Patents by Inventor Yanfei Bai

Yanfei Bai 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).

  • Patent number: 11853871
    Abstract: A system includes a first unit configured to generate a plurality of modulator control signals, and a processor unit. The processor unit includes: a light source or port configured to provide a plurality of light outputs, and a first set of optical modulators coupled to the light source or port and the first unit. The optical modulators in the first set are configured to generate an optical input vector by modulating the plurality of light outputs provided by the light source or port based on digital input values corresponding to a first set of modulator control signals in the plurality of modulator control signals, the optical input vector comprising a plurality of optical signals. The processor unit also includes a matrix multiplication unit that includes a second set of optical modulators.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: December 26, 2023
    Assignee: Lightelligence PTE. Ltd.
    Inventors: Huaiyu Meng, Yichen Shen, Arash Hosseinzadeh, Yelong Xu, Yanfei Bai, Ronald Gagnon, Cheng-Kuan Lu, Jonathan Terry, Jingdong Deng, Maurice Steinman
  • Patent number: 11853870
    Abstract: A manufacturing method for a photonic device includes dividing a target photonic network, which is a photonic network configured for the photonic semiconductor device, into a plurality of sub-photonic networks, forming the plurality of sub-photonic networks on a plurality of photonic chips, and connecting the plurality of sub-photonic networks on the plurality of photonic chips through a coupler to obtain the photonic semiconductor device carrying the target photonic network, wherein the coupler is configured to couple light from one photonic chip to another photonic chip. Compared with the scale of the photonic network of the existing photonic semiconductor device, which is limited due to the footprint limitation of a single chip, the scale of the photonic network of the photonic semiconductor device is increased several times.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: December 26, 2023
    Assignee: NANJING GUANGZHIYUAN TECHNOLOGY CO., LTD.
    Inventors: Yichen Shen, Huaiyu Meng, Zhan Su, Yanfei Bai, Jinghui Zou
  • Publication number: 20230057523
    Abstract: A system includes a first unit configured to generate a plurality of modulator control signals, and a processor unit. The processor unit includes: a light source or port configured to provide a plurality of light outputs, and a first set of optical modulators coupled to the light source or port and the first unit. The optical modulators in the first set are configured to generate an optical input vector by modulating the plurality of light outputs provided by the light source or port based on digital input values corresponding to a first set of modulator control signals in the plurality of modulator control signals, the optical input vector comprising a plurality of optical signals. The processor unit also includes a matrix multiplication unit that includes a second set of optical modulators.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 23, 2023
    Inventors: Arash Hosseinzadeh, Yelong Xu, Yanfei Bai, Huaiyu Meng, Ronald Gagnon, Cheng-Kuan Lu, Jonathan Terry, Jingdong Deng, Maurice Steinman, Yichen Shen
  • Patent number: 11507818
    Abstract: A system includes a first unit configured to generate a plurality of modulator control signals, and a processor unit. The processor unit includes: a light source or port configured to provide a plurality of light outputs, and a first set of optical modulators coupled to the light source or port and the first unit. The optical modulators in the first set are configured to generate an optical input vector by modulating the plurality of light outputs provided by the light source or port based on digital input values corresponding to a first set of modulator control signals in the plurality of modulator control signals, the optical input vector comprising a plurality of optical signals. The processor unit also includes a matrix multiplication unit that includes a second set of optical modulators.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: November 22, 2022
    Assignee: LIGHTELLIGENCE PTE. LTD.
    Inventors: Arash Hosseinzadeh, Yelong Xu, Yanfei Bai, Huaiyu Meng, Ronald Gagnon, Cheng-Kuan Lu, Jonathan Terry, Jingdong Deng, Maurice Steinman, Yichen Shen
  • Publication number: 20220343149
    Abstract: A manufacturing method for a photonic device includes dividing a target photonic network, which is a photonic network configured for the photonic semiconductor device, into a plurality of sub-photonic networks, forming the plurality of sub-photonic networks on a plurality of photonic chips, and connecting the plurality of sub-photonic networks on the plurality of photonic chips through a coupler to obtain the photonic semiconductor device carrying the target photonic network, wherein the coupler is configured to couple light from one photonic chip to another photonic chip. Compared with the scale of the photonic network of the existing photonic semiconductor device, which is limited due to the footprint limitation of a single chip, the scale of the photonic network of the photonic semiconductor device is increased several times.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 27, 2022
    Inventors: Zhan SU, Yanfei BAI, Jinghui ZOU, Huaiyu MENG, Yichen SHEN
  • Publication number: 20220334418
    Abstract: The invention relates to the field of photonic integrated circuits and provides an optical modulator and a photonic integrated system, which can suppress phase deviation caused by carrier diffusion. The optical modulator includes at least one phase shifter including a waveguide channel for transmitting optical signal, and a P-type doped region and a N-type doped region located on opposite sides of the waveguide channel. In the waveguide channel, an undoped intrinsic region is located between the P-type doped region and the N-type doped region. At least one end of the intrinsic region or close to the at least one end is provided with a blocking structure for blocking the diffusion of carriers from the intrinsic region along the waveguide propagation direction, so that the phase deviation caused by the diffusion of carriers can be suppressed, and the electrical crosstalk between adjacent phase shifters can be suppressed, thereby avoiding modulation signal distortion caused by the electrical crosstalk.
    Type: Application
    Filed: April 14, 2022
    Publication date: October 20, 2022
    Inventors: Yanfei BAI, Zhan SU, Zhengguan LU, Yelong XU, Huaiyu MENG, Yichen SHEN
  • Publication number: 20210173238
    Abstract: A system including at least one input optical waveguide configured to receive an optical wave, at least one digital input port configured to receive a series of digital input values, each digital input value including two or more bits, and an optical modulator coupled to the input optical waveguide. The optical modulator includes an optical waveguide portion that includes multiple optical waveguide segments associated with diode sections positioned along the optical waveguide segments, in which the diode sections are configured to apply different respective modulation contributions to an optical wave propagating through the optical waveguide portion.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Arash Hosseinzadeh, Yelong Xu, Yanfei Bai, Huaiyu Meng, Ronald Gagnon, Cheng-Kuan Lu, Jonathan Terry, Jingdong Deng, Maurice Steinman, Yichen Shen
  • Publication number: 20200110992
    Abstract: A system includes a first unit configured to generate a plurality of modulator control signals, and a processor unit. The processor unit includes: a light source or port configured to provide a plurality of light outputs, and a first set of optical modulators coupled to the light source or port and the first unit. The optical modulators in the first set are configured to generate an optical input vector by modulating the plurality of light outputs provided by the light source or port based on digital input values corresponding to a first set of modulator control signals in the plurality of modulator control signals, the optical input vector comprising a plurality of optical signals. The processor unit also includes a matrix multiplication unit that includes a second set of optical modulators.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Inventors: Arash Hosseinzadeh, Yelong Xu, Yanfei Bai, Huaiyu Meng, Ronald Gagnon, Cheng-Kuan Lu, Jonathan Terry, Jingdong Deng, Maurice Steinman, Yichen Shen