20-meter underwater wireless optical communication link with 15 Gbps data rate

• Published in: Optics express Vol. 24; no. 22; pp. 25502 - 25509
• Main Authors: Shen, Chao, Guo, Yujian, Oubei, Hassan M., Ng, Tien Khee, Liu, Guangyu, Park, Ki-Hong, Ho, Kang-Ting, Alouini, Mohamed-Slim, Ooi, Boon S.
• Format: Journal Article
• Language: English
• Published: United States 31.10.2016
• ISSN: 1094-4087; 1094-4087
• 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.