基于紧凑型450纳米激光器的4.8吉比特/秒16正交幅度调制光正交频分复用传输用于水下无线光通信。

4.8 Gbit/s 16-QAM-OFDM transmission based on compact 450-nm laser for underwater wireless optical communication.

作者信息

Oubei Hassan M, Duran Jose R, Janjua Bilal, Wang Huai-Yung, Tsai Cheng-Ting, Chi Yu-Cheih, Ng Tien Khee, Kuo Hao-Chung, He Jr-Hau, Alouini Mohamed-Slim, Lin Gong-Ru, Ooi Boon S

出版信息

Opt Express. 2015 Sep 7;23(18):23302-9. doi: 10.1364/OE.23.023302.

DOI:10.1364/OE.23.023302

PMID:26368431

Abstract

We experimentally demonstrate an underwater wireless optical communications (UWOC) employing 450-nm TO-9 packaged and fiber-pigtailed laser diode (LD) directly encoded with an orthogonal frequency division multiplexed quadrature amplitude modulation (QAM-OFDM) data. A record data rate of up to 4.8 Gbit/s over 5.4-m transmission distance is achieved. By encoding the full 1.2-GHz bandwidth of the 450-nm LD with a 16-QAM-OFDM data, an error vector magnitude (EVM) of 16.5%, a signal-to-noise ratio (SNR) of 15.63 dB and a bit error rate (BER) of 2.6 × 10(-3), well pass the forward error correction (FEC) criterion, were obtained.

摘要

我们通过实验演示了一种水下无线光通信（UWOC），该通信采用450纳米TO-9封装且带有尾纤的激光二极管（LD），并直接用正交频分复用正交幅度调制（QAM-OFDM）数据进行编码。在5.4米的传输距离上实现了高达4.8 Gbit/s的创纪录数据速率。通过用16-QAM-OFDM数据对450纳米LD的整个1.2吉赫兹带宽进行编码，获得了16.5%的误差向量幅度（EVM）、15.63分贝的信噪比（SNR）和2.6×10⁻³的误码率（BER），这些指标顺利通过了前向纠错（FEC）标准。