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    REMOTE LARGER EFFECTIVE AREA OPTICAL FIBER
    2.
    发明授权
    REMOTE LARGER EFFECTIVE AREA OPTICAL FIBER 有权
    远距离有效区域光纤

    公开(公告)号：EP2321679B1

    公开(公告)日：2018-03-21

    申请号：EP09810515.8

    申请日：2009-08-25

    申请人： Neptune Subsea IP Limited

    发明人： CHANG, DO-IL ,  PUC, Andrej, B.

    IPC分类号： G02B6/10 ,  H04B10/2543 ,  H04B10/291

    CPC分类号： H04B10/2543 ,  G02B6/02019 ,  H04B10/2916

    摘要： Embodiments described herein relate to an optical fiber stretch that may experience forward Raman amplification in which the peak optical signal power occurs at some distance from the transmitter. Smaller effective area optical fiber is used at a portion of the optical fiber stretch in which the optical signal power is increasing, while larger effective area optical fiber is used at a more remote stretch of the optical fiber stretch that experiences the peak optical signal power. Thus, the quality of the signal is better preserved since the larger effective area fiber reduces maximum optical signal density thereby reducing non-linear degradations on signal quality.

    A BIDIRECTIONAL AND CONFIGURABLE DIRECTIONAL RAMAN PUMPING APPARATUS
    3.
    发明公开
    A BIDIRECTIONAL AND CONFIGURABLE DIRECTIONAL RAMAN PUMPING APPARATUS 审中-公开
    双向和可配置的方向拉曼泵装置

    公开(公告)号：EP3217574A1

    公开(公告)日：2017-09-13

    申请号：EP16159377.7

    申请日：2016-03-09

    申请人： Xieon Networks S.à r.l.

    发明人： Rapp, Lutz ,  Mestre, Tiago ,  Marques, Carlo ,  Schex, Anton

    IPC分类号： H04B10/291 ,  H01S3/30

    CPC分类号： H04B10/2916 ,  H01S3/06754 ,  H01S3/094011 ,  H01S3/09408 ,  H01S3/0941 ,  H01S3/1312 ,  H01S3/302

    摘要： A Raman pumping device (10) for amplifying a data optical signal in a fiber optic transmission system, comprising first and second ports (12a, 12b) through which the data optical signal may respectively enter and exit the Raman pumping device (10), a Raman pump source (14) for generating a Raman pump signal, and at least one combiner (16) for combining the Raman pump signal with the data optical signal. The Raman pumping device (10) allows for selectively combining the Raman pump signal generated by the same Raman pump source (14), or at least parts of the same Raman pump source (14) codirectionally or counterdirectionally with the data optical signal.

    摘要翻译： 一种用于放大光纤传输系统中的数据光信号的拉曼泵浦装置（10），包括第一和第二端口（12a，12b），数据光信号分别通过第一和第二端口进入和离开拉曼泵浦装置（10）; 用于产生拉曼泵浦信号的拉曼泵浦源（14），以及用于将拉曼泵浦信号与数据光学信号组合的至少一个组合器（16）。 拉曼泵浦装置（10）允许将由同一拉曼泵浦源（14）或同一拉曼泵浦源（14）的至少部分产生的拉曼泵浦信号选择性地与数据光学信号同向或反向地组合。

    OPTICAL REPEATER AND OPTICAL FIBER COMMUNICATION SYSTEM
    4.
    发明公开
    OPTICAL REPEATER AND OPTICAL FIBER COMMUNICATION SYSTEM 审中-公开
    光纤直放站和通信系统

    公开(公告)号：EP3136623A1

    公开(公告)日：2017-03-01

    申请号：EP14891772.7

    申请日：2014-05-14

    申请人： Huawei Marine Networks Co., Limited

    发明人： ZHANG, Wendou

    IPC分类号： H04B10/29

    CPC分类号： H04B10/2914 ,  G02B6/4427 ,  H01S3/06783 ,  H01S3/094015 ,  H01S3/1608 ,  H04B10/29 ,  H04B10/2916

    摘要： Embodiments of the present invention disclose an optical repeater and an optical fiber communications system. An implementation solution of the optical repeater includes: a first input end of the optical repeater, a first output end of the optical repeater, a first erbium doped fiber, a first coupler, a second coupler, and a first pump light processing component, where the first input end of the optical repeater is connected to an input end of the first erbium doped fiber, an output end of the first erbium doped fiber is connected to an input end of the first coupler, a first output end of the first coupler is connected to a first input end of the second coupler, and an output end of the second coupler is connected to the first output end of the optical repeater; an input end of the first pump light processing component is connected to a second input end of the second coupler; and an output end of the first pump light processing component is connected to a second output end of the first coupler. In this solution, when all local-end pump lights fail, a reverse pump light can still enter, which can improve reliability of the optical fiber communications system.

