Method and a system for protecting data transmitted on an optical ring formed of a single optical fiber
    11.
    发明授权
    Method and a system for protecting data transmitted on an optical ring formed of a single optical fiber 有权
    用于保护在由单根光纤形成的光环上传输的数据的方法和系统

    公开(公告)号:US06813413B2

    公开(公告)日:2004-11-02

    申请号:US10234125

    申请日:2002-09-05

    IPC分类号: G02B628

    摘要: A method is disclosed of reconfiguring a ring optical network made using a single optical fiber (100). A traffic concentrator (120) and stations (140) are optically connected to the fiber. The concentrator sends a light signal to and receives a light signal from both ends of the fiber using two groups of wavelengths (110, 150) in order to be able to communicate with all the stations. When the network is established, a virtual break (170) is created between two stations. If a real break is detected in the optical fiber, then the virtual break is shifted until it coincides with the real break, thereby enabling traffic to be re-established between the concentrator and the stations. Each station is equipped with a three-state optical switch (400) for changing the direction of the light signals.

    摘要翻译: 公开了一种重新配置使用单个光纤(100)制造的环形光网络的方法。 交通集中器(120)和站(140)光纤连接到光纤。 集中器将光信号发送到光纤两端,并使用两组波长(110,150)接收光信号,以便能够与所有站通信。 当网络建立时,在两个站之间创建虚拟中断(170)。 如果在光纤中检测到真实的中断,则虚拟断点被移动,直到与真实断裂重合,从而使能够在集中器和站之间重新建立业务。 每个站配备有用于改变光信号的方向的三态光开关(400)。

    Analog-to-digital converter with a decision circuit and an optimized decision threshold
    12.
    发明授权
    Analog-to-digital converter with a decision circuit and an optimized decision threshold 失效
    具有决策电路和优化决策阈值的模数转换器

    公开(公告)号:US07564925B2

    公开(公告)日:2009-07-21

    申请号:US11313908

    申请日:2005-12-22

    IPC分类号: H03K9/00 H04B10/06

    CPC分类号: H04L25/063 H03K5/086

    摘要: The device includes a decision circuit (6a) for providing, by comparing the amplitude of a received modulated signal (Sr) to a decision threshold (Vth, Th), a binary signal (Sb) with two states respectively representing first and second binary values that respectively correspond to low and high values of the received signal. A counting module (12) activated during successive time periods calculates a differential numerical value (DN, SDN) representing the algebraic difference between the two numbers of bits of the binary signal that respectively have the second binary value and the first binary value. At the end of each time period, an adjustment module (15) increases or decreases the threshold value (Vth, Th) by an increment (Dth) according to whether the sign (SDN) of the difference is respectively positive or negative. Application in particular to systems for transmitting digital data at high bit rates over optical connections.

    摘要翻译: 该装置包括判定电路(6a),用于通过将接收的调制信号(Sr)的幅度与判定阈值(Vth,Th)进行比较来提供分别表示第一和第二二进制值的两个状态的二进制信号(Sb) 分别对应于接收信号的低和高值。 在连续时间段期间激活的计数模块(12)计算表示分别具有第二二进制值和第二二进制值的二进制信号的两个比特数之间的代数差的差分数值(DN,SDN)。 在每个时间段结束时,根据差值的符号(SDN)是否分别为正或负,调整模块(15)将阈值(Vth,Th)增加或减小增量(Dth)。 特别适用于通过光学连接以高比特率传输数字数据的系统。

    Reconfigurable optical device for controlled insertion/dropping of optical resources
    13.
    发明申请
    Reconfigurable optical device for controlled insertion/dropping of optical resources 审中-公开
    用于光学资源的控制插入/丢弃的可重构光学装置

    公开(公告)号:US20050117906A1

    公开(公告)日:2005-06-02

    申请号:US10999996

    申请日:2004-12-01

    IPC分类号: H04J14/02

    摘要: An optical multiplexer device (D) is dedicated to inserting/dropping optical resources into or from an optical transmission line comprising incoming and outgoing optical fibers (F1, F2). The device (D) comprises: i) first coupler means (C1) having an inlet and an outlet connected respectively to the incoming optical fiber (F1) and to the outgoing optical fiber (F2), and an inlet/outlet (1) coupled to the inlet and the outlet; ii) both-way multiplexer/demultiplexer means (2) defining at least two internal channels (3) each connected to a primary inlet/outlet (ES1) coupled to the inlet/outlet (1) and comprising at least two secondary inlets/outlets (ES2) each connected to an internal channel (3); and iii) at least two send and/or receive modules (R, T) each coupled to a secondary inlet/outlet (ES2) by both-way light guide means (4′) fitted with optical processor means (5, 6) capable, on order, of taking up at least a reflection state reflecting an optical resource to the secondary inlet/outlet (ES2) that delivered it and a transmission state enabling an optical resource to be transferred between a send and/or receive module (R, T) and the associated secondary inlet/outlet (ES2), the optical power that is transmitted or reflected optionally being adjustable.

