System for measuring and/or dynamically controlling power loss in an optical transmission line, and an associated method
    1.
    发明授权
    System for measuring and/or dynamically controlling power loss in an optical transmission line, and an associated method 有权
    用于测量和/或动态地控制光传输线路中的功率损耗的系统,以及相关联的方法

    公开(公告)号:US06850319B2

    公开(公告)日:2005-02-01

    申请号:US10406235

    申请日:2003-04-04

    CPC分类号: H04B10/077 H04B10/07955

    摘要: An optical system dynamically measures power loss in an optical fiber (2) having an entry end (E) adapted to receive optical signals and an exit end (S) adapted to deliver the signals. The system comprises modulation means (4) upstream from the entry end (E) and adapted to modulate the amplitude of the optical signals with a low-frequency modulation signal having a modulation index inversely proportional to the input power (Pe) of the optical signals, and detection means (7) downstream from the exit end (S) and adapted to extract from the modulated optical signals primary information representative of the output amplitude of the modulation signal and to deduce from the primary information secondary information representative of a variation in the power loss in the fiber.

    摘要翻译: 光学系统动态地测量具有适于接收光信号的入口端(E)的光纤(2)中的功率损耗和适于传送信号的出口端(S)。 该系统包括从入口端(E)上游的调制装置(4),并且适于用具有与光信号的输入功率(Pe)成反比的调制指数的低频调制信号来调制光信号的振幅 ,以及检测装置(7),其出口端(S)的下游并适于从调制的光信号中提取表示调制信号的输出幅度的主要信息,并从主信息中推断代表 光纤中的功率损耗。

    Device for measuring and dynamically compensating variations in power loss in an optical transmission line with a supervisory channel, and an associated method
    2.
    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。

    Dynamic control of power loss in an optical fiber by contrapropagation of a supervisory channel
    3.
    发明申请
    Dynamic control of power loss in an optical fiber by contrapropagation of a supervisory channel 审中-公开
    通过监控通道的转移动态控制光纤中的功率损耗

    公开(公告)号:US20050041969A1

    公开(公告)日:2005-02-24

    申请号:US10919263

    申请日:2004-08-17

    CPC分类号: H04B10/0775 H04B2210/078

    摘要: An optical system is dedicated to dynamically measuring power loss in an optical fiber (FO) having a first end (E1) and a second end (E2) respectively adapted to receive and to send primary optical signals. The system comprises injection means (3) adapted to inject supervisory signals into the second end (E2) of the optical fiber (FO) at a selected optical power and detection means (5) adapted to extract the supervisory signals at the first end (E1) of the optical fiber (FO) in order to determine their optical power and to deduce therefrom and from the selected optical power primary information representative of the optical power loss of the supervisory signals in the optical fiber (FO), and where applicable to compare the primary information to a value representative of a nominal power loss in the optical fiber (FO) in order to supply secondary information representative of a variation of the power loss in the optical fiber.

    摘要翻译: 光学系统专用于动态测量具有分别适于接收和发送主要光信号的第一端(E1)和第二端(E2)的光纤(FO)中的功率损耗。 该系统包括适于在所选光功率下将监控信号注入光纤(FO)的第二端(E2)的注入装置(3)和适于在第一端提取监控信号的检测装置(5) ),以便确定它们的光功率并从其中推导出代表光纤(FO)中的监控信号的光功率损耗的所选择的光功率主信息,以及适用于比较 将主要信息提供给表示光纤(FO)中的额定功率损耗的值,以便提供表示光纤中功率损耗变化的次要信息。

    Analog-to-digital converter with a decision circuit and an optimized decision threshold
    4.
    发明申请
    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:US20060140306A1

    公开(公告)日:2006-06-29

    申请号:US11313908

    申请日:2005-12-22

    IPC分类号: H04L27/22

    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)进行比较来提供具有两个状态的二进制信号(Sb)的判定电路(6a),分别表示第一和第二二进制 分别对应于接收信号的低和高值的值。 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。

