光学学报, 2018, 38 (6): 0606008, 网络出版: 2018-07-09   

基于光子灯笼的正交频分/模分复用IM-DD多模光纤传输系统 下载: 1315次

Orthogonal Frequency Division/Mode Division Multiplexing IM-DD Multimode Fiber Transmission System Based on Photonic Lanterns
作者单位
1 上海先进通信与数据科学研究院, 上海 200444
2 上海大学特种光纤与光接入网重点实验室, 上海 200444
摘要
提出一个基于光子灯笼的正交频分复用(OFDM)/模分复用多模光纤传输系统,利用2个模式选择性光子灯笼分别作为模式复用与解复用器,选取LP01模与LP11b模式作为发送信道,利用自适应比特加载OFDM调制方式在50 m长的OM4多模光纤上实现了7.2 Gb/s的传输。实验结果表明,调整2路信号的偏振态,当LP01端的入射光功率比LP11b端的入射光功率低4 dB左右时,可以保证2路信号在接收端的光功率一致。当2路信号的接收光功率均低至-13 dBm时,2路信号的误码率分别为1.3×10 -3与3.2×10 -3,均低于硬判决前向纠错(HD-FEC)门限。该系统为低成本、短距离以及大容量的数据传输场景提供了解决方案。
Abstract
A orthogonal frequency division multiplexing(OFDM)/mode division multiplexing multimode fiber transmission system based on photonic lanterns(PL) is proposed. Two mode selective PLs are used as multiplexer(MUX) and demultiplexer(DEMUX). LP01 mode and LP11b mode are selected as the transmission channels. An adaptive bit loading OFDM modulation is used to achieve the transmission of 7.2 Gb/s on a 50 m OM4 multimode fiber. The experimental results show that when the incident light power of LP01 mode is about 4 dB lower than that of LP11b mode, we can achieve the same received optical power by adjusting the polarization state of the two signals. When the received power is -13 dBm, the bit error rates(BERs) of two signals are 1.3×10 -3 and 3.2×10 -3, respectively, which are lower than the threshold of hard decision-forward error correction (HD-FEC). The system provides a solution for the large capacity data transmission with low cost at short distance.

陈健, 黄青青, 张倩武, 王腾, 曾祥龙, 宋英雄, 李迎春, 张俊杰. 基于光子灯笼的正交频分/模分复用IM-DD多模光纤传输系统[J]. 光学学报, 2018, 38(6): 0606008. Jian Chen, Qingqing Huang, Qianwu Zhang, Teng Wang, Xianglong Zeng, Yingxiong Song, Yingchun Li, Junjie Zhang. Orthogonal Frequency Division/Mode Division Multiplexing IM-DD Multimode Fiber Transmission System Based on Photonic Lanterns[J]. Acta Optica Sinica, 2018, 38(6): 0606008.

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