基于正交频分复用（OFDM）调制的520纳米激光二极管的26米/5.5吉比特每秒空-水光学无线通信。

26 m/5.5 Gbps air-water optical wireless communication based on an OFDM-modulated 520-nm laser diode.

作者信息

Chen Yifei, Kong Meiwei, Ali Tariq, Wang Jiongliang, Sarwar Rohail, Han Jun, Guo Chaoyang, Sun Bing, Deng Ning, Xu Jing

出版信息

Opt Express. 2017 Jun 26;25(13):14760-14765. doi: 10.1364/OE.25.014760.

DOI:10.1364/OE.25.014760

Abstract

We experimentally demonstrate a high-speed air-water optical wireless communication system with both downlink and uplink transmission employing 32-quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) and a single-mode pigtailed green-light laser diode (LD). This work is an important step towards the future study on optical wireless communications between underwater platforms and airborne terminals. Over a 5-m air channel and a 21-m water channel, we achieve a 5.3-Gbps transmission without power loading (PL) and a 5.5-Gbps transmission with PL in the downlink. The corresponding bit error rates (BERs) are 2.64×10 and 2.47×10, respectively, which are below the forward error correction (FEC) criterion. A data rate of 5.5 Gbps with PL at a BER of 2.92×10 is also achieved in the uplink.

摘要

我们通过实验展示了一种高速空-水光学无线通信系统，该系统采用32正交幅度调制（QAM）正交频分复用（OFDM）和单模尾纤绿光激光二极管（LD）进行下行链路和上行链路传输。这项工作是朝着未来水下平台与机载终端之间光学无线通信研究迈出的重要一步。在5米的空气信道和21米的水信道上，我们在下行链路中实现了无功率加载（PL）时5.3 Gbps的传输速率以及有PL时5.5 Gbps的传输速率。相应的误码率（BER）分别为2.64×10和2.47×10，均低于前向纠错（FEC）标准。在上行链路中，在误码率为2.92×10时也实现了有PL情况下5.5 Gbps的数据速率。