中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

70 records (took 0.023 seconds)

    Systems and Methods for Processing an Optical Signal
    42.
    发明申请
    Systems and Methods for Processing an Optical Signal 审中-公开

    公开(公告)号：US20190324205A1

    公开(公告)日：2019-10-24

    申请号：US15959580

    申请日：2018-04-23

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Amit S. Sharma ,  John Paul Strachan ,  Marco Fiorentino

    IPC: G02B6/12

    Abstract: Systems and methods are provided for processing an optical signal. An example system may include a source disposed on a substrate and capable of emitting the optical signal. A first waveguide is formed in the substrate to receive the optical signal. A first coupler is disposed on the substrate to receive a reflected portion of the optical signal. A second waveguide is formed in the substrate to receive the reflected portion from the first coupler. A second coupler is formed in the substrate to mix the optical signal and the reflected portion to form a mixed signal. Photodetectors are formed in the substrate to convert the mixed signal to an electrical signal. A processor is electrically coupled to the substrate and programmed to convert the electrical signal from a time domain to a frequency domain to determine a phase difference between the optical signal and the reflected portion.

    COMB LASER ARRAYS FOR DWDM INTERCONNECTS
    43.
    发明申请
    COMB LASER ARRAYS FOR DWDM INTERCONNECTS 有权

    公开(公告)号：US20190317286A1

    公开(公告)日：2019-10-17

    申请号：US15953765

    申请日：2018-04-16

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Mir Ashkan Seyedi ,  Marco Fiorentino ,  Geza Kurczveil ,  Raymond G. Beausoleil

    IPC: G02B6/43 ,  H01S3/13 ,  H01S3/131 ,  H01S3/23 ,  G02B6/42

    Abstract: A photonic integrated circuit package includes two arrays or sets of integrated comb laser modules that are bonded to a silicon interposer. Each comb laser of an array has a common or overlapping spectral range, with each laser in the array being optically coupled to a local optical bus. The effective spectral range of the lasers in each array are different, or distinct, as to each array. An optical coupler is disposed within the silicon interposer and is optically coupled to each of the local optical buses. An ASIC (application specific integrated circuit) is bonded to the silicon interposer and provides control and operation of the comb laser modules.

    Receivers with automatic gain control
    44.
    发明授权
    Receivers with automatic gain control 有权

    公开(公告)号：US10432319B2

    公开(公告)日：2019-10-01

    申请号：US15768975

    申请日：2015-10-29

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Kehan Zhu ,  Cheng Li ,  Marco Fiorentino

    IPC: H04B10/00 ,  H04B10/69 ,  H04B10/2507 ,  H04B10/25 ,  H04L25/49 ,  H04J14/00

    Abstract: One example of a receiver includes a first stage, a second stage, a third stage, and an automatic gain controller. The first stage amplifies an input signal to provide a first signal. The second stage amplifies or attenuates the first signal to provide a second signal based on a tunable gain of the second stage. The tunable gain is adjusted in response to a differential signal. The third stage amplifies the second signal to provide an output signal. The automatic gain controller provides the differential signal based on a comparison between a peak voltage of the output signal and the sum of a common mode voltage of the output signal and an offset voltage.

    BIAS-BASED MACH-ZEHNDER MODULATION (MZM) SYSTEMS
    46.
    发明申请
    BIAS-BASED MACH-ZEHNDER MODULATION (MZM) SYSTEMS 审中-公开

    公开(公告)号：US20190190610A1

    公开(公告)日：2019-06-20

    申请号：US16275727

    申请日：2019-02-14

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Cheng Li ,  Jim Huang ,  Ashkan Seyedi ,  Marco Fiorentino ,  Raymond G. Beausoleil

    IPC: H04B10/50 ,  G02F1/01 ,  G02F1/225

    CPC classification number: H04B10/503 ,  G02F1/0102 ,  G02F1/0123 ,  G02F1/225 ,  G02F2001/212

    Abstract: One example includes a bias-based Mach-Zehnder modulation (MZM) system. The system includes a Mach-Zehnder modulator to receive and split an optical input signal and to provide an intensity-modulated optical output signal based on a high-frequency data signal to modulate a relative phase of the split optical input signal to transmit data and based on a bias voltage to modulate the relative phase of the split optical input signal to tune the Mach-Zehnder modulator. The system also includes a bias feedback controller to compare a detection voltage associated with the intensity-modulated output signal with a reference voltage to measure an extinction ratio associated with an optical power of the intensity-modulated optical output signal and to adjust the bias voltage based on the comparison to substantially maximize the extinction ratio.

    OPTICAL RECEIVERS
    47.
    发明申请
    OPTICAL RECEIVERS 审中-公开

    公开(公告)号：US20190089466A1

    公开(公告)日：2019-03-21

    申请号：US16085364

    申请日：2016-04-14

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Cheng Li ,  Kunzhi Yu ,  Marco Fiorentino ,  Raymond G. Beausoleil

    IPC: H04B10/69 ,  H04B10/63 ,  H04B10/516 ,  H04L25/49

    CPC classification number: H04B10/6931 ,  H04B10/5161 ,  H04B10/63 ,  H04B10/695 ,  H04L25/4917

    Abstract: An example optical receiver may have an optical receiver front-end, four slicers, and a logic block. The optical receiver front-end may include a transimpedance amplifier to convert a photodiode output signal to a voltage signal. Three of the slicers may be data slicers, and one of the slicers may be an edge slicer. The slicers may each: shift the voltage signal based on an offset voltage set for the respective slicer, determine whether the shifted voltage signal is greater than a threshold value and generate a number of comparison signals based on the determining, and generate multiple digital signals by demuxing the comparison signals. The logic block may perform PAM-4 to binary decoding based on the data signals output by the data slicers and clock-and-data-recovery based on the digital signals output by the edge slicer.

    POLARIZATION DIVERSE RING RESONATOR RECEIVERS
    49.
    发明申请
    POLARIZATION DIVERSE RING RESONATOR RECEIVERS 审中-公开

    公开(公告)号：US20180275348A1

    公开(公告)日：2018-09-27

    申请号：US15781531

    申请日：2015-12-11

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Joaquin Matres ,  Wayne Victor Sorin ,  Sagi Mathai ,  Lars Heige Thylen ,  Michael Renne Ty Tan ,  Marco Fiorentino

    IPC: G02B6/293 ,  H04B10/60

    Abstract: In the examples provided herein, a system includes a loop waveguide; and a grating coupler formed on the loop waveguide to couple light impinging on the grating coupler having a first polarization into the loop waveguide in a first direction, and to couple light having a second polarization, orthogonal to the first polarization, into the loop waveguide in a second direction. The system also includes a ring resonator positioned near the loop waveguide tuned to have a resonant wavelength at a first wavelength to couple light at the first wavelength out of the loop waveguide into the ring resonator. An output waveguide positioned near the ring resonator couples light out of the ring resonator into the output waveguide; and a photodetector detects light propagating out of a first end and a second end of the output waveguide.

Patent Agency Ranking