水下
高斯光束
无线
高斯分布
光无线
闪烁
光学
传输(电信)
梁(结构)
光纤
自由空间光通信
计算机科学
物理
热的
光通信
电信
声学
地质学
海洋学
气象学
量子力学
探测器
作者
Shuang He,Peng Zhang,Hao Yu,Dongsheng Tian,Hang Chen,Hui Dai,Pengfei Ye,Dashuai Wang,Shoufeng Tong
摘要
Structured beams have attracted increasing interest in free-space and fiber-based optical communications. Underwater wireless optical communication (UWOC) is becoming a prospective technique in marine exploration. We investigated UWOC performance using different representative structured beams. The transmission performances of the Gaussian, Bessel-Gaussian (BG), Ince-Gaussian (IG), and radially polarized Gaussian (RPG) beams were experimentally demonstrated and evaluated in underwater channels subjected to thermal gradient. The experimental results show that the BG, IG, and RPG perform better against the thermal gradient. Compared with the Gaussian beams, the beam wanders of BG, IG, and RPG beams under the thermal gradient have been reduced by 56.9%, 8.2%, and 59%, the scintillation indices have been decreased by 12.8%, 17.3%, and 28.9%, and the BER performance of the BG, IG, and RPG beams have been improved by ∼5.5, ∼3.7, and ∼5.2
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