Sun Xiaobin, Cai Wenqi, Alkhazragi Omar, Ooi Ee-Ning, He Hongsen, Chaaban Anas, Shen Chao, Oubei Hassan Makine, Khan Mohammed Zahed Mustafa, Ng Tien Khee, Alouini Mohamed-Slim, Ooi Boon S
Opt Express. 2018 May 14;26(10):12870-12877. doi: 10.1364/OE.26.012870.
For circumventing the alignment requirement of line-of-sight (LOS) underwater wireless optical communication (UWOC), we demonstrated a non-line-of-sight (NLOS) UWOC link adequately enhanced using ultraviolet (UV) 375-nm laser. Path loss was chosen as a figure-of-merit for link performance in this investigation, which considers the effects of geometries, water turbidity, and transmission wavelength. The experiments suggest that path loss decreases with smaller azimuth angles, higher water turbidity, and shorter wavelength due in part to enhanced scattering utilizing 375-nm radiation. We highlighted that it is feasible to extend the current findings for long distance NLOS UWOC link in turbid water, such as harbor water.
为了规避视线（LOS）水下无线光通信（UWOC）的对准要求，我们展示了一种使用375纳米紫外（UV）激光充分增强的非视线（NLOS）UWOC链路。在本研究中，路径损耗被选为链路性能的品质因数，其考虑了几何形状、水的浊度和传输波长的影响。实验表明，路径损耗随着方位角减小、水的浊度增加和波长缩短而降低，部分原因是利用375纳米辐射增强了散射。我们强调，将当前的研究结果扩展到浑浊水中（如港口水）的长距离NLOS UWOC链路是可行的。
