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    Monitoring and controlling optical nodes
    1.
    发明授权
    Monitoring and controlling optical nodes 有权
    监控和控制光节点

    公开(公告)号：US09363011B2

    公开(公告)日：2016-06-07

    申请号：US13733351

    申请日：2013-01-03

    Applicant: II-VI Incorporated

    Inventor： Ian Peter McClean ,  Peter Wigley

    IPC: H04B10/079 ,  H04B10/077

    CPC classification number: H04B10/0795 ,  H04B10/0775

    Abstract: A method and apparatus for monitoring and controlling an optical node 100. The optical node 100 including one or more optical components 120, 121 or 122 connected by optical fiber carrying an optical signal 102. The optical signal 102 including a plurality of optical channels. A set of measurement sequences is determined, each measurement sequence defining a set of optical channels from the plurality of optical channels and a measuring sequence for measuring an optical property of the set of optical channels. A measurement sequence is selected from the set of measurement sequences based on the operating conditions of the optical node 100. The optical properties of the set of optical channels of the selected measurement sequence are measured. The measured optical properties are analyzed to determine whether one or more optical components 120, 121 or 122 are causing the optical node 100 to operate outside the tolerance of a defined set of operating conditions. The operation of the determined optical components 120, 121 or 122 are adjusted to enable the optical node 100 to operate in accordance with the defined set of operating conditions. An optical performance monitor is also provided for use with the method and apparatus.

    Abstract translation: 一种用于监视和控制光节点100的方法和装置。光节点100包括由携带光信号102的光纤连接的一个或多个光学部件120,121或122.光信号102包括多个光通道。 确定一组测量序列，每个测量序列定义来自多个光学通道的一组光学通道，以及用于测量该光学通道组的光学特性的测量序列。 基于光节点100的操作条件从测量序列组中选择测量序列。测量所选择的测量序列的所述光通道组的光学性质。 分析测量的光学特性以确定一个或多个光学部件120,121或122是否使光学节点100在限定的一组操作条件的公差之外操作。 调整所确定的光学部件120,121或122的操作，以使得光学节点100能够根据所定义的一组操作条件来操作。 还提供了一种用于该方法和装置的光学性能监视器。

    Edge Propagating Optical Time Domain Reflectometer And Method Of Using The Same
    3.
    发明申请
    Edge Propagating Optical Time Domain Reflectometer And Method Of Using The Same 有权
    边缘传播光时域反射计及其使用方法

    公开(公告)号：US20160033359A1

    公开(公告)日：2016-02-04

    申请号：US14755057

    申请日：2015-06-30

    Applicant: II-VI Incorporated

    Inventor： Aravanan Gurusami ,  Timothy Zahnley ,  Scott Dahl ,  Deepak Devicharan ,  Ian Peter McClean

    IPC: G01M11/00

    CPC classification number: G01M11/3109 ,  G01M11/3145

    Abstract: An OTDR system utilizes a laser source that is turned “on” and kept powered until its light reaches the end of the fiber span being measured (i.e., until the fiber span is fully illuminated). At any point in time after the fiber is fully illuminated, the laser source can be turned “off”. The return (reflected and backscattered) signal is directed into a photodetector of the OTDR, and is measured from the point in time when the fiber span starts to be illuminated. The measurements are made by sampling the return signal at predetermined time intervals—defined as the sampling rate. The created power samples are then subjected to post-processing in the form of a differentiation operation to create a conventional OTDR trace from the collected data.

    Abstract translation: OTDR系统利用被打开的激光源并保持供电，直到其光达到被测量的光纤跨度的端部（即，直到光纤跨度被完全照明为止）。 在光纤完全照明后的任何时间点，激光源都可以被关闭。 返回（反射和反向散射）信号被引导到OTDR的光电检测器中，并且从纤维跨度开始被照亮的时间点测量。 通过以定义为采样率的预定时间间隔对返回信号进行采样来进行测量。 然后将所创建的功率样本以分化操作的形式进行后处理，以从收集的数据创建常规的OTDR迹线。

    Rare earth-doped fiber amplifier with integral optical metrology functionality
    6.
    发明授权
    Rare earth-doped fiber amplifier with integral optical metrology functionality 有权
    具有整体光学计量功能的稀土掺杂光纤放大器

    公开(公告)号：US09503181B2

    公开(公告)日：2016-11-22

    申请号：US14590460

    申请日：2015-01-06

    Applicant: II-VI Incorporated

    Inventor： Ian Peter McClean ,  Aravanan Gurusami

    IPC: H04B10/00 ,  H04B10/079 ,  H04B10/50 ,  H04B10/071 ,  G01M11/00 ,  H04J14/00

    CPC classification number: H04B10/07955 ,  G01M11/3154 ,  H04B10/071 ,  H04B10/2912 ,  H04B10/503

    Abstract: A doped fiber amplifier (e.g., an erbium-doped fiber amplifier—EDFA) module is configured to include metrology functionality for performing real-time measurements of the fiber spans connected to the EDFA. In one embodiment, a separate component utilized to perform optical time domain reflectometry (OTDR) measurements is embedded with the EDFA module. The OTDR measurement component includes its own laser source and detector, which are used to analyze the input and output fiber spans associated with the EDFA. In another embodiment, the pump laser of the EDFA is also used as the optical probe light source for the OTDR component, where the source is either “switched” or “shared” between performing amplification and providing OTDR measurements. In yet another embodiment, a “dual pump” source is included with the OTDR component itself and modified to utilize one laser for amplification and the other for OTDR purposes.

