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    Method and system for an optoelectronic built-in self-test system for silicon photonics optical transceivers
    11.
    发明授权
    Method and system for an optoelectronic built-in self-test system for silicon photonics optical transceivers 有权

    公开(公告)号：US10348459B2

    公开(公告)日：2019-07-09

    申请号：US15962829

    申请日：2018-04-25

    Applicant: Luxtera, Inc.

    Inventor： Steffen Gloeckner ,  Subal Sahni ,  Joseph Balardeta ,  Simon Pang ,  Stefan Barabas ,  Scott Denton

    IPC: H04B10/00 ,  H04L1/24 ,  H04B10/40 ,  H04B10/077 ,  H04B10/80

    Abstract: Methods and systems for an optoelectronic built-in self-test (BIST) system for silicon photonics optical transceivers are disclosed and may include, in an optoelectronic transceiver having a transmit (Tx) path and a receive (Rx) path, where the Rx path includes a main Rx path and a BIST loopback path: generating a pseudo-random bit sequence (PRBS) signal, generating an optical signal in the Tx path by applying the PRBS signal to a modulator, communicating the optical signal to the BIST loopback path and converting to an electrical signal utilizing a photodetector, the photodetector being a replica of a photodetector in the main Rx path, and assessing the performance of the Tx and Rx paths by extracting a PRBS signal from the electrical signal. The transceiver may be a single complementary-metal oxide semiconductor (CMOS) die or in two CMOS die, where a first comprises electronic devices and a second comprises optical devices.

    Method And System For An Optical Connection Service Interface
    12.
    发明申请
    Method And System For An Optical Connection Service Interface 审中-公开

    公开(公告)号：US20180219630A1

    公开(公告)日：2018-08-02

    申请号：US15927521

    申请日：2018-03-21

    Applicant: Luxtera, Inc.

    Inventor： Gianlorenzo Masini ,  Joseph Balardeta ,  Scott Denton

    IPC: H04B10/40 ,  H04B10/077

    CPC classification number: H04B10/40 ,  H04B10/0779

    Abstract: Methods and systems for an optical connection service interface may include, in an optical data link comprising an optical fiber, a local control system, first and second transceivers at ends of the optical fiber, generating a signal for the local control system at a low frequency and communicating, utilizing the optical fiber, an optical data signal at a high frequency and an Optical Connection Service interface (OCSi) signal at an intermediate frequency. An optical signal may be modulated at the intermediate frequencies for the OCSi, and may be modulated and communicated to the second transceiver. The communicated modulated signal and the optical data signal may be detected utilizing a photodetector in the second transceiver. The detected optical signal may be demodulated, and an optical power of the optical data signal may be configured based on the demodulated signal.

    Method and system for an optical connection service interface
    13.
    发明授权
    Method and system for an optical connection service interface 有权

    公开(公告)号：US10439725B2

    公开(公告)日：2019-10-08

    申请号：US15927521

    申请日：2018-03-21

    Applicant: Luxtera, Inc.

    Inventor： Gianlorenzo Masini ,  Joseph Balardeta ,  Scott Denton

    IPC: H04B10/00 ,  H04B10/40 ,  H04B10/077

    Abstract: Methods and systems for an optical connection service interface may include, in an optical data link comprising an optical fiber, a local control system, first and second transceivers at ends of the optical fiber, generating a signal for the local control system at a low frequency and communicating, utilizing the optical fiber, an optical data signal at a high frequency and an Optical Connection Service interface (OCSi) signal at an intermediate frequency. An optical signal may be modulated at the intermediate frequencies for the OCSi, and may be modulated and communicated to the second transceiver. The communicated modulated signal and the optical data signal may be detected utilizing a photodetector in the second transceiver. The detected optical signal may be demodulated, and an optical power of the optical data signal may be configured based on the demodulated signal.

    Method and system for an optical connection service interface
    14.
    发明授权
    Method and system for an optical connection service interface 有权

    公开(公告)号：US09929811B2

    公开(公告)日：2018-03-27

    申请号：US15286150

    申请日：2016-10-05

    Applicant: Luxtera, Inc.

    Inventor： Gianlorenzo Masini ,  Joseph Balardeta ,  Scott Denton

    IPC: H04B10/00 ,  H04B10/40 ,  H04B10/077

    CPC classification number: H04B10/40 ,  H04B10/0779

    Abstract: Methods and systems for an optical connection service interface may include, in an optical data link comprising an optical fiber, a local control system, first and second transceivers at ends of the optical fiber, generating a control signal for the local control system at a low frequency and communicating, utilizing the optical fiber, an optical data signal at a high frequency and an optical service signal for an Optical Connection Service interface (OCSi) at an intermediate frequency. An optical signal may be modulated at the intermediate frequencies for the OCSi, and may be modulated and communicated to the second transceiver. The communicated modulated signal and the optical data signal may be detected utilizing a photodetector in the second transceiver. The detected optical signal may be demodulated, and an optical power of the optical data signal may be configured based on the demodulated signal.

