公开(公告)号：US20100166423A1

公开(公告)日：2010-07-01

申请号：US12617890

申请日：2009-11-13

Applicant: Deyuan Chang ,  Yuanyuan Fang ,  Chan Zhao ,  Qianjin Xiong

Inventor： Deyuan Chang ,  Yuanyuan Fang ,  Chan Zhao ,  Qianjin Xiong

IPC: H04J14/06

CPC classification number: H04J14/06 ,  H04J14/0258 ,  H04J14/0276 ,  H04J14/0279

Abstract: A method, device, and system for polarization division multiplexing (PDM) and polarization division demultiplexing are provided in the field of communication and transmission. The device for polarization division demultiplexing includes a polarization controller (PC), a polarization beam splitter (PBS), a detection control module, an optoelectronic receiver 1, and an optoelectronic receiver 2. The PC is adapted to receive a PDM optical signal carrying an identification signal and perform polarization control on the PDM optical signal. The PBS is adapted to perform polarization division on the PDM optical signal carrying the identification signal after the polarization control. The detection control module is adapted to perform identification signal detection on the optical signal after the polarization division to obtain a power of the identification signal, and output a polarization control signal to control the PC according to a power change of the identification signal. The optoelectronic receiver 1 and the optoelectronic receiver 2 are adapted to perform demodulation reception on an X-polarization branch optical signal and a Y-polarization branch optical signal respectively to obtain a first original signal and a second original signal. Thereby, during polarization division demultiplexing, reversal of two demultiplexed polarization branches is effectively avoided.

Abstract translation: 在通信和传输领域中提供了用于偏振分割复用（PDM）和偏振分解解复用的方法，装置和系统。 用于偏振分解解复用的装置包括偏振控制器（PC），偏振分束器（PBS），检测控制模块，光电接收器1和光电接收器2.PCI适于接收携带 识别信号，并对PDM光信号执行偏振控制。 PBS适用于在偏振控制后携带识别信号的PDM光信号上执行偏振分割。 检测控制模块，用于对偏振分割后的光信号进行识别信号检测，得到识别信号的功率，输出偏振控制信号，根据识别信号的功率变化来控制PC。 光电接收器1和光电接收器2分别适用于在X偏振分支光信号和Y偏振分支光信号上执行解调接收以获得第一原始信号和第二原始信号。 因此，在偏振分解解复用期间，有效地避免了两个解复用的偏振分支的反转。