A METHOD FOR PROTECTING A LINK IN AN OPTICAL NETWORK

    公开(公告)号:US20190081845A1

    公开(公告)日:2019-03-14

    申请号:US16083717

    申请日:2017-03-22

    Abstract: Enclosed herewith is a method for protecting a link in an optical network configured for transmitting digital data employing a predetermined modulation format which comprises a number of symbols in a constellation diagram. A binary address is associated with each symbol. The modulation format allows for a constellation distortion, according to which the relative positions of constellation points in the constellation diagram are varied in a predetermined way by a predetermined degree. The method comprises the steps of: A) partitioning the traffic in two or more priority classes, B) mapping higher priority traffic to predefined bit positions within the binary symbol addresses, C) evaluating the quality of a predetermined protection link, D) determining a degree of distortion such that a desired transmission quality for the transmission of the traffic of the highest priority class or classes via said predetermined protection link and a desired transmission quality for the full traffic via said given link are simultaneously ensured, and E) employing said distorted constellation diagram for transmission of digital data over said given link.

    A METHOD AND SYSTEM FOR ASSIGNING PERFORMANCE INDICATORS TO OBJECTS OF A NETWORK

    公开(公告)号:US20170373750A1

    公开(公告)日:2017-12-28

    申请号:US15540906

    申请日:2015-12-18

    Abstract: A method of assigning performance indicators to objects of a network employing a computation to assign performance indicators to said objects of said network such that a sum of said performance indicators of objects along a given path in said network in relation to a first threshold value indicates whether said path fulfils a predetermined criterion, and/or indicates whether said path does not fulfil said predetermined criterion.A method of evaluating a performance of a path in a network based on the performance indicators involves the steps of calculating a sum of performance indicators for said objects along said path and evaluating a performance of said path by comparing said sum against a first threshold value.

    DUAL PARALLEL MACH-ZEHNDER-MODULATOR DEVICE WITH PRE-DISTORTED DRIVING VOLTAGES
    33.
    发明申请
    DUAL PARALLEL MACH-ZEHNDER-MODULATOR DEVICE WITH PRE-DISTORTED DRIVING VOLTAGES 审中-公开
    具有预失真驱动电压的双并联MACH-ZEHNDER-MODULATOR设备

    公开(公告)号:US20170054511A1

    公开(公告)日:2017-02-23

    申请号:US15119072

    申请日:2015-03-12

    Abstract: Disclosed herein is a dual parallel Mach-Zehnder-modulator (DPMZM) device comprising a DPMZM 10 having first and second inner MZMs arranged parallel to each other. The first inner MZM generates an in-phase component EI of an optical signal in response to a first driving voltage VI, and the second inner MZM generates a quadrature component EQ of said optical signal in response to a second driving voltage VQ. Further disclosed is a calculation unit 52 configured for receiving an in-phase component yI and a quadrature component yQ_ of a desired base-band signal, and for calculating pre-distorted first and second driving voltages VI, VQ. The calculation of the pre-distorted first and second driving voltages VI, VQ is based on a model of said DPMZM 10 accounting for I-Q cross-talk, and using an algorithm that determines said first and second driving voltages VI, VQ each as a function of both of said in-phase and quadrature components yI, yQ of said base-band signal.

    Abstract translation: 本文公开了一种双并联马赫 - 曾德尔调制器(DPMZM)装置,其包括具有彼此平行布置的第一和第二内部MZM的DPMZM 10。 第一内部MZM响应于第一驱动电压VI产生光学信号的同相分量EI,并且第二内部MZM响应于第二驱动电压VQ产生所述光学信号的正交分量EQ。 还公开了一种计算单元52,被配置为接收期望的基带信号的同相分量yI和正交分量yQ_,并且用于计算预失真的第一和第二驱动电压VI,VQ。 预失真的第一和第二驱动电压VI,VQ的计算基于所述DPMZM 10的IQ串扰模型,并且使用将所述第一和第二驱动电压VI,VQ分别确定为功能的算法 所述基带信号的所述同相和正交分量yI,yQ。

    Optical network unit
    34.
    发明授权
    Optical network unit 有权
    光网络单元

    公开(公告)号:US09401764B2

    公开(公告)日:2016-07-26

    申请号:US14350736

    申请日:2012-10-09

    Abstract: The present invention provides an apparatus, in particular an optical network unit, which comprises a first part operably coupled to an arm of an optical fiber network, the first part comprises an optical module including an optical-electric interface and/or an electric-optical interface locked on a preset wavelength band, and an interface module, and at least one second part operably coupled to a network entity of a communication network, each comprising a control unit, a signal processing unit and an interface module. One of the control units of the at least one second part is set by a optical line terminal of the optical fiber network as a master control unit configured to tune and control the optical module of the first part. The first part and the at least one second part are wireless coupled with respect to each other via the interface modules.

    Abstract translation: 本发明提供了一种装置,特别是光网络单元,其包括可操作地耦合到光纤网络的臂的第一部分,第一部分包括光学模块,该光学模块包括光电接口和/或电光学 接口锁定在预设波长带上,以及接口模块,以及可操作地耦合到通信网络的网络实体的至少一个第二部分,每个包括控制单元,信号处理单元和接口模块。 至少一个第二部分的控制单元中的一个由光纤网络的光线路终端设置为主控制单元,该主控制单元被配置为调整和控制第一部分的光学模块。 第一部分和至少一个第二部分经由接口模块相对于彼此无线耦合。

    OPTICAL FIBER RIBBONIZATION APPARATUS AND METHOD
    38.
    发明申请
    OPTICAL FIBER RIBBONIZATION APPARATUS AND METHOD 审中-公开
    光纤加工装置及方法

    公开(公告)号:US20150059412A1

    公开(公告)日:2015-03-05

    申请号:US14390198

    申请日:2013-04-05

    Inventor: Sugianto Wonoadi

    CPC classification number: G02B6/2555 G02B6/2553 G02B6/2558

    Abstract: Method of ribbonizing a plurality of optical fibers (103) and ribbonizing apparatus for optical fibers, comprising a tablet (101) including fiber aligning means (104, 105) for aligning a plurality of optical fibers (103) in parallel, the ribbonizing apparatus being configured to be movably arranged in a splicing apparatus (102) when the plurality of optical fibers (103) is aligned in the tablet (101), and to be removed from the splicing apparatus (102) after a splicing process, so that the plurality of optical fibers (103) is not damaged due to mechanical stress.

    Abstract translation: 将多根光纤(103)和用于光纤的带状装置进行带带化的方法,包括:平板(101),包括用于平行对准多根光纤(103)的光纤对准装置(104,105)的片剂(101),所述带状装置 被配置为当所述多个光纤(103)在所述图形输入板(101)中对准时可移动地布置在拼接装置(102)中,并且在拼接处理之后从所述拼接装置(102)移除,使得所述多个 的光纤(103)由于机械应力而不被损坏。

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