Combined effect of turbulence and aerosol on free-space optical links

Libich, Jiri, Perez, Joaquin, Zvanovec, Stanislav, Ghassemlooy, Zabih, Nebuloni, Roberto and Capsoni, Carlo (2017) Combined effect of turbulence and aerosol on free-space optical links. Applied Optics, 56 (2). pp. 336-341. ISSN 0003-6935

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Despite the benefits of free-space optical (FSO) communications, their full utilization is limited by the influence of atmospheric weather conditions, such as fog, turbulence, smoke, snow, etc. In urban environments, additional environmental factors such as smog and dust particles due to air pollution caused by industry and motor vehicles may affect FSO link performance, which has not been investigated in detail yet. Both smog and dust particles cause absorption and scattering of the propagating optical signal, thus resulting in high attenuation. This work investigates the joint impact of atmospheric turbulence and dust particle-imposed scattering on FSO link performance as part of the last-mile access network in urban areas. Propagation of an optical wave is at first analyzed based on the microphysic approach, and the extinction caused by small particles is determined. An experimental measurement campaign using a dedicated test chamber is carried out to assess FSO link performance operating wavelengths of 670 nm and 830 nm and under dust and turbulent conditions. The measured attenuation and the

Item Type: Article
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 08 Feb 2017 10:48
Last Modified: 12 Oct 2019 19:21

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