    摘要翻译: 光复用器(D)专用于将光资源插入光纤传输线或从包括输入和输出光纤(F 1,F 2)的光传输线路中进入或从光传输线路掉落。 装置(D)包括:i)具有分别连接到入射光纤(F 1)和出射光纤(F 2)的入口和出口的第一耦合器装置(C 1)和入口/出口 1)联接到入口和出口; ii)双向多路复用器/解复用器装置(2),其限定至少两个内部通道(3),每个内部通道连接到耦合到入口/出口(1)的主入口/出口(ES 1),并且包括至少两个次级入口/ 每个连接到内部通道(3)的出口(ES 2); 以及iii)至少两个发送和/或接收模块(R,T),每个模块(R,T)通过装配有能够支持的光学处理器装置(5,6)的双向光导装置(4')耦合到次级入口/出口(ES2) 至少将反映光学资源的反射状态占用到传送它的次级入口/出口(ES 2),以及使光源能够在发送和/或接收模块之间传输的传输状态(R ,T)和相关联的次级入口/出口(ES 2),透射或反射的光功率可选地是可调节的。

    Device for measuring and dynamically compensating variations in power loss in an optical transmission line with a supervisory channel, and an associated method
    14.
    发明授权
    Device for measuring and dynamically compensating variations in power loss in an optical transmission line with a supervisory channel, and an associated method 有权
    用于测量和动态补偿具有监控信道的光传输线路中的功率损耗变化的装置,以及相关联的方法

    公开(公告)号:US06891607B2

    公开(公告)日:2005-05-10

    申请号:US10407245

    申请日:2003-04-07

    IPC分类号: G01M11/00 G01N21/00

    CPC分类号: G01M11/33

    摘要: An optical device that measures and dynamically compensates power loss variations in an optical fiber based on supervisory signals. An injector injects supervisory signals having a predefined optical power downstream of the fiber entry end and a detector extracts the supervisory signals at the exit end of the fiber to detect their optical power. Based on the detected optical power and the predefined optical power, the optical power loss of the supervisory signals in the fiber is determined. The optical power loss and the nominal power loss in the fiber are compared to determine a variation in the power loss in the optical fiber. A controller coupled to the detector and to the exit end of the fiber modifies the power of primary signals delivered by the exit end of the fiber as a function of the detected variation in power loss.

    摘要翻译: 一种基于监控信号测量和动态地补偿光纤中的功率损耗变化的光学装置。 注射器注入具有光纤进入端下游的预定光功率的监控信号,并且检测器在光纤的出口处提取监控信号以检测其光功率。 基于检测到的光功率和预定义的光功率,确定光纤中的监控信号的光功率损耗。 比较光功率损耗和光功率损耗,确定光纤功率损耗的变化。 耦合到检测器和光纤的出口端的控制器根据检测到的功率损耗变化来改变由光纤的出口端传送的主信号的功率。

    Reconfigurable optical filtering apparatus and a drop-and-insert multiplexer incorporating such apparatus
    15.
    发明授权
    Reconfigurable optical filtering apparatus and a drop-and-insert multiplexer incorporating such apparatus 失效
    可重配置的光学滤波装置和包含这种装置的插入式和插入式多路复用器

    公开(公告)号:US06292605B1

    公开(公告)日:2001-09-18

    申请号:US09501996

    申请日:2000-02-11

    IPC分类号: G02B6293

    摘要: In particular for selectively dropping and/or inserting channels of a wavelength division multiplex, while minimizing losses, the apparatus includes n stop filters and optical switching means provided with n+1 inlet ports of ranks 0 to n, and n+1 outlet ports of ranks 1 to n+1, as well as a set of waveguides making it possible to couple each outlet port selectively to one of said inlet ports of lower rank. Each filter is provided with first and second opposite ports coupled respectively to an associated outlet port and to an associated inlet port of the same rank. Application to optical transmission, in particular for performing routing operations.

    摘要翻译: 特别是为了选择性地丢弃和/或插入波分复用的信道,同时使损耗最小化,该装置包括n个停止滤波器和具有n + 1个入口端口0至n的n个开关装置,以及n + 1个出口端口 排列1到n + 1,以及一组波导,使得可以选择性地将每个出口端连接到下排的所述入口之一。 每个过滤器设置有分别连接到相关联的出口端口和相同等级的相关联的入口端口的第一和第二相对端口。 适用于光传输,特别是用于执行路由操作。