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公开(公告)号：US5675688A
公开(公告)日：1997-10-07
申请号：US643095
申请日：1996-05-02
IPC分类号： G02B6/028 , G02B20060101 , G02B6/036 , G02B6/26
CPC分类号： G02B6/02014 , G02B6/02276 , G02B6/0281 , G02B6/03611 , G02B6/03644 , G02B6/02271
摘要： Dispersion-shifted monomode optical fibers have an effective mode surface area greater than 65 .mu.m.sup.2 by optimization of the geometrical characteristics that characterize the fibers.
摘要翻译： 通过优化表征纤维的几何特性，色散位移单模光纤具有大于65μm2的有效模式表面积。
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公开(公告)号：US5612808A
公开(公告)日：1997-03-18
申请号：US607554
申请日：1996-02-27
CPC分类号： H04B10/25077
摘要： Light pulses carrying data in binary form to be transmitted are injected into a transoceanic line fiber in which they pass through amplifiers imparting Gordon-Haus jitter to them. In accordance with the invention, a compensation fiber is disposed at the output of the line fiber so as to apply negative chromatic dispersion to the pulses so as to compensate their jitter in part before they are processed in a receiver. The invention applies to telecommunications.
摘要翻译： 携带要传输的二进制数据的光脉冲被注入到跨洋线光纤中，在其中它们通过放大器给它们赋予戈登 - 豪斯抖动。 根据本发明，补偿光纤设置在线路光纤的输出处，以对脉冲施加负色散，以便在接收机处理之前部分地补偿它们的抖动。 本发明适用于电信。
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公开(公告)号：US5659649A
公开(公告)日：1997-08-19
申请号：US637784
申请日：1996-05-02
IPC分类号： G02B6/028 , G02B20060101 , G02B6/036 , G02B6/26 , G02B6/18
CPC分类号： G02B6/02014 , G02B6/02276 , G02B6/0281 , G02B6/03611 , G02B6/03644 , G02B6/02271
摘要： Dispersion-shifted monomode optical fibers have an effective mode surface area greater than 65 .mu.m.sup.2 by optimization of the geometrical characteristics that characterize the fibers. The fibers have substantially zero chromatic dispersion in the vicinity of 1.55 .mu.m, and they include an optical core having a central portion, a first layer having an index lower than the index of the central portion, and a second layer having an index higher than the index of the first layer and higher than the index of the optical cladding.
摘要翻译： PCT No.PCT / FR95 / 01121 Sec。 371日期：1996年5月2日 102（e）日期1996年5月2日PCT提交1995年8月25日PCT公布。 公开号WO96 / 07942 日期1996年3月14日通过优化纤维表征的几何特性，分散位移单模光纤具有大于65μm2的有效模式表面积。 纤维在1.55μm附近具有基本上为零的色散，并且它们包括具有中心部分的光学芯，具有低于中心部分的折射率的折射率的第一层，以及指数高于 第一层的折射率高于光学包层的折射率。
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公开(公告)号：USRE37457E1
公开(公告)日：2001-11-27
申请号：US09158145
申请日：1998-09-22
IPC分类号： G02B626
CPC分类号： G02B6/02014 , G02B6/02271 , G02B6/02276 , G02B6/0281 , G02B6/03611 , G02B6/03644
摘要： Dispersion-shifted monomode optical fibers have an effective mode surface area greater than 65 &mgr;m2 by optimization of the geometrical characteristics that characterize the fibers.
摘要翻译： 通过优化表征纤维的几何特征，色散位移单模光纤具有大于65mum2的有效模式表面积。
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5.发明授权Optical communication link with correction of non-linear effects and optical signal processing method 失效光通信链路具有校正非线性效应和光信号处理方法
公开(公告)号：US5355240A
公开(公告)日：1994-10-11
申请号：US937698
申请日：1992-09-01
CPC分类号： H04B10/2525 , H04B2210/252
摘要： An optical communication link with correction of non-linear effects comprises an optical fiber transmission line subject to chromatic dispersion and non-linear effects and correction means for limiting the disadvantageous consequences of this dispersion and/or these non-linear effects. The correction means comprise at the output of the transmission line a dispersion compensator adapted to apply dispersion in the opposite direction to and of lower absolute value than the dispersion due to the transmission line.
摘要翻译： 具有校正非线性效应的光通信链路包括经受色散和非线性效应的光纤传输线，以及用于限制该色散和/或这些非线性效应的不利后果的校正装置。 校正装置包括在传输线的输出处，色散补偿器适于与由于传输线而产生的色散相反的方向施加与绝对值相对的绝对值的偏移。
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6.发明授权Network element for use in an optical communication network, in particular a DWDM communication network 有权用于光通信网络的网络元件，特别是DWDM通信网络公开(公告)号：US07277648B2
公开(公告)日：2007-10-02
申请号：US10824484
申请日：2004-04-15
CPC分类号： H04J14/02 , H04L1/0003
摘要： The present invention relates to an optical communication network and to a network element for use in such a network. The network element comprises a plurality of receivers (70-76) for receiving optical communication signals, a plurality of transmitters (54-62, 82-86) for transmitting optical communication signals, and a plurality of network connections, each network connection having an individual signal impairment characteristic. The pluralities of receivers (70-76) and transmitters (54-62, 82-86) are adapted to employ a plurality of different modulation schemes (64, 66). Furthermore, the pluralities of receivers (70-76) and transmitters (54-62, 82-86) are assigned to the network connections as a function of the individual signal impairment characteristics.
