in real-time. The integrated silicon optical device includes: a bus waveguide, comprising an input port and an output port; an optical microresonator coupled to the bus waveguide, configured to selectively receive light at a desired resonance wavelength from the bus waveguide; a photodetector, configured to electrically read out an operation condition of the optical microresonator; a diode-tuner, configured to blueshift or redshift the resonance wavelength of the optical microresonator; a micro-heater, configured to redshift the resonance wavelength of the optical microresonator; and a control unit, comprising a transimpedance amplifier (TIA) and a microprocessor, configured to implement a two-stage closed-loop tuning scheme.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 24, 2014
    Applicant: The Hong Kong University of Science and Technology
    Inventors: Yu LI, Shaoqi FENG, Yu ZHANG, Andrew Wing On POON