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POLIAK, J. PEZZEI, P. BARCÍK, P. LEITGEB, E. HUDCOVÁ, L. WILFERT, O.
Originální název
On the derivation of exact analytical FSO link attenuation model
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The development of semiconductor technology has led to an increase of the usable bandwidth of light-emitting diodes (LED), which are suitable for indoor high-speed communications or free-space optical (FSO) communications over a relatively short distance. The high-speed long-distance FSO links, where turbulence effects are considerably high, are a domain of laser sources. Hence, the paper covers the study of an exact analytical model of FSO link attenuation and the benefits of using an elliptically symmetrical Gaussian beam rather than a circularly symmetrical one. The paper further generalises the study to the FSO link misalignment and the pointing error analysis. The main contribution is in the derivation of an exact laser beam attenuation model, which is further used to analyse the geometrical losses in FSO systems as well as a general misalignment of an elliptically symmetrical beam in any direction from a circular receiver aperture. The challenging mathematical part includes two and six expressions of the general laser beam attenuation model for FSO communications taking into consideration circular and elliptical beams, respectively. The paper concludes with an analysis of advantages of using elliptical beams in FSO systems and a discussion on optimal orientation of the major beam axis with respect to the maximisation of the link availability. The paper summarises some previous results of the team of authors to further extend the model's applicability into more general terms towards a unified model
Klíčová slova
free-space optics, attenuation
Autoři
POLIAK, J.; PEZZEI, P.; BARCÍK, P.; LEITGEB, E.; HUDCOVÁ, L.; WILFERT, O.
Rok RIV
2014
Vydáno
16. 6. 2014
Nakladatel
John Wiley & Sons, Ltd.
ISSN
2161-3915
Periodikum
Transactions on Emerging Telecommunications Technologies
Ročník
25
Číslo
6
Stát
Spojené království Velké Británie a Severního Irska
Strany od
609
Strany do
617
Strany počet
9
BibTex
@article{BUT106983, author="Juraj {Poliak} and Pirmin {Pezzei} and Peter {Barcík} and Erich {Leitgeb} and Lucie {Hudcová} and Otakar {Wilfert}", title="On the derivation of exact analytical FSO link attenuation model", journal="Transactions on Emerging Telecommunications Technologies", year="2014", volume="25", number="6", pages="609--617", doi="10.1002/ett.2818", issn="2161-3915" }