一种基于光子晶体少模光纤模分复用系统的设计与分析

发布时间：2018-06-04 04:11

本文选题：模分复用(MDM) + 光子晶体少模光纤(PC-FMF)　；参考：《光电子·激光》2017年06期

【摘要】：对模分复用(MDM)系统中传输容量和模式串扰问题进行了研究,在VPItransmissionMaker仿真平台设计并构建了一种新型6×6多输入多输出(MIMO)MDM系统。本文系统使用高模式差分群时延(MDGD)光子晶体少模光纤(PC-FMF),实现包括(LP01、LP11a、LP11b、LP21a、LP21b、LP02)在内六模式相对独立的传输,结合恒模算法(CMA)对输出信号解复用。仿真实验结果表明,在系统的光信噪比(OSNR)为22dB时,每个模式携带传输速率为40Gbit/s的4QAM调制信号,实现了在PC-FMF中稳定传输34km,保证了每个模式信号的误码率(BER)均在10-5量级以下,满足通信系统传输最低要求。与传统FMF的MDM系统相比,本文设计的基于PC-FMF的MDM系统可有效消除模式间串扰,提高MDM系统的容量,在高速大容量光传输系统中具有重要价值。
[Abstract]:In this paper, the transmission capacity and mode crosstalk in the module division multiplexing (MDM) system are studied. A new 6 脳 6 multi-input and multi-output MIMO-MDM system is designed and constructed on the VPItransmissionMaker simulation platform. In this paper, the high mode differential group delay (MDGD) photonic crystal PC-FMFN is used to realize six modes relatively independent transmission, including LP01a / LP11b / LP21b / LP21b / LP21b / LP02). The output signal is demultiplexed with the constant mode algorithm (CMA). The simulation results show that when the optical signal-to-noise ratio (OSNR) of the system is 22dB, each mode carries the 4QAM modulation signal with the transmission rate of 40Gbit/s, and realizes the steady transmission of 34km in PC-FMF, and ensures that the bit error rate (BER) of each mode signal is less than 10-5 order of magnitude. Meet the communication system transmission minimum requirements. Compared with the traditional MDM system of FMF, the MDM system based on PC-FMF designed in this paper can effectively eliminate the crosstalk between modes and improve the capacity of MDM system. It has important value in high speed and large capacity optical transmission system.
【作者单位】：南京邮电大学光电工程学院;南京邮电大学贝尔英才学院;
【基金】：国家自然科学基金(61077084,61571237) 江苏省自然科学基金(BK20151509)资助项目
【分类号】：TN253

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