    Abstract translation: 掺杂光纤放大器（例如，掺铒光纤放大器EDFA）模块被配置为包括用于对连接到EDFA的光纤跨段进行实时测量的测量功能。 在一个实施例中，用于执行光学时域反射测量（OTDR）测量的单独部件嵌入EDFA模块。 OTDR测量组件包括自己的激光源和检测器，用于分析与EDFA相关的输入和输出光纤跨度。 在另一个实施例中，EDFA的泵浦激光器也用作OTDR组件的光学探针光源，其中源在执行放大和提供OTDR测量之间“切换”或“共享”。 在又一实施例中，OTDR组件本身包含“双泵”源，并被修改为利用一个激光进行放大，另一个用于OTDR目的。

    Rare Earth-Doped Fiber Amplifier With Integral Optical Metrology Functionality
    7.
    发明申请
    Rare Earth-Doped Fiber Amplifier With Integral Optical Metrology Functionality 有权
    具有整体光学计量功能的稀土掺杂光纤放大器

    公开(公告)号：US20160197673A1

    公开(公告)日：2016-07-07

    申请号：US14590460

    申请日：2015-01-06

    Applicant: II-VI Incorporated

    Inventor： Ian Peter McClean ,  Aravanan Gurusami

    IPC: H04B10/079 ,  G01M11/00 ,  H01S3/16 ,  H01S3/094 ,  H04B10/50 ,  H01S3/067

    CPC classification number: H04B10/07955 ,  G01M11/3154 ,  H04B10/071 ,  H04B10/2912 ,  H04B10/503

    Abstract: A doped fiber amplifier (e.g., an erbium-doped fiber amplifier—EDFA) module is configured to include metrology functionality for performing real-time measurements of the fiber spans connected to the EDFA. In one embodiment, a separate component utilized to perform optical time domain reflectometry (OTDR) measurements is embedded with the EDFA module. The OTDR measurement component includes its own laser source and detector, which are used to analyze the input and output fiber spans associated with the EDFA. In another embodiment, the pump laser of the EDFA is also used as the optical probe light source for the OTDR component, where the source is either “switched” or “shared” between performing amplification and providing OTDR measurements. In yet another embodiment, a “dual pump” source is included with the OTDR component itself and modified to utilize one laser for amplification and the other for OTDR purposes.

    Abstract translation: 掺杂光纤放大器（例如，掺铒光纤放大器EDFA）模块被配置为包括用于对连接到EDFA的光纤跨段进行实时测量的测量功能。 在一个实施例中，用于执行光学时域反射测量（OTDR）测量的单独部件嵌入EDFA模块。 OTDR测量组件包括自己的激光源和检测器，用于分析与EDFA相关的输入和输出光纤跨度。 在另一个实施例中，EDFA的泵浦激光器也用作OTDR组件的光学探针光源，其中源在执行放大和提供OTDR测量之间“切换”或“共享”。 在又一实施例中，OTDR组件本身包含“双泵”源，并被修改为利用一个激光进行放大，另一个用于OTDR目的。

    Edge propagating optical time domain reflectometer and method of using the same
    8.
    发明授权
    Edge propagating optical time domain reflectometer and method of using the same 有权

    公开(公告)号：US10564068B2

    公开(公告)日：2020-02-18

    申请号：US15641951

    申请日：2017-07-05

    Applicant: II-VI Incorporated

    Inventor： Aravanan Gurusami ,  Timothy Zahnley ,  Scott Dahl ,  Deepak Devicharan ,  Ian Peter McClean

    IPC: G01N21/00 ,  G01M11/00

    Abstract: An OTDR system utilizes a laser source that is turned “on” and kept powered until its light reaches the end of the fiber span being measured (i.e., until the fiber span is fully illuminated). At any point in time after the fiber is fully illuminated, the laser source can be turned “off”. The return (reflected and backscattered) signal is directed into a photodetector of the OTDR, and is measured from the point in time when the fiber span starts to be illuminated. The measurements are made by sampling the return signal at predetermined time intervals—defined as the sampling rate. The created power samples are then subjected to post-processing in the form of a differentiation operation to create a conventional OTDR trace from the collected data.

    Edge Propagating Optical Time Domain Reflectometer And Method Of Using The Same
    10.
    发明申请
    Edge Propagating Optical Time Domain Reflectometer And Method Of Using The Same 审中-公开

    公开(公告)号：US20170307472A1

    公开(公告)日：2017-10-26

    申请号：US15641951

    申请日：2017-07-05

    Applicant: II-VI Incorporated

    Inventor： Aravanan Gurusami ,  Timothy Zahnley ,  Scott Dahl ,  Deepak Devicharan ,  Ian Peter McClean

    IPC: G01M11/00

    Abstract: An OTDR system utilizes a laser source that is turned “on” and kept powered until its light reaches the end of the fiber span being measured (i.e., until the fiber span is fully illuminated). At any point in time after the fiber is fully illuminated, the laser source can be turned “off”. The return (reflected and backscattered) signal is directed into a photodetector of the OTDR, and is measured from the point in time when the fiber span starts to be illuminated. The measurements are made by sampling the return signal at predetermined time intervals—defined as the sampling rate. The created power samples are then subjected to post-processing in the form of a differentiation operation to create a conventional OTDR trace from the collected data.

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