Shen Chao, Guo Yujian, Oubei Hassan M, Ng Tien Khee, Liu Guangyu, Park Ki-Hong, Ho Kang-Ting, Alouini Mohamed-Slim, Ooi Boon S
Opt Express. 2016 Oct 31;24(22):25502-25509. doi: 10.1364/OE.24.025502.
The video streaming, data transmission, and remote control in underwater call for high speed (Gbps) communication link with a long channel length (~10 meters). We present a compact and low power consumption underwater wireless optical communication (UWOC) system utilizing a 450-nm laser diode (LD) and a Si avalanche photodetector. With the LD operating at a driving current of 80 mA with an optical power of 51.3 mW, we demonstrated a high-speed UWOC link offering a data rate up to 2 Gbps over a 12-meter-long, and 1.5 Gbps over a record 20-meter-long underwater channel. The measured bit-error rate (BER) are 2.8 × 10, and 3.0 × 10, respectively, which pass well the forward error correction (FEC) criterion.
水下的视频流传输、数据传输和远程控制需要高速（吉比特每秒）且具有较长信道长度（约10米）的通信链路。我们展示了一种紧凑且低功耗的水下无线光通信（UWOC）系统，该系统使用一个450纳米的激光二极管（LD）和一个硅雪崩光电探测器。当激光二极管在80毫安驱动电流下工作且光功率为51.3毫瓦时，我们演示了一个高速UWOC链路，在12米长的水下信道上实现了高达2吉比特每秒的数据速率，在创纪录的20米长水下信道上实现了1.5吉比特每秒的数据速率。测得的误码率分别为2.8×10和3.0×10，很好地通过了前向纠错（FEC）标准。
