Optical fiber transmission system
    1.
    发明授权
    Optical fiber transmission system 有权
    光纤传输系统

    公开(公告)号:US06833947B2

    公开(公告)日:2004-12-21

    申请号:US10348954

    申请日:2003-01-23

    IPC分类号: H01S300

    摘要: An optical fiber transmission system having Raman amplifier module for inputting a pumping signal into an optical fiber for stimulated Raman amplification of a first carrier signal. The Raman amplifier module includes a pump having two optical sources, wherein the first optical source emits a linear beam along a first polarization axis of polarization, and the second optical source emits another linear beam along a second polarization axis distinct from the first axis. The two beams are combined to for the pumping signal. The Raman amplifier module also includes a polarization tuning means arranged to superimpose in real time at least one of the polarization axes to a Polarization Dependant Loss axis.

    摘要翻译: 一种具有拉曼放大器模块的光纤传输系统,用于将泵浦信号输入到用于第一载波信号的受激拉曼放大的光纤中。 拉曼放大器模块包括具有两个光源的泵,其中第一光源沿着第一极化偏振轴发射线性光束,并且第二光源沿着与第一轴不同的第二偏振轴发射另一线性光束。 两个光束被组合以用于泵浦信号。 拉曼放大器模块还包括偏振调谐装置,其被布置成将至少一个偏振轴实时叠加到偏振相关损耗轴。

    System for compensating polarization dispersion in an optical transmission system
    3.
    发明授权
    System for compensating polarization dispersion in an optical transmission system 失效
    用于补偿光传输系统中偏振色散的系统

    公开(公告)号:US06710904B1

    公开(公告)日:2004-03-23

    申请号:US09599507

    申请日:2000-06-23

    IPC分类号: H04B1018

    CPC分类号: H04B10/25133 H04B10/2572

    摘要: To increase the bit rate at which and the distance over which data can be transmitted by optical fiber, polarization dispersion is compensated by means of a polarization controller, a system for generating a differential group delay between two orthogonal modes of polarization and a control unit of the polarization controller. A chromatic dispersion compensator applies compensation which is adjusted dynamically to optimize the quality of the received optical signal. Applications include long-haul optical transmission on standard fibers.

    摘要翻译: 为了增加通过光纤传送数据的位速率和距离,通过偏振控制器补偿偏振色散,用于产生两个正交偏振模式之间的差分组延迟的系统和控制单元的控制单元 偏振控制器。 色散补偿器应用动态调整的补偿,以优化接收到的光信号的质量。 应用包括在标准光纤上的长距离光传输。

    Method of stabilization optical solitons, and equipment for implementing the method
    4.
    发明授权
    Method of stabilization optical solitons, and equipment for implementing the method 失效
    稳定光孤子的方法,以及实施该方法的设备

    公开(公告)号:US06408114B1

    公开(公告)日:2002-06-18

    申请号:US09481905

    申请日:2000-01-12

    IPC分类号: G02B600

    CPC分类号: H04B10/25077

    摘要: The invention relates to a method of stabilizing managed optical solitons propagating in a dispersion-managed optical fiber transmission line, said method being characterized in that the following are performed periodically along the transmission line for each managed optical soliton: a first step consisting in establishing coupling that is substantially linear between the energy and the spectrum width of the optical soliton; and a second step consisting in setting the spectrum width by filtering, and, by means of the substantially linear coupling, in setting the energy of the soliton resulting from the first step, the center frequency of the filtering being substantially equal to the center frequency of the optical soliton.

    摘要翻译: 本发明涉及一种稳定在色散管理的光纤传输线中传播的被管理的光孤子的方法,所述方法的特征在于,对于每个被管理的光孤子,沿着传输线周期性地执行以下操作:第一步包括建立耦合 其在光孤子的能量和光谱宽度之间基本上是线性的; 以及第二步骤,通过滤波设置频谱宽度,并且通过基本线性耦合,在设置由第一步骤产生的孤子的能量时,滤波的中心频率基本上等于 光孤子。

    Dispersion-shifted monomode optical fiber
    5.
    发明授权
    Dispersion-shifted monomode optical fiber 失效
    色散位移单模光纤

    公开(公告)号:US5659649A

    公开(公告)日:1997-08-19

    申请号:US637784

    申请日:1996-05-02

    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。

    System and a method for performing soliton transmission
    8.
    发明授权
    System and a method for performing soliton transmission 失效
    系统和执行孤子传输的方法

    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。

    Device for compensating polarization dispersion in an optical transmission system
    9.
    发明授权
    Device for compensating polarization dispersion in an optical transmission system 失效
    用于补偿光传输系统中偏振色散的装置

    公开(公告)号:US06792168B2

    公开(公告)日:2004-09-14

    申请号:US10206962

    申请日:2002-07-30

    IPC分类号: G02B6126

    CPC分类号: H04B10/2572

    摘要: A device for compensating the polarization dispersion suffered by an optical signal when it is transmitted by an optical line includes a polarization controller. It generates a differential time delay between two orthogonal polarization modes and controls the polarization controller so that it converts the signal transmitted by the line into a compensated optical signal. If the quality of the compensated optical signal remains below a reference quality the device modifies the state of polarization of the optical signal. Applications include long distance optical transmission via standard fibers.

    摘要翻译: 用于补偿光信号在由光线路传输时遭受的偏振色散的装置包括偏振控制器。 它产生两个正交偏振模式之间的差分时间延迟,并控制偏振控制器,使其将由线传输的信号转换为补偿光信号。 如果补偿的光信号的质量保持低于参考质量,则装置修改光信号的偏振状态。 应用包括通过标准光纤的长距离光传输。