    Compact and reconfigurable optical device for controlled insertion/dropping of optical resources
    5.
    发明申请
    Compact and reconfigurable optical device for controlled insertion/dropping of optical resources 失效
    用于光学资源的控制插入/丢弃的紧凑和可重新配置的光学装置

    公开(公告)号:US20050185886A1

    公开(公告)日:2005-08-25

    申请号:US10999965

    申请日:2004-12-01

    IPC分类号: H04J14/02 G02B6/28

    CPC分类号: H04J14/0213 H04J14/021

    摘要: An optical multiplexer device (D) is dedicated to inserting/dropping optical resources for an optical transmission line comprising an upstream fiber (F1) and a downstream fiber (F2). The device (D) comprises: i) first and second OMADs (M1, M2) each having a first primary inlet/outlet (EP1, EP3) connected to the upstream fiber (F1) or to the downstream fiber (F2), and to L internal demultiplexing channels (VI11, VI21) connected to L first secondary inlets/outlets (ES11, ES21), and a second primary inlet/outlet (EP2, EP4) connected to M internal multiplexing channels (VI12, VI22) connected to M second secondary inlets/outlets (ES12, ES22) connected to M or N send or receive modules (Tx, Rx); ii) L external coupling channels (VEC) interconnecting the L first secondary inlets/outlets (ES11, ES21), and each fitted with a respective VOA (MT) capable, on order, of placing itself in a through state or in a blocking state for allowing or preventing an optical resource to be transferred between the first and second OMADs (M1, M2); and iii) an external drop channel (VEE) connected to the upstream fiber (F1) and to the primary inlet/outlet (EP4) of the second OMAD (M2), and an external insert channel (VEI) connected to the downstream fiber (F2) and to the second primary inlet/outlet (EP2) of the first OMAD (M1).

    摘要翻译: 光复用器(D)专用于插入/丢弃包括上游光纤(F 1)和下游光纤(F 2)的光传输线路的光资源。 装置(D)包括:i)第一和第二OMAD(M 1,M 2),每个具有连接到上游纤维(F 1)或下游纤维(F 1)的第一主入口/出口(EP 1,EP 3) F 2)和连接到L个第一次级入口/出口(ES11,ES21)的L个内部解复用通道(VI 11,VI 21)和连接到M的第二主入口/出口(EP 2,EP 4) 连接到连接到M或N发送或接收模块(Tx,Rx)的M个第二次入口/出口(ES 12,ES 22)的内部复用通道(VI 12,VI 22) ii)将L个第一入口/出口(ES11,ES21)互连的L个外部耦合通道(VEC),并且各自配备相应的VOA(MT),其能够依次将其置于通过状态或者以 阻塞状态,用于允许或防止在第一和第二OMAD(M 1,M 2)之间传输光学资源; 以及iii)连接到第二OMAD(M 2)的上游光纤(F 1)和主入口/出口(EP 4)的外部下降通道(VEE)和连接到第二OMAD 下游纤维(F 2)和第一OMAD(M 1)的第二主入口/出口(EP 2)。

    Compact and reconfigurable optical device for controlled insertion/dropping of optical resources
    7.
    发明授权
    Compact and reconfigurable optical device for controlled insertion/dropping of optical resources 失效
    用于光学资源的控制插入/丢弃的紧凑和可重新配置的光学装置

    公开(公告)号:US07167610B2

    公开(公告)日:2007-01-23

    申请号:US10999965

    申请日:2004-12-01

    IPC分类号: G02B6/28

    CPC分类号: H04J14/0213 H04J14/021

    摘要: An optical multiplexer device is dedicated to inserting/dropping optical resources for an optical transmission line comprising an upstream fiber and a downstream fiber. The device comprises: first and second OMADs each having a first primary inlet/out1et connected to the upstream or downstream fiber, and to L internal demultiplexing channels connected to L first secondary inlets/outlets, and a second primary inlet/outlet connected to M internal multiplexing connected to M second secondary inlets/outlets, connected to M send or receive modules L external coupling channels interconnecting the L first secondary inlets/outlets, and each fitted with a respective VOA capable of placing itself in a through or blocking state for allowing or preventing an optical resource to be transferred between OMADs; and an external drop or insert channel connected to the upstream or downstream fiber, respectively, and to the first primary or second primary inlet/outlet of the second or first OMAD, respectively.

