Empirical Study of the Underwater Turbulence Effect on Non-Coherent Light

被引：22
|
作者：
Geldard, Callum T. [1 ]
Thompson, John [1 ]
Popoola, Wasiu O. [1 ]
机构：
[1] Univ Edinburgh, Li Fi Res & Dev Ctr, Sch Engn, Inst Digital Commun, Edinburgh EH9 3JL, Midlothian, Scotland
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 20期
关键词：
Laser beams; Measurement by laser beam; Light emitting diodes; Lenses; Scattering; Temperature measurement; Nonhomogeneous media; Visible light communication; underwater communication; underwater turbulence; light emitting diodes (LED); COMMUNICATION;
D O I：
10.1109/LPT.2020.3020368
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents an experimental study comparing the relative impact of turbulence induced scattering on coherent and non-coherent light propagating through water. It is shown that the scintillation index increases with increasing temperature inhomogeneity in the underwater channel. Our results indicate that a light beam from a non-coherent source has a greater resilience to temperature inhomogeneity induced turbulence effect in an underwater channel. These results will help researchers in simulating realistic channel conditions when modelling a light emitting diode (LED) based intensity modulation with direct detection (IM/DD) underwater optical wireless communication (UOWC) link.
引用
收藏
页码：1307 / 1310
页数：4
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