    METHOD AND SYSTEM FOR AN OPTOELECTRONIC BUILT-IN SELF-TEST SYSTEM FOR SILICON PHOTONICS OPTICAL TRANSCEIVERS
    16.
    发明申请
    METHOD AND SYSTEM FOR AN OPTOELECTRONIC BUILT-IN SELF-TEST SYSTEM FOR SILICON PHOTONICS OPTICAL TRANSCEIVERS 有权
    用于硅光电子光电收发器的光电内置自检系统的方法和系统

    公开(公告)号：US20150381273A1

    公开(公告)日：2015-12-31

    申请号：US14752729

    申请日：2015-06-26

    Applicant: Luxtera, Inc.

    Inventor： Steffen Gloeckner ,  Subal Sahni ,  Joseph Balardeta ,  Simon Pang ,  Scott Denton

    IPC: H04B10/077 ,  H04L1/24 ,  H04B10/40

    CPC classification number: H04L1/243 ,  H04B10/0779 ,  H04B10/40 ,  H04B10/801 ,  H04L1/244

    Abstract: Methods and systems for an optoelectronic built-in self-test (BIST) system for silicon photonics optical transceivers are disclosed and may include, in an optoelectronic transceiver having a transmit (Tx) path and a receive (Rx) path, where the Rx path includes a main Rx path and a BIST loopback path: generating a pseudo-random bit sequence (PRBS) signal, generating an optical signal in the Tx path by applying the PRBS signal to a modulator, communicating the optical signal to the BIST loopback path and converting to an electrical signal utilizing a photodetector, the photodetector being a replica of a photodetector in the main Rx path, and assessing the performance of the Tx and Rx paths by extracting a PRBS signal from the electrical signal. The transceiver may be a single complementary-metal oxide semiconductor (CMOS) die or in two CMOS die, where a first comprises electronic devices and a second comprises optical devices.

    Abstract translation: 公开了用于硅光子学光收发器的光电内置自测（BIST）系统的方法和系统，并且可以包括在具有发射（Tx）路径和接收（Rx）路径的光电收发器中，其中Rx路径 包括主Rx路径和BIST环回路径：产生伪随机位序列（PRBS）信号，通过将PRBS信号施加到调制器来产生Tx路径中的光信号，将光信号传送到BIST环回路径，以及 利用光电检测器转换为电信号，所述光电检测器是主Rx路径中的光电检测器的复制品，并且通过从电信号提取PRBS信号来评估Tx和Rx路径的性能。 收发器可以是单个互补金属氧化物半导体（CMOS）管芯或两个CMOS管芯，其中第一个包括电子器件，第二个包括光学器件。

    Method and system for a distributed mach-zehnder interferometer with integrated feed forward equalizer
    17.
    发明授权
    Method and system for a distributed mach-zehnder interferometer with integrated feed forward equalizer 有权

    公开(公告)号：US10782543B2

    公开(公告)日：2020-09-22

    申请号：US16005233

    申请日：2018-06-11

    Applicant: Luxtera, Inc.

    Inventor： Brian Welch ,  Scott Denton ,  Joseph Balardeta ,  Simon Pang

    IPC: H04B10/50 ,  G02F1/01 ,  G02F1/225 ,  G02F1/21

    Abstract: Methods and systems for a distributed Mach-Zehnder Interferometer (MZI) with an integrated feed forward equalizer (FFE) may include a photonic chip comprising an optical modulator having diode drivers, local voltage domain splitters, and delay elements, where each is distributed along a length of the optical modulator. Outputs of the delay elements may be coupled to inputs of the local domain splitters, and outputs of the local voltage domain splitters may be coupled to inputs of the diode drivers. A feed forward equalization (FFE) module comprising a configurable delay element with inverted outputs coupled to one of the delay elements along the length of the modulator, may be coupled to a local voltage domain splitter. An input electrical signal may be received and delayed using the delay elements and coupled to the local domain splitters, and input electrical signals for the diode drivers may be generated using the local domain splitters.

    Method And System For Accurate Gain Adjustment Of A Transimpedance Amplifier Using A Dual Replica And Servo Loop
    18.
    发明申请
    Method And System For Accurate Gain Adjustment Of A Transimpedance Amplifier Using A Dual Replica And Servo Loop 审中-公开

    公开(公告)号：US20190109572A1

    公开(公告)日：2019-04-11

    申请号：US16197670

    申请日：2018-11-21

    Applicant: Luxtera, Inc.

    Inventor： Stefan Barabas ,  Joseph Balardeta ,  Simon Pang ,  Scott Denton

    IPC: H03G3/30 ,  H03F1/42 ,  H03F1/56 ,  H03F3/08 ,  H03F1/08

    Abstract: Methods and systems for accurate gain adjustment of a transimpedance amplifier using a dual replica and servo loop is disclosed and may include, in a transimpedance amplifier (TIA) circuit comprising a first TIA, a second TIA, and a third TIA, each comprising a configurable feedback impedance, and a control loop, where the control loop comprises a gain stage with inputs coupled to outputs of the first and second TIAs and an output coupled to the configurable feedback impedance of the second and third TIAs: configuring a gain level of the first TIA by configuring its feedback impedance, configuring a gain level of the third TIA by configuring a reference current applied to an input of the first TIA, and amplifying a received electrical signal to generate an output voltage utilizing the third TIA. The reference current may generate a reference voltage at one of the inputs of the gain stage.

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