Combined Effect of Turbulence and Aerosol on Free Space Optical Links
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00305229" target="_blank" >RIV/68407700:21230/17:00305229 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/AO.56.000336" target="_blank" >http://dx.doi.org/10.1364/AO.56.000336</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/AO.56.000336" target="_blank" >10.1364/AO.56.000336</a>
Alternative languages
Result language
angličtina
Original language name
Combined Effect of Turbulence and Aerosol on Free Space Optical Links
Original language description
Despite the benefits of free-space optical (FSO) communications, their full utilization is limited by the influence of atmosphere weather conditions. Such as fog, turbulence, smoke, snow and others. In urban environments, additional environmental factor such as smog and dust particles due to air pollution caused by the industry and motor vehicles may affect the 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 the atmospheric turbulence and dust particle imposed scattering on the 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 micro-physic approach and the extinction caused by small particles is determined. An experimental measurement campaign using a dedicated test chamber is carried out to assess the FSO link performance operating wavelengths of 650 and 830 nm and under the dust and turbulent conditions. The measured attenuation and the Q-factor in terms of the velocity of particle flow and the turbulence strength are analyzed. We show that for an air flow of 2 m/s the Q-factor is almost 3.5 higher at the wavelength of 830 nm than at 670 nm. However, for 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 the ash particles the Q-factor is higher than that of sand particles.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Optics
ISSN
1559-128X
e-ISSN
2155-3165
Volume of the periodical
56
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
336-341
UT code for WoS article
000392097500029
EID of the result in the Scopus database
2-s2.0-85009786974