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    • 74. 发明授权
    • Bidirectional coding splitter
    • 双向编码分离器
    • US06831773B2
    • 2004-12-14
    • US10282018
    • 2002-10-29
    • Thomas PfeifferPeter Kersten
    • Thomas PfeifferPeter Kersten
    • G02F129
    • H04J14/005
    • It is an object of the invention to provide a network topology for OCDM signals. Coding splitters combining both coding and splitting functions are provided. The coding splitters themselves can be made from cascaded Mach Zehnder filters which are located somewhere in the network and which can be integrated using planar waveguide technologies. Each OCDM transceiver as well as the network is connected to the splitter via a pair of fibers for the two transmission directions. This set-up has the advantage that the same splitter can be used for both directions to and from the transceivers on one side and to and from the network on the other side.
    • 本发明的一个目的是提供一种用于OCDM信号的网络拓扑。 提供了组合编码和分割功能的编码分离器。 编码分离器本身可以由位于网络某处的级联马赫曾德滤波器制成,并且可以使用平面波导技术进行集成。 每个OCDM收发器以及网络通过用于两个传输方向的一对光纤连接到分路器。 该设置具有以下优点:相同的分离器可以用于在一侧的收发器和来自另一侧的网络的两个方向。
    • 75. 发明授权
    • Receiver for receiving optical signals
    • 用于接收光信号的接收器
    • US06775484B1
    • 2004-08-10
    • US09086026
    • 1998-05-28
    • Thomas Pfeiffer
    • Thomas Pfeiffer
    • H04B1006
    • H04B10/69H04B10/67H04B10/671
    • A receiver (EMP1, . . . , EMPn) is disclosed for receiving optical signals from an optical transmission network (NET) serving to transmit coded, multiplexed optical signals. The receiver (EMP1, . . . , EMPn) includes a means (DEK1) for detecting the optical signals to be received, e.g., a Fabry-Perot filter, and processing means (O/E1, 0/E2, 5) to compensate noise present in the detected optical signals by combining the detected optical signals with compensation signals. The means (DEK1) is adapted to transmit optical signals to be received and reflect optical signals not to be received. A further means (K1), e.g., an optical coupler, is provided for deriving the compensation signals from at least part of the reflected optical signals and then applying the compensation signals to the processing means (O/E1, O/E2, 5). The receiver has the advantage that the signal to be received is not contained, or is contained only minimally, in the compensation signal, so that it does not affect, or affects only insignificantly,the degree of compensation when being combined with the detected signal.
    • 公开了一种用于从用于发送经编码的复用光信号的光传输网络(NET)接收光信号的接收机(EMP1,...,EMPn)。 接收器(EMP1,...,EMPn)包括用于检测要接收的光信号的装置(DEK1),例如法布里 - 珀罗滤波器,以及处理装置(O / E1,0 / E2,5) 通过将检测到的光信号与补偿信号组合,存在于检测到的光信号中的噪声。 该装置(DEK1)适用于传输要接收的光信号,并反映不被接收的光信号。 提供另外的装置(K1),例如光耦合器,用于从至少部分反射的光信号导出补偿信号,然后将补偿信号施加到处理装置(O / E1,O / E2,5) 。 接收机的优点在于,在补偿信号中不包含或仅包含最小限度地接收到的信号,使得它不会在与检测信号组合时影响或仅影响补偿的程度。