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    AVALANCHE PHOTODIODE AND AN OPTICAL RECEIVER HAVING THE SAME
    31.
    发明申请
    AVALANCHE PHOTODIODE AND AN OPTICAL RECEIVER HAVING THE SAME 有权

    公开(公告)号：US20220271186A1

    公开(公告)日：2022-08-25

    申请号：US17249192

    申请日：2021-02-23

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Yuan Yuan ,  Di Liang ,  Xiaoge Zeng ,  Zhihong Huang

    IPC: H01L31/107 ,  H01L31/0336 ,  H01L31/02

    Abstract: Examples described herein relate to an avalanche photodiode (APD) and an optical receiver including the APD. The APD may include a substrate and a photon absorption region disposed on the substrate. The substrate may include a charge carrier acceleration region under the photon absorption region; a charge region adjacent to the charge carrier acceleration region; and a charge carrier multiplication region adjacent to the charge region. The charge carrier acceleration region, the charge region, and the charge carrier multiplication region are laterally formed in the substrate. When a biasing voltage is applied to the optoelectronic device, photon-generated free charge carriers may be generated in the photon absorption region and are diffused into the charge carrier acceleration region. The charge carrier acceleration region is configured to accelerate the photon-generated free charge carriers prior to the photon-generated free charge carriers entering into the charge region and undergoing impact ionization in the charge carrier multiplication region.

    OPTOELECTRONIC COMPONENT WITH CURRENT DEFLECTED TO HIGH-GAIN PATHS
    35.
    发明申请
    OPTOELECTRONIC COMPONENT WITH CURRENT DEFLECTED TO HIGH-GAIN PATHS 有权

    公开(公告)号：US20210083138A1

    公开(公告)日：2021-03-18

    申请号：US16949723

    申请日：2020-11-12

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Xiaoge Zeng ,  Zhihong Huang ,  Di Liang

    IPC: H01L31/107 ,  G01J1/44 ,  H01L31/18

    Abstract: A three-terminal avalanche photodiode provides a first controllable voltage drop across a light absorbing region and a second, independently controllable, voltage drop across a photocurrent amplifying region. The absorbing region may also have a different composition from the amplifying region, allowing further independent optimization of the two functional regions. An insulating layer blocks leakage paths, redirecting photocurrent toward the region(s) of highest avalanche gain. The resulting high-gain, low-bias avalanche photodiodes may be fabricated in integrated optical circuits using commercial CMOS processes, operated by power supplies common to mature computer architecture, and used for optical interconnects, light sensing, and other applications.

    Three-Terminal Optoelectronic Component with Improved Matching of Electric Field and Photocurrent Density
    36.
    发明申请
    Three-Terminal Optoelectronic Component with Improved Matching of Electric Field and Photocurrent Density 审中-公开

    公开(公告)号：US20200274019A1

    公开(公告)日：2020-08-27

    申请号：US16283224

    申请日：2019-02-22

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Xiaoge Zeng ,  Zhihong Huang ,  Di Liang

    IPC: H01L31/112 ,  H01L31/0224 ,  H01L31/18 ,  H01L31/02

    Abstract: A three-terminal avalanche photodiode provides a first controllable voltage drop across a light absorbing region and a second, independently controllable, voltage drop across a photocurrent amplifying region. The compositions of the absorbing region and the amplifying region may be optimized independently of each other. In the amplifying region, p-doped and n-doped structures are offset from each other both horizontally and vertically. Directly applying a voltage across a controlled region of the photocurrent path increases avalanche gain by shaping the electric field to overlap the photocurrent density. The resulting high-gain, low-bias avalanche photodiodes may be fabricated in integrated optical circuits using commercial CMOS processes, operated by power supplies common to mature computer architecture, and used for optical interconnects, light sensing, and other applications.

    OPTICAL SYSTEM HAVING OPTICAL SUPPLY SUB-SYSTEM WITH REDUNDANT LIGHT SOURCE
    39.
    发明申请
    OPTICAL SYSTEM HAVING OPTICAL SUPPLY SUB-SYSTEM WITH REDUNDANT LIGHT SOURCE 有权

    公开(公告)号：US20250035850A1

    公开(公告)日：2025-01-30

    申请号：US18358468

    申请日：2023-07-25

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Yiwei Peng ,  Stanley Cheung ,  Geza Kurczveil ,  Yuan Yuan ,  Zhihong Huang ,  Marco Fiorentino

    IPC: G02B6/293 ,  G02B6/35 ,  G02F1/025

    Abstract: An example optical system having an optical supply sub-system for supplying light to a photonic integrated circuit is presented. The optical supply sub-system includes a primary light source, an auxiliary light source, a first optical coupler, and a second optical coupler. The first optical coupler includes a first metal-oxide-semiconductor capacitor microring resonator (MOSCAP MRR) and the first optical coupler includes a second MOSCAP MRR. The first optical coupler is coupled to the primary light source and the photonic integrated circuit to control the propagation of the primary light to the photonic integrated circuit. The auxiliary light source may be configured to generate an auxiliary light when the primary light source malfunctions and the first MOSCAP MRR and the second MOSCAP MRR are controlled to control propagation of the auxiliary light from the auxiliary light source to the photonic integrated circuit.

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