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

Jiri Libich, Joaquin Perez, Stanislav Zvanovec, Zabih Ghassemlooy, Roberto Nebuloni, Carlo Capsoni

    Research output: Contribution to journalArticlepeer-review

    38 Citations (Scopus)

    Abstract

    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
    Original languageEnglish
    Pages (from-to)336-341
    JournalApplied Optics
    Volume56
    Issue number2
    DOIs
    Publication statusPublished - 10 Jan 2017

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