阅读说明：本技术 Wdm接收器及其操作方法 (WDM receiver and method of operating the same ) 是由 T·P·施兰斯 A·G·里克曼 于 2019-12-18 设计创作，主要内容包括：一种波分复用(WDM)接收器,包括：输入波导；以及连接到输入波导的解复用器。解复用器被配置为：将从输入波导接收的信号解复用为多个分离信号,分离信号中的一个或多个具有多个光学模式,以及将多个分离信号中的每个输出到相应输出波导中,该输出波导连接到解复用器的相应输出端口。被配置为承载具有多个光学模式的分离信号中的一个的至少一个输出波导被连接到相应的模式旋转器,该模式旋转器或者每个模式旋转器被配置为旋转在其中接收的相应分离信号的多个光学模式。该模式旋转器或者每个模式旋转器连接到相应波导光电二极管,该相应波导光电二极管被配置为根据从相应模式旋转器接收的分离信号生成光电流。(A Wavelength Division Multiplexed (WDM) receiver comprising: an input waveguide; and a demultiplexer connected to the input waveguide. The demultiplexer is configured to: demultiplexing a signal received from an input waveguide into a plurality of split signals, one or more of the split signals having a plurality of optical modes, and outputting each of the plurality of split signals into a respective output waveguide connected to a respective output port of the demultiplexer. At least one output waveguide configured to carry one of the split signals having a plurality of optical modes is connected to a respective mode rotator, the or each mode rotator being configured to rotate the plurality of optical modes of the respective split signal received therein. The or each mode rotator is connected to a respective waveguide photodiode configured to generate a photocurrent in dependence on the split signal received from the respective mode rotator.)