    摘要翻译: 光复用器装置专用于插入/丢弃包括上游光纤和下行光纤的光传输线路的光资源。 该装置包括:第一和第二OMAD,每个具有连接到上游或下游光纤的第一初级入口/外部,以及连接到L个第一次级入口/出口的L个内部解复用通道,以及连接到M内部的第二主入口/出口 连接到M个连接到M个发送或接收模块的M个第二次入口/出口的多路复用器L互连L个第一次级入口/出口的外部耦合通道,并且各自配备有能够将其自身置于通过或阻塞状态的相应VOA, 防止光学资源在OMAD之间传输; 以及分别连接到上游或下游纤维以及分别连接到第二或第一OMAD的第一主入口/第二主入口/出口的外部液滴或插入通道。

    Method and a system for monitoring the transmission of optical signals
    8.
    发明授权
    Method and a system for monitoring the transmission of optical signals 有权
    用于监测光信号传输的方法和系统

    公开(公告)号:US07295775B2

    公开(公告)日:2007-11-13

    申请号:US10411312

    申请日:2003-04-11

    IPC分类号: H04B10/08 H04J14/00 H04J14/02

    摘要: The present invention relates to a method of monitoring the transmission of optical signals including a step of inserting a monitoring signal (S) more particularly suited to monitoring the quality of service. During the transmission of optical signals each carried by a predefined wavelength defining a transmission channel (Ci), said signals are grouped onto the same fiber in a band (B) of channels. The method then includes a step of simultaneously modulating said signals grouped in the band of channels using the monitoring signal to be transmitted, so that each of the signals constitutes a carrier of the monitoring signal.

    摘要翻译: 本发明涉及一种监测光信号传输的方法,包括插入更特别适用于监视服务质量的监视信号(S)的步骤。 在传输光信号的传输期间,每个由定义传输信道(C i)的预定义波长传送的光信号,所述信号被分组到信道频带(B)中的相同光纤上。 该方法然后包括使用要发送的监视信号同时调制分组在信道频带中的信号的步骤,使得每个信号构成监视信号的载波。

    System for optical demultiplexing wavelength bands
    9.
    发明申请
    System for optical demultiplexing wavelength bands 有权
    光解复用波段的系统

    公开(公告)号:US20050238283A1

    公开(公告)日:2005-10-27

    申请号:US10491147

    申请日:2002-09-26

    摘要: An optical demultiplexer system for separating adjacent wavelength bands without losing inter-band channels and comprising a first filter stage (210) of relatively narrow passband and relatively high selectivity in order to extract all of the inter-band channels. The first stage is followed by a second filter stage (240) of relatively broad passband and relatively low selectivity to extract the wavelength bands delivered by the first filter stage. Such a system makes it possible to use the inter-band channels, in particular for managing the network and the wavelength bands.

    摘要翻译: 一种光解复用器系统,用于分离相邻的波段而不丢失带间信道,并且包括相对窄的通带和相对高的选择性的第一滤波器级(210),以便提取所有的带间信道。 第一阶段之后是相对宽的通带和相对低的选择性的第二滤波器级(240),以提取由第一滤波器级传送的波长带。 这样的系统使得可以使用带间信道,特别是用于管理网络和波段。

    Method and a system for protecting data transmitted on an optical ring formed of a single optical fiber
    10.
    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)。