Patents by Inventor Shuyu Yang

Shuyu Yang 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).

  • PHOTONIC INTEGRATED CIRCUIT INCORPORATING A BANDGAP TEMPERATURE SENSOR
    Publication number: 20160124251
    Abstract: An optical device that includes means for thermal stabilization and control is described. The optical device can be a ring resonator, or another device that requires accurate control of the phase of the optical signal. In an example involving an optical resonator, a thermal stabilization system includes a temperature sensor, a control circuit, and a heater local to the resonator. The temperature sensor can be a bandgap temperature sensor formed of a pair of matched p/n junctions biased in operation at different junction currents.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Inventors: Yi Zhang, Shuyu Yang, Kishore Padmaraju, Michael J. Hochberg
  • COMPACT AND LOW LOSS Y-JUNCTION FOR SUBMICRON SILICON WAVEGUIDE
    Publication number: 20160033765
    Abstract: A compact, low-loss and wavelength insensitive Y-junction for submicron silicon waveguides. The design was performed using FDTD and particle swarm optimization (PSO). The device was fabricated in a 248 nm CMOS line. Measured average insertion loss is 0.28±0.02 dB across an 8-inch wafer. The device footprint is less than 1.2 ?m×2 ?m, orders of magnitude smaller than MMI and directional couplers.
    Type: Application
    Filed: August 25, 2015
    Publication date: February 4, 2016
    Inventors: Yang Liu, Yangjin Ma, Ruizhi Shi, Michael J. Hochberg, Yi Zhang, Shuyu Yang, Thomas Wetteland Baehr-Jones
  • Compact and low loss Y-junction for submicron silicon waveguide
    Patent number: 9217829
    Abstract: A compact, low-loss and wavelength insensitive Y-junction for submicron silicon waveguides. The design was performed using FDTD and particle swarm optimization (PSO). The device was fabricated in a 248 nm CMOS line. Measured average insertion loss is 0.28±0.02 dB across an 8-inch wafer. The device footprint is less than 1.2 ?m×2 ?m, orders of magnitude smaller than MMI and directional couplers.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: December 22, 2015
    Assignee: Coriant Advanced Technology, LLC
    Inventors: Yi Zhang, Shuyu Yang, Tom Baehr-Jones
  • QUANTUM DOT SOA-SILICON EXTERNAL CAVITY MULTI-WAVELENGTH LASER
    Publication number: 20150180201
    Abstract: A hybrid external cavity multi-wavelength laser using a QD RSOA and a silicon photonics chip is demonstrated. Four lasing modes at 2 nm spacing and less than 3 dB power non-uniformity were observed, with over 20 mW of total output power. Each lasing peak can be successfully modulated at 10 Gb/s. At 10?9 BER, the receiver power penalty is less than 2.6 dB compared to a conventional commercial laser. An expected application is the provision of a comb laser source for WDM transmission in optical interconnection systems.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 25, 2015
    Inventors: Yi Zhang, Shuyu Yang, Michael J. Hochberg, Thomas Baehr-Jones
  • Sagnac loop mirror based laser cavity on silicon photonics platform
    Patent number: 9059559
    Abstract: We have demonstrated a novel Sagnac loop and micro-ring based laser cavity which is simple and reliable, with accurately controlled reflectivity and negligible excess loss. The resonant wavelength of a 2 ?m radius micro-ring is shown to be lithographically controlled to a standard deviation of 3.6 nm. Both C- and O-Band lasers based on Sagnac loop mirror and micro-ring cavity have been demonstrated. The lasers are shown to be able to be modulated at 40 Gb/s.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: June 16, 2015
    Assignee: Coriant Advanced Technology, LLC
    Inventors: Yi Zhang, Shuyu Yang, Michael J. Hochberg, Thomas Baehr-Jones
  • SAGNAC LOOP MIRROR BASED LASER CAVITY ON SILICON PHOTONICS PLATFORM
    Publication number: 20150139264
    Abstract: We have demonstrated a novel Sagnac loop and micro-ring based laser cavity which is simple and reliable, with accurately controlled reflectivity and negligible excess loss. The resonant wavelength of a 2 ?m radius micro-ring is shown to be lithographically controlled to a standard deviation of 3.6 nm. Both C- and O-Band lasers based on Sagnac loop mirror and micro-ring cavity have been demonstrated. The lasers are shown to be able to be modulated at 40 Gb/s.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventors: Yi Zhang, Shuyu Yang, Michael J. Hochberg, Thomas Baehr-Jones
  • Compact and low loss Y-junction for submicron silicon waveguide
    Publication number: 20140178005
    Abstract: A compact, low-loss and wavelength insensitive Y-junction for submicron silicon waveguides. The design was performed using FDTD and particle swarm optimization (PSO). The device was fabricated in a 248 nm CMOS line. Measured average insertion loss is 0.28±0.02 dB across an 8-inch wafer. The device footprint is less than 1.2 ?m×2 ?m, orders of magnitude smaller than MMI and directional couplers.
    Type: Application
    Filed: November 29, 2013
    Publication date: June 26, 2014
    Inventors: Yi Zhang, Shuyu Yang, Tom Baehr-Jones