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    HIGH RESOLUTION CORRELATION OPTICAL TIME DOMAIN REFLECTOMETER
    1.
    发明申请
    HIGH RESOLUTION CORRELATION OPTICAL TIME DOMAIN REFLECTOMETER 审中-公开

    公开(公告)号：WO2018165388A1

    公开(公告)日：2018-09-13

    申请号：PCT/US2018/021484

    申请日：2018-03-08

    Applicant: PANDUIT CORP.

    Inventor： CASTRO, Jose ,  PIMPINELLA, Richard ,  KOSE, Bulent ,  LANE, Brett

    IPC: H04B10/071 ,  G01M11/00

    Abstract: Embodiments of the present invention generally relate to the field of fiber optic communication, and more specifically, to optical time domain reflectometer apparatuses used for testing the integrity of a communication channel. Due to its high bandwidth, low dispersion, low attenuation, and immunity to electromagnetic interference among other advantages single-mode and multimode optical fibers are the standard transmission media used for intermediate and long reach high-speed communication applications in data centers, enterprise networks, metropolitan area networks (MANs), and long haul systems. Optical channels often contain other passive elements such as optical connectors, adapters, patch cords, splitters, combiners, and filters.

    SMF TO MMF COUPLER
    2.
    发明申请
    SMF TO MMF COUPLER 审中-公开

    公开(公告)号：WO2020086161A1

    公开(公告)日：2020-04-30

    申请号：PCT/US2019/049496

    申请日：2019-09-04

    Applicant: PANDUIT CORP.

    Inventor： CASTRO, Jose ,  HUANG, Yu ,  KOSE, Bulent ,  PIMPINELLA, Richard ,  NOVICK, Asher

    IPC: G02B6/02 ,  G02B6/26 ,  G02B6/028 ,  H04B10/2581

    Abstract: A patch cord for transmitting between a single mode fiber (SMF) and a multi-mode fiber (MMFs) has a MMF, SMF, and a photonic crystal fiber (PCF) with a hollow core placed between the SMF and MMF. A mode field diameter (MFD) of the PCF hollow core section is in the range of 16 to 19 microns, the length of the PCF is between 1 cm to 10 cm, the MMF has 50±2 microns core diameter, the SMF has a 6-9 microns core diameter, and the coupling between the PCF mode to the MMF fundamental mode is maximized.

    METHODS AND SYSTEMS FOR FIBER OPTIC COMMUNICATION
    3.
    发明申请
    METHODS AND SYSTEMS FOR FIBER OPTIC COMMUNICATION 审中-公开
    用于光纤通信的方法和系统

    公开(公告)号：WO2018075239A1

    公开(公告)日：2018-04-26

    申请号：PCT/US2017/055096

    申请日：2017-10-04

    Applicant: PANDUIT CORP.

    Inventor： CASTRO, Jose ,  PIMPINELLA, Richard ,  LANE, Brett ,  KOSE, Bulent ,  HUANG, Yu

    IPC: H04B10/2507 ,  H04B10/2513 ,  H04B10/2543 ,  H04B10/61

    CPC classification number: H04B10/2507 ,  H04B10/07953 ,  H04B10/2513 ,  H04B10/2543 ,  H04B10/6163 ,  H04J2203/0076 ,  H04Q2213/03

    Abstract: The present invention relates in general to communication systems, and more specifically towards methods, systems, and devices that help improve transmission rates and spectral efficiency of intensity modulated (IM) or power modulated channels utilizing multi-level pulse amplitude modulation PAM-M. In an embodiment, the present invention used an iterative algorithm to open the eyes of an eye diagram in a relatively short number of steps. The algorithm, which may not require previous characterization of the channel, utilizes pseudo-random sequences, such as PSBS15 or PRQS10, and adaptive non-linear equalizers to optimize the pre-distortion taps.

    Abstract translation: 本发明一般涉及通信系统，并且更具体地涉及有助于利用多电平来改善强度调制（IM）或功率调制信道的传输速率和频谱效率的方法，系统和设备 脉冲幅度调制PAM-M。 在一个实施例中，本发明使用迭代算法以相对短的步数打开眼图的眼睛。 该算法可能不需要信道的先前表征，利用伪随机序列（例如PSBS15或PRQS10）和自适应非线性均衡器来优化预失真抽头。

    METHODS FOR ESTIMATING MODAL BANDWIDTH SPECTRAL DEPENDENCE
    4.
    发明申请
    METHODS FOR ESTIMATING MODAL BANDWIDTH SPECTRAL DEPENDENCE 审中-公开
    估计模式带宽频谱依赖性的方法

    公开(公告)号：WO2018071264A1

    公开(公告)日：2018-04-19

    申请号：PCT/US2017/055307

    申请日：2017-10-05

    Applicant: PANDUIT CORP.

