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    A multimode optical fiber interferometer
    1.
    发明公开
    A multimode optical fiber interferometer 审中-公开
    Multimoden Glasfaser-Interferometer

    公开(公告)号：EP2538253A1

    公开(公告)日：2012-12-26

    申请号：EP11305802.8

    申请日：2011-06-23

    申请人： Alcatel Lucent

    发明人： Koebele, Clemens ,  Salsi, Massimiliano

    IPC分类号： G02B6/26 ,  H04B10/00 ,  H04J14/02

    CPC分类号： G02B6/29344

    摘要： An unbalanced interferometer comprising a first single mode optical fiber portion, a second single mode optical fiber portion and a multi-mode optical fiber, wherein the multi-mode optical fiber is coupled by a first splicing at one end to the first single mode optical fiber and by a second splicing at another end to the second single mode optical fiber, the first splicing comprising a first offset distance between a longitudinal axis of the multi-mode optical fiber and a longitudinal axis of the first single mode optical fiber.

    摘要翻译： 一种不平衡干涉仪，包括第一单模光纤部分，第二单模光纤部分和多模光纤，其中所述多模光纤通过一端的第一拼接耦合到所述第一单模光纤 并且通过在第二单模光纤的另一端进行第二次拼接，所述第一拼接包括所述多模光纤的纵向轴线与所述第一单模光纤的纵向轴线之间的第一偏移距离。

    Optical receiver for multimode communications
    2.
    发明公开
    Optical receiver for multimode communications 有权
    OpticherEmpfängerfürmultimodale Kommunikation

    公开(公告)号：EP2521289A1

    公开(公告)日：2012-11-07

    申请号：EP11164706.1

    申请日：2011-05-04

    申请人： Alcatel Lucent

    发明人： Koebele, Clemens ,  Salsi, Massimiliano

    IPC分类号： H04B10/13 ,  H04J14/04

    CPC分类号： H04B10/616 ,  H04B10/2581 ,  H04J14/04

    摘要： An optical receiver (20) for multimode communications comprises:
    a mode demultiplexer (21) having an input connected to a multimode link (22) and a plurality of output lines (231-234), wherein the mode demultiplexer is adapted to couple each of the modal components of the optical signal substantially into a selected one of the output lines,
    a plurality of coherent optical detectors (251-254) respectively connected to the output lines to produce a set of electrical digital signals each comprising an in-phase component and a quadrature-phase component,
    a plurality of independently adjustable optical delay devices (241-244) arranged on the output lines to impart a selected delay to each of the corresponding modal components, and
    a signal processing device (26) adapted to process the digital signals to recover the independent modulations of the respective modal components by inverting a mode-mixing characteristic of the multimode link.

    摘要翻译： 一种用于多模通信的光接收器（20）包括：具有连接到多模链路（22）和多个输出线（231-234）的输入的模式解复用器（21），其中所述模式解复用器适于将 光信号的模态分量基本上成为所选输出线之一，多个相干光检测器（251-254）分别连接到输出线以产生一组电数字信号，每组包括同相分量， 一个正交相位分量，多个可独立调节的光学延迟器件（241-244），布置在输出线上，以对每个对应的模态分量施加选定的延迟;以及信号处理设备（26），适于处理数字 信号通过反转多模链路的模式混合特性来恢复各个模态分量的独立调制。

    Method of optical data transmission using mode division multiplexing
    6.
    发明公开
    Method of optical data transmission using mode division multiplexing 有权
    Verfahren zur optischenDatenübertragungmittels Multiplex durch Modenteilung

    公开(公告)号：EP2645609A1

    公开(公告)日：2013-10-02

    申请号：EP12305371.2

    申请日：2012-03-30

    申请人： Alcatel Lucent

    发明人： Koebele, Clemens ,  Salsi, Massimiliano

    IPC分类号： H04J14/04 ,  H04J14/06 ,  G02B6/14

    CPC分类号： H04J14/04 ,  H04B10/2504 ,  H04B10/2581 ,  H04J14/06

    摘要： A method and a device for optical data transmission are proposed. Incoming optical signals having respective incoming waveguide modes are mapped into outgoing optical signals having respective outgoing waveguide modes, using optical spatial modulators, whose multiplicative patterns correspond to the respective electrical field patterns of the respective incoming or outgoing waveguide modes. An incoming optical signal, whose respective incoming waveguide mode is of an azimuthal order equal to zero, results in an outgoing optical signal, whose respective outgoing waveguide mode is of an azimuthal order equal to zero. Furthermore, two incoming optical signals, whose respective second incoming waveguide modes are of a same azimuthal order greater than zero, of a same radial order, and orthogonal to each other result in respective outgoing signals, whose respective outgoing waveguide modes are off a same azimuthal order greater than zero, of a same radial order and orthogonal to each other.

    摘要翻译： 提出了一种用于光数据传输的方法和装置。 具有相应输入波导模式的输入光信号被映射到具有各自输出波导模式的输出光信号，使用光学空间调制器，其乘法图案对应于各个输入或输出波导模式的相应电场图案。 输入光信号，其各个输入波导模式的方位角等于零，导致出射光信号，其各自的输出波导模式的方位级数等于零。 此外，两个输入光信号（其各自的第二入射波导模式具有大于零的相同方位角次序）具有相同的径向顺序并彼此正交，导致相应的输出波导模式处于相同的方位角 大于零，具有相同的径向顺序并且彼此正交。

    Spatial mode gain equalization
    7.
    发明公开
    Spatial mode gain equalization 有权
    Raummodus-Verstärkungsausgleich

    公开(公告)号：EP2533435A1

    公开(公告)日：2012-12-12

    申请号：EP11290258.0

    申请日：2011-06-06

    申请人： Alcatel Lucent

    发明人： Koebele, Clemens ,  Charlet, Gabriel

    IPC分类号： H04B10/13 ,  H04B10/158

    CPC分类号： H04B10/2581 ,  H04B10/6971

    摘要： The present document relates to optical transmission systems. In particular, the present document relates to the amplification of various spatial modes of a multi-mode fiber using a common optical amplifier. An optical transmission system is described. The optical transmission system comprises a multi-mode fiber (104) carrying a plurality of spatial modes; a multi-mode amplifier (102) configured to jointly amplify the power of the plurality of spatial modes; and an optical spatial mode gain equalizer (203, 300) configured to attenuate the power of a first spatial mode of the plurality of spatial modes with respect to the power of a second spatial mode of the plurality of spatial modes.

    摘要翻译： 本文件涉及光传输系统。 特别地，本文件涉及使用公共光放大器的多模光纤的各种空间模式的放大。 描述了光传输系统。 光传输系统包括承载多个空间模式的多模光纤（104） 被配置为联合放大所述多个空间模式的功率的多模式放大器（102） 以及光学空间模式增益均衡器（203,300），被配置为相对于所述多个空间模式的第二空间模式的功率衰减所述多个空间模式中的第一空间模式的功率。