摘要翻译： 本发明涉及光通信网络和用于这种网络的网元。 网元包括用于接收光通信信号的多个接收机（70-76），用于发送光通信信号的多个发射机（54-62,88-86）和多个网络连接，每个网络连接具有 个体信号障碍特征。 多个接收器（70-76）和发送器（54-62,82-86）适于采用多个不同的调制方案（64,66）。 此外，多个接收器（70-76）和发射器（54-62,82-86）被分配给作为各个信号损伤特性的函数的网络连接。
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公开(公告)号：US20050175340A1
公开(公告)日：2005-08-11
申请号：US11017934
申请日：2004-12-22
申请人： Denis Penninckx , Olivier Audouin , Pierre Peloso
发明人： Denis Penninckx , Olivier Audouin , Pierre Peloso
CPC分类号： H04L43/0823 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04L45/00
摘要： The routes for transmitting optical signals between the nodes (N1-N6) of a transparent network are selected according to the estimated error rate (ERe) values presented by the signals received after being transmitted along these routes. To limit the number of measurements to be made before the network is commissioned, a function (G) relating to the parameters characteristic of the network's optical links is used. This function is an interpolation function providing, for each set (QoT) of parameters associated with a given route, a corresponding estimated error rate (ERe) value. To evaluate the accuracy of the interpolation, during the network's operation, error rate measurements are performed, relating to signals effectively transmitted along given routes, and these measurements serve either to readjust the margin of uncertainty to be applied to exploit the estimated error rates (ERe), or to modify the function (G) to improve its interpolation accuracy.
摘要翻译： 根据在沿着这些路由发送之后接收的信号所呈现的估计误码率（ERe）值来选择在透明网络的节点（N 1 -N 6）之间发送光信号的路由。 为了限制在网络调试之前进行的测量次数，使用与网络光链路的参数特性相关的功能（G）。 该功能是针对与给定路由相关联的参数的每个集合（QoT）提供相应的估计误码率（ERe）值的内插函数。 为了评估内插的准确性，在网络运行期间，执行与沿着给定路由有效传输的信号相关的误码率测量，并且这些测量用于重新调整要应用的不确定性余量以利用估计的误码率（ERe ）或修改功能（G）以提高其插值精度。
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8.发明授权
公开(公告)号：US5367396A
公开(公告)日：1994-11-22
申请号：US947463
申请日：1992-09-21
IPC分类号： H04J14/00 , H01S5/0687 , H04B10/145 , H04B10/155 , H04B10/207 , H04J14/02 , H04B17/00
CPC分类号： H04J14/02 , H01S5/0687 , H04B10/2725 , H04B10/50 , H04B10/506 , H04B10/508 , H04B10/572
摘要： In an optical frequency marking method and a frequency channel communication network using this method, an optical reference frequency is scanned across a scanning band to produce frequency coincidences with a monitored frequency which constitutes the frequency to be marked. During each scanning half-cycle it effects a go path and a return path according to a known law to produce a go frequency coincidence and a return frequency coincidence. A marker interval is measured which is the time elapsed between said two coincidences. This interval marks the monitored frequency and enables said frequency to be locked by comparison with a set point interval. The invention finds a particular application in the marking and stabilization of carrier frequencies of a closely-spaced different frequency channel network.
摘要翻译： 在使用这种方法的光频标记方法和频道通信网络中，跨扫描频带扫描光学参考频率，以产生频率一致性，其中所构成的频率将被标记。 在每个扫描半周期期间，它根据已知定律实现去路和返回路径以产生去频率重合和返回频率重合。 测量标记间隔，其是所述两个巧合之间经过的时间。 该间隔标记所监视的频率，并且通过与设定点间隔进行比较来使所述频率被锁定。 本发明在紧密间隔不同的频道网络的载波频率的标记和稳定中发现了特定的应用。
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公开(公告)号：US5327423A
公开(公告)日：1994-07-05
申请号：US825156
申请日：1992-01-24
IPC分类号： H04J14/00 , H04B10/272 , H04J1/00 , H04J14/02 , H04Q11/00
CPC分类号： H04Q11/0001 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0282
摘要： According to the invention, messages to be transmitted between user terminals interconnected by a transmission network are classified into "heavyweight" messages and "lightweight" messages. The heavyweight messages, i.e. messages containing a large quantity of data, are transmitted over the network in message frequency channels attributed to respective heavyweight messages, while the lightweight messages are transmitted over a shared channel common to the lightweight messages.
摘要翻译： 根据本发明，由传输网络互连的用户终端之间要发送的消息被分类为“重量级”消息和“轻量级”消息。 重量级消息，即包含大量数据的消息，通过归因于相应重量级消息的消息频率信道中的网络传输，而轻量级消息通过轻量级消息共同的共享信道发送。
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公开(公告)号：US5307191A
公开(公告)日：1994-04-26
申请号：US825143
申请日：1992-01-24
CPC分类号： H04Q11/0001 , H04J14/02
摘要： Calls are made in known manner between terminals in the form of information-carrying modulation applied to emission waves that travel along common transmission lines. An emission frequency (F(2P-1)) is allocated to each terminal for each call. According to the invention, a marking wave is supplied to all of the terminals while no call is yet being set up, thereby marking an emission frequency. When a new call is being set up, the marked frequency is allocated for the new call to at least one of the terminals that are to participate in the call. The invention is particularly applicable to communications by means of optical fibers.
摘要翻译： 呼叫以已知的方式在终端之间以以信息传送调制的形式应用于沿着公共传输线行进的发射波的形式。 每个呼叫的每个终端分配发射频率（F（2P-1））。 根据本发明，在没有呼叫没有建立的情况下，向所有终端提供标记波，从而标记发射频率。 当正在建立新的呼叫时，标记的频率被分配给用于参与呼叫的至少一个终端的新呼叫。 本发明特别适用于通过光纤的通信。
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