利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.011 秒)

    Optical hybrid for coherent detection systems
    2.
    发明公开
    Optical hybrid for coherent detection systems 失效
    用于相干检测系统的光学混合

    公开(公告)号：EP0456365A3

    公开(公告)日：1992-07-29

    申请号：EP91303495.5

    申请日：1991-04-18

    申请人： AT&T Corp.

    发明人： Delavaux, Jean-Marc P.

    IPC分类号： H04B10/14

    CPC分类号： H04B10/61 ,  H04B10/611 ,  H04B10/614

    摘要： A polarization independent coherent lightwave detection arrangement is disclosed which utilizes an optical hybrid including a single polarization beam splitter (16) and a single polarization maintaining coupler (18). The received message signal EM(t) and a local oscillator signal ELO(t) are applied as orthogonal inputs to the beam splitter such that the pair of output signals contain orthogonal components from each input signal. The coupler functions to combine the pair of output signals such that a balanced receiver (14) is capable of recovering the transmitted data signal, regardless of the polarization of the incoming message signal.

    Polarization independent coherent lightwave detection arrangement
    4.
    发明公开
    Polarization independent coherent lightwave detection arrangement 失效
    PolarisationsunabhängigekohärenteLichtwellendetektionsvorrichtung。

    公开(公告)号：EP0445943A2

    公开(公告)日：1991-09-11

    申请号：EP91301470.0

    申请日：1991-02-25

    申请人： AT&T Corp.

    发明人： Delavaux, Jean-Marc P.

    IPC分类号： H04B10/14

    CPC分类号： H04B10/2572 ,  H04B10/61 ,  H04B10/611 ,  H04B10/614

    摘要： A polarization independent coherent lightwave detection arrangement is disclosed which utilizes an optical hybrid (11) including a single polarization beam splitter (12) and a set of three polarization maintaining optical couplers (one input (22), two output (16,20)). By controlling the polarization state of the local oscillator to remain at a fixed value, polarization independent recovery of a transmitted data signal may be accomplished. Phase independence may be incorporated by replacing the pair of output polarization maintaining optical couplers with a pair of phase diversity optical hybrids.

    摘要翻译： 公开了一种偏振无关的相干光波检测装置，其利用包括单个偏振分束器（12）和一组三个偏振维持光耦合器（一个输入端（22），两个输出端（16,20））的光混合器（11） 。 通过控制本地振荡器的偏振状态保持固定值，可实现发射数据信号的偏振无关恢复。 可以通过用一对相位分集光学混合替代一对输出偏振维持光耦合器来并入相位独立性。

    Hybrid pumping arrangement for doped fiber amplifiers
    7.
    发明公开
    Hybrid pumping arrangement for doped fiber amplifiers 失效
    Hybride PumpeinrichtungfürdotiertenFaserverstärker。

    公开(公告)号：EP0555973A1

    公开(公告)日：1993-08-18

    申请号：EP93300629.8

    申请日：1993-01-28

    申请人： AT&T Corp.

    发明人： Delavaux, Jean-Marc P.

    IPC分类号： H01S3/06 ,  H01S3/094

    CPC分类号： H01S3/094 ,  H01S3/06787 ,  H01S3/094003 ,  H01S3/09408 ,  H01S3/094096

    摘要： A hybrid pumping scheme for rare-earth doped fiber amplifiers is disclosed. In particular, the arrangement utilizes at least two pump sources (P₁, P₂), operating at different wavelengths, coupled to a section of doped optical fiber (26), such as erbium-doped optical fiber. Optical multiplexers (16,20), such as fused fiber couplers, may be used to couple the message signal desired to be amplified, as well as the pump sources, to the doped fiber section. For certain embodiments, the doped fiber may be segmented into separate components, with the length of each component determined with respect to the wavelength of the associated pump signal.

    摘要翻译： 公开了一种用于稀土掺杂光纤放大器的混合泵浦方案。 特别地，该装置利用与掺杂光纤（26）的一部分（例如掺铒光纤）耦合的不同波长的至少两个泵浦源（P1，P2）。 诸如熔融光纤耦合器的光复用器（16,20）可用于将期望放大的消息信号以及泵浦源耦合到掺杂光纤部分。 对于某些实施例，掺杂光纤可被分段成单独的部件，每个部件的长度相对于相关联的泵浦信号的波长确定。

    Polarization independent coherent lightwave detection arrangement
    8.
    发明公开
    Polarization independent coherent lightwave detection arrangement 失效
    极化独立的低温检测装置

    公开(公告)号：EP0445943A3

    公开(公告)日：1992-07-15

    申请号：EP91301470.0

    申请日：1991-02-25

    申请人： AT&T Corp.

    发明人： Delavaux, Jean-Marc P.

    IPC分类号： H04B10/14

    CPC分类号： H04B10/2572 ,  H04B10/61 ,  H04B10/611 ,  H04B10/614

    摘要： A polarization independent coherent lightwave detection arrangement is disclosed which utilizes an optical hybrid (11) including a single polarization beam splitter (12) and a set of three polarization maintaining optical couplers (one input (22), two output (16,20)). By controlling the polarization state of the local oscillator to remain at a fixed value, polarization independent recovery of a transmitted data signal may be accomplished. Phase independence may be incorporated by replacing the pair of output polarization maintaining optical couplers with a pair of phase diversity optical hybrids.

    Optical hybrid for coherent detection systems
    9.
    发明公开
    Optical hybrid for coherent detection systems 失效
    Optisches HybridfürkohärenteEmpfangssysteme。

    公开(公告)号：EP0456365A2

    公开(公告)日：1991-11-13

    申请号：EP91303495.5

    申请日：1991-04-18

    申请人： AT&T Corp.

    发明人： Delavaux, Jean-Marc P.

    IPC分类号： H04B10/14

    CPC分类号： H04B10/61 ,  H04B10/611 ,  H04B10/614

    摘要： A polarization independent coherent lightwave detection arrangement is disclosed which utilizes an optical hybrid including a single polarization beam splitter (16) and a single polarization maintaining coupler (18). The received message signal EM(t) and a local oscillator signal ELO(t) are applied as orthogonal inputs to the beam splitter such that the pair of output signals contain orthogonal components from each input signal. The coupler functions to combine the pair of output signals such that a balanced receiver (14) is capable of recovering the transmitted data signal, regardless of the polarization of the incoming message signal.

    摘要翻译： 公开了一种偏振独立的相干光波检测装置，其利用包括单个偏振分束器（16）和单个偏振保持耦合器（18）的光学混合器。 将接收到的消息信号EM（t）和本地振荡器信号ELO（t）作为正交输入施加到分束器，使得该对输出信号包含来自每个输入信号的正交分量。 耦合器用于组合一对输出信号，使得平衡接收机能够恢复发送的数据信号，而不管输入消息信号的极化。