Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloCombined effect of turbulence and aerosol on free-space optical links
Anno di pubblicazione2017
Formato
  • Elettronico
  • Cartaceo
Autore/iLibich, Jiri; Perez, Joaquin; Zvanovec, Stanislav; Ghassemlooy, Zabih; Nebuloni, Roberto; Capsoni, Carlo
Affiliazioni autoriCzech Tech Univ; Univ Politecn Valencia; Northumbria Univ; CNR; Politecn Milan
Autori CNR e affiliazioni
  • CARLO CAPSONI
  • ROBERTO NEBULONI
Lingua/e
  • inglese
AbstractDespite 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 Q factor in terms of the velocity of particle flow and turbulence strength are analyzed. We show that for an airflow of 2 m/s, the Q factor is almost 3.5 higher at the wavelength of 830 nm than at 670 nm. However, for a wavelength of 670 nm, the FSO link is less affected by the increase in airflow compared to 830 nm. The Q factor reduces with turbulence. Under similar turbulence conditions, for ash particles, the Q factor is higher than that of sand particles. (C) 2017 Optical Society of America
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da336
Pagine a341
Pagine totali6
RivistaApplied optics (2004)
Attiva dal 2004
Editore: Optical Society of America, - Washington, DC
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 1559-128X
Titolo chiave: Applied optics (2004)
Titolo proprio: Applied optics. (2004)
Numero volume della rivista56
Fascicolo della rivista2
DOI10.1364/AO.56.000336
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000392097500029)
Parole chiaveFree-space optics, Turbulence, Aerosol
Link (URL, URI)https://www.osapublishing.org/ao/abstract.cfm?uri=ao-56-2-336&origin=search
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Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
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