    METHOD AND DEVICE FOR DETERMINING GAIN OF RAMAN OPTICAL AMPLIFIER, AND RAMAN OPTICAL AMPLIFIER
    5.
    发明公开
    METHOD AND DEVICE FOR DETERMINING GAIN OF RAMAN OPTICAL AMPLIFIER, AND RAMAN OPTICAL AMPLIFIER 审中-公开
    方法和设备用于确定增益光拉曼放大器或光喇曼放大器

    公开(公告)号：EP3098980A4

    公开(公告)日：2017-01-04

    申请号：EP14879916

    申请日：2014-01-22

    申请人： HUAWEI TECH CO LTD

    发明人： HUANG YANSUI ,  ZHOU ENBO

    IPC分类号： H04B10/079 ,  H01S3/30

    CPC分类号： H01S3/1302 ,  H01S3/06754 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1306 ,  H01S3/1312 ,  H01S3/30 ,  H01S3/302 ,  H04B10/079 ,  H04B10/2916 ,  H04B10/2931

    摘要： The present invention discloses a method and an apparatus for determining a gain of a Raman optical amplifier and a Raman optical amplifier. The method includes: acquiring present gain parameter information of a Raman optical amplifier; and determining a present gain of a monitoring channel of the Raman optical amplifier according to the present gain parameter information and a correspondence between a gain of the monitoring channel of the Raman optical amplifier and gain parameter information. According to the method and apparatus for determining a gain of a Raman optical amplifier and the Raman optical amplifier that are in embodiments of the present invention, a present gain of a monitoring channel can be accurately determined; therefore, a gain spectrum of the Raman optical amplifier can be accurately monitored, and the gain of the Raman optical amplifier can be accurately adjusted to a target gain. In this way, a communications network fault caused by a change in the gain of the Raman optical amplifier can be avoided, and performance of the Raman optical amplifier can be improved.

    EXCITATION LIGHT SOURCE DEVICE AND OPTICAL TRANSMISSION SYSTEM
    6.
    发明公开
    EXCITATION LIGHT SOURCE DEVICE AND OPTICAL TRANSMISSION SYSTEM 审中-公开
    ÜㄧUN UN TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM TEM

    公开(公告)号：EP3096181A1

    公开(公告)日：2016-11-23

    申请号：EP14878715.3

    申请日：2014-01-16

    申请人： Mitsubishi Electric Corporation

    发明人： IMANISHI, Katsunori ,  TOKURA, Toshiyuki ,  SUEOKA, Hideki ,  TAKATA, Kengo

    IPC分类号： G02F1/35 ,  H04B10/291

    CPC分类号： H04B10/2916 ,  G02B6/264 ,  H04B10/07 ,  H04B10/071 ,  H04B10/0775 ,  H04B10/0791

    摘要： An excitation light source device includes: an excitation light source to generate the Raman excitation light; a light source controller to control an intensity of the Raman excitation light; an amplified spontaneous emission noise measurer to measure an intensity of amplified spontaneous emission noise caused by the Raman excitation light; and a transmission line abnormality analyzer to detect abnormality in the transmission line on a basis of a control state of the light source controller and a measurement result of the amplified spontaneous emission noise measurer. In a state where the abnormality is not detected, the light source controller controls the intensity of the Raman excitation light to gradually increase to a set value. In a state where the abnormality is detected, the light source controller controls the excitation light source to stop or reduce generation of the Raman excitation light.