    Inventor： CASTRO, Jose ,  PIMPINELLA, Richard ,  KOSE, Bulent ,  LANE, Brett ,  HUANG, Yu ,  NOVICK, Asher

    IPC: G01M11/00 ,  H04B10/077 ,  H04B10/079

    Abstract: Methods for estimating the Effective Modal Bandwidth (EMB) of laser optimized Multimode Fiber (MMF) at a specified wavelength, λS, based on the measured EMB at a first reference measurement wavelength, λM. In these methods the Differential Mode Delay (DMD) of a MMF is measured and the Effective Modal Bandwidth (EMB) is computed at a first measurement wavelength. By extracting signal features such as centroids, peak power, pulse widths, and skews, as described in this disclosure, the EMB can be estimated at a second specified wavelength with different degrees of accuracy. The first method estimates the EMB at the second specified wavelength based on measurements at the reference wavelength. The second method predicts if the EMB at the second specified wavelength is equal or greater than a specified bandwidth limit.

    Abstract translation: 基于在第一参考测量波长λM处测量的EMB，估计在特定波长λS处激光优化的多模光纤（MMF）的有效模式带宽（EMB）的方法。 在这些方法中，测量MMF的差模延迟（DMD），并且在第一测量波长处计算有效模式带宽（EMB）。 如本公开中所描述的，通过提取诸如质心，峰值功率，脉冲宽度和歪斜之类的信号特征，可以以不同精确度的第二指定波长估计EMB。 第一种方法根据参考波长的测量值估算第二个指定波长的EMB。 第二种方法预测第二个指定波长的EMB是否等于或大于指定的带宽限制。

    SPATIAL SPECTRAL MESH
    5.
    发明申请
    SPATIAL SPECTRAL MESH 审中-公开

    公开(公告)号：WO2020014464A1

    公开(公告)日：2020-01-16

    申请号：PCT/US2019/041377

    申请日：2019-07-11

    Applicant: PANDUIT CORP.

    Inventor： CASTRO, Jose ,  PIMPINELLA, Richard ,  REID, Robert A ,  KOSE, Bulent ,  HUANG, Yu ,  NOVICK, Asher

    IPC: H04Q11/00

    Abstract: A fiber optic interconnection assembly has a plurality of leaf components and a plurality of spine components. Each leaf component of the plurality of leaf components is connected to each spine component of the plurality of spine components. Each spine components of the plurality of spine components is connected to each leaf component of the plurality of leaf components. Wherein the connections for each leaf component to each of the spine components is at a different wavelength and the connections for each spine component to each of the leaf components is at a different wavelength.

    OPTICAL FIBER TERMINATION USING A REFERENCE SOURCE
    7.
    发明申请
    OPTICAL FIBER TERMINATION USING A REFERENCE SOURCE 审中-公开

    公开(公告)号：WO2019089253A1

    公开(公告)日：2019-05-09

    申请号：PCT/US2018/056844

    申请日：2018-10-22

    Applicant: PANDUIT CORP.

    Inventor： CASTRO, Jose ,  PIMPINELLA, Richard ,  HUANG, Yu ,  KOSE, Bulent ,  NOVICK, Asher

    IPC: G01M11/00 ,  G02B6/38

    Abstract: Examples disclosed herein illustrate systems and methods to determine and evaluate the quality of mechanical splices of optical fibers using insertion loss estimation. In at least some of the disclosed systems and methods, an optical fiber termination system (100) may include a reference fiber (301) coupling a light source (201) and a stub fiber (101) of a fiber optic connector (109), a digital camera sensor (205) and lens (204) to capture images of scattered light emanating from a portion of the fiber optic connector (109) and a portion of the reference fiber (301) both in a field of view (FOV) of the digital camera sensor (205), and a processor (206). The processor (206) may analyze digital images of scatter light emitted from at least a portion of the fiber optic connector (109) and the reference fiber (301) to estimate insertion loss at the fiber optic connector (109).

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