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    • 3. 发明公开
    • Optical network element, optical network, and method of operating an optical network
    • 一种光网络单元,光网络和方法,用于操作光学网络
    • EP2299612A1
    • 2011-03-23
    • EP09011836.5
    • 2009-09-17
    • ADVA AG Optical Networking
    • Grobe, Klaus, Dr.
    • H04B10/213H04B10/00H04J14/02
    • H04J14/02H04B10/275H04B10/807H04J14/0282H04J14/0283H04J14/029H04J14/0291
    • The invention relates to an optical network element (100; 300'), particularly optical line terminal, OLT, or remote node, RN, for transmitting and/or receiving data via an optical network (200) that comprises at least one optical fiber link (210), wherein said optical network element (100; 300') has a primary optical interface (110; 310) configured to be connected with said optical fiber link (210) to transmit and/or receive data to/from said optical network (200).
      The inventive optical network element (100) is characterized by at least one secondary optical interface (120a, 120b; 320a, 320b) configured to provide optical pump power (PPa, PPb) to at least one further network element (RN5, RN10; RNa, RNr) via a further optical fiber link (220a, 220b; 220g, 220h), preferably a dedicated pump fiber link, thus enabling true scalability of the optical network (200) regarding network size, particularly link length and the number of remote nodes.
    • 本发明涉及一种在光网络元件(100; 300“),特别是光线路终端OLT,其或远程节点,RN,用于发送和/或在光学网络(200)通过接收数据确实包括至少一个光纤链路 (210),worin所述光网络元件(100; 300“)具有主光接口(110; 310)构造成与所述光纤链路(210)被连接到发射和/或从所述光网络接收数据到/ (200)。 配置成提供光泵浦功率(PPA,PPB)到至少一个另外的网络元件(RN5,RN10;本发明的光学网络元件(100)由至少一个次级光学接口(320A,320B 120A,120B);其特征在于RNA ,CNO)经由另一个光纤链路(220A,220B;220克,220H),优选的专用泵光纤链路,从而使关于网络规模,特别是连杆长度和远程节点的数量的光网络(200)的真实的可扩展性 ,
    • 4. 发明公开
    • A protected optical single-fiber WDM system
    • GeschütztesOptisches Einzelfaser-WDM-System
    • EP2768173A1
    • 2014-08-20
    • EP13000761.0
    • 2013-02-14
    • ADVA AG Optical Networking
    • Eiselt, Michael, Dr.-Ing.Grobe, Klaus, Dr.Elbers, Jörg-Peter, Dr.-Ing.
    • H04J14/02
    • H04J14/0216H04J14/0213H04J14/0279H04J14/0283H04J14/0294H04J14/0295H04J14/0297
    • The invention relates to a protected optical single-fiber WDM system. A first (3) and a second (5) head-end terminal and at least one optical add/drop filter device (11) are connected to form a chain-like transmission path, each of the first and second head-end terminals (3, 5) being connected, at a WDM port (3a, 5a), through a single optical fiber (13) to a western (11a) or an eastern WDM port (11d) of an adjacent one of the optical add/drop filter devices (11), respectively, and each of the optical add/drop filter devices (11) being connected, at an eastern or western WDM port (11d, 11a), to a western or eastern WDM port (11a, 11d) of an adjacent one of the optical add/drop filter devices (11), respectively. At least one tail-end terminal (9) is connected to each optical add/drop filter device (11), wherein a first (9a) and a second (9b) channel port of the respective add/drop tail-end terminal (9) is connected to a dedicated first (11 b) and second (11 c) channel port of the optical add/drop filter device (11) through a respective optical fiber (15,17). The head-end terminals (3, 5), the optical add/drop filter devices (11) and the tail-end terminals (9) are adapted to selectively or simultaneously establish a bidirectional communication between each tail-end terminal (9) and the first and second head-end terminal (3, 5), wherein each tail-end terminal (9) bidirectionally communicates through its first channel port (9a) with the first head-end terminal (3) and bidirectionally communicates through its second channel port (9b) with the second head-end terminal (5), one of these communication paths serving as a working communication path and the other of these communication paths serving as a protection path, wherein for the communication between each of the tail-end terminals (9) and the first and second head-end terminal (3, 5), respectively, dedicated optical channel signals lying in a first wavelength band and a second wavelength band are used for each transmission direction, the first and second wavelength band revealing no overlap and the optical channel signals in each wavelength band forming, in each transmission direction in the chain-like transmission path, respective optical WDM signals.
    • 本发明涉及一种受保护的光纤单纤维WDM系统。 连接第一(3)和第二(5)头端子和至少一个光学分插滤波器装置(11)以形成链式传输路径,第一和第二头端终端 在WDM端口(3a,5a)通过单个光纤(13)连接到相邻的一个光学分插滤波器的西部(11a)或东部WDM端口(11d)之间, (11),并且在东部或西部WDM端口(11d,11a)处将每个光学分插滤波器装置(11)连接到西部或西部WDM端口(11a,11d) 相邻的一个光学分插滤波器装置(11)。 至少一个尾端终端(9)连接到每个光分插滤波器装置(11),其中相应的分插尾端子(9)的第一(9a)和第二(9b)通道端口 )通过相应的光纤(15,17)连接到光学分插滤波器装置(11)的专用第一(11b)和第二(11c)通道端口。 前端终端(3,5),光分插滤波器装置(11)和尾端终端(9)适于选择性地或同时地建立每个尾端终端(9)和 第一和第二前端终端(3,5),其中每个尾端终端(9)通过其第一通道端口(9a)与第一头端终端(3)双向通信,并且通过其第二通道双向通信 端口(9b)与第二头端终端(5)之间,这些通信路径中的一个用作工作通信路径,并且这些通信路径中的另一个用作保护路径,其中对于每个尾端 终端(9)和第一和第二前端终端(3,5)分别用于每个传输方向的第一波长带和第二波段的专用光信道信号,第一和第二波段显示 没有重叠 并且每个波长带中的光信道信号在链式传输路径中的每个传输方向上形成各自的光WDM信号。