    摘要翻译： 激发光源装置包括：产生拉曼激发光的激发光源; 光源控制器，用于控制拉曼激发光的强度; 用于测量由拉曼激发光引起的放大的自发发射噪声的强度的放大的自发发射噪声测量器; 以及基于光源控制器的控制状态和放大的自发发射噪声测量器的测量结果来检测传输线中的异常的传输线异常分析器。 在未检测到异常的状态下，光源控制器控制拉曼激发光的强度逐渐增加到设定值。 在检测到异常的状态下，光源控制器控制激发光源来停止或减少拉曼激发光的产生。

    COMMUNICATION APPARATUS AND METHOD
    7.
    发明公开
    COMMUNICATION APPARATUS AND METHOD 有权
    KOMMUNIKATIONSVORRICHTUNG UND VERFAHREN

    公开(公告)号：EP2938014A1

    公开(公告)日：2015-10-28

    申请号：EP13871578.4

    申请日：2013-01-15

    申请人： Huawei Marine Networks Co., Limited

    发明人： ZHANG, Wendou ,  XU, Changwu

    IPC分类号： H04B10/035 ,  H04B10/07

    CPC分类号： H04B10/0777 ,  H04B10/035 ,  H04B10/0779 ,  H04B10/2916 ,  H04B10/2918 ,  H04B10/80 ,  H04B2210/078

    摘要： A communications device is disclosed and includes: a first acquiring unit (10) for acquiring first specific wavelength light and second specific wavelength light from a first optical path; a first receiving unit (30) for converting the first specific wavelength light coming from the first acquiring unit (10) into a first electrical signal; a first control unit (40) for sending a first modulating signal to a first loopback unit (20) according to the first electrical signal coming from the first receiving unit (10); and the first loopback unit (20) for modulating the second specific wavelength light coming from the first acquiring unit (10) according to the first modulating signal, and looping the modulated second specific wavelength light back to a second optical path, where a transmission direction of an optical signal in the second optical path is opposite to a transmission direction of an optical signal in the first optical path. The present invention further discloses a communications method. According to embodiments of the present invention, communication with a terminal-station device can be implemented, without the need of separately providing a light source, and service performance of communications can be effectively ensured.

    摘要翻译： 公开了一种通信设备，包括：第一获取单元（10），用于从第一光路获取第一特定波长光和第二特定波长光; 用于将来自第一获取单元（10）的第一特定波长光转换成第一电信号的第一接收单元（30） 第一控制单元，用于根据来自第一接收单元（10）的第一电信号向第一回送单元（20）发送第一调制信号; 以及用于根据第一调制信号调制来自第一获取单元（10）的第二特定波长光的第一回送单元（20），并将调制的第二特定波长光循环回第二光路，其中传输方向 第二光路中的光信号的光信号与第一光路中的光信号的发送方向相反。 本发明还公开了一种通信方法。 根据本发明的实施例，可以实现与终端站设备的通信，而不需要单独提供光源，并且可以有效地确保通信的业务性能。

    WDM, multiple wavelength pumped, Raman amplifier
    9.
    发明公开
    WDM, multiple wavelength pumped, Raman amplifier 审中-公开
    Raman-VerstärkerzumWellenlängenmultiplexenmitMultiwellenlängenPumpquelle

    公开(公告)号：EP2755289A2

    公开(公告)日：2014-07-16

    申请号：EP14154548.3

    申请日：2001-01-11

    申请人： The Furukawa Electric Co., Ltd.

    发明人： Emori, Yoshihiro ,  Namiki, Shu

    IPC分类号： H01S3/30 ,  H01S3/094 ,  H01S3/23 ,  H04B10/291

    CPC分类号： H04B10/2916 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/09408 ,  H01S3/094096 ,  H01S3/10007 ,  H01S3/302 ,  H01S2301/04

    摘要： A Raman amplifier comprises a pump source (10) configured to produce pumping wavelengths divided into a short wavelength side group and a long wavelength side group, a boundary between the short wavelength side group and the long wavelength side group being defined by a longest interval between any two adjacent pumping wavelengths. The short wavelength side group includes two or more pumping wavelengths having substantially equidistant intervals therebetween, e.g. 1 THz, that are shorter than the longest interval, e.g. 2 THz or more. The long wavelength side group includes not more than two pumping wavelengths. The pump source (10) is configured to adjust a level of at least one of the short wavelength side group and the long wavelength side group so as to impart a predetermined tilt to a composite gain profile.

    摘要翻译： 拉曼放大器包括被配置为产生被分成短波长侧组和长波长侧组的泵浦波长的泵浦源（10），短波长侧组与长波长侧组之间的边界由 任何两个相邻的泵浦波长。 短波长侧组包括两个或更多个泵浦波长，其间具有基本上等距的间隔，例如， 1 THz，其比最长间隔短，例如 2 THz以上。 长波长侧组包括不超过两个泵浦波长。 泵浦源（10）被配置为调整短波长侧组和长波长侧组中的至少一个的电平，以便对复合增益分布施加预定的倾斜。