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Characterization of Signal Fluctuations in Optical Communications with Intensity Modulation and Direct Detection through the Turbulent Atmospheric Channel

Perlot, Nicolas (2006) Characterization of Signal Fluctuations in Optical Communications with Intensity Modulation and Direct Detection through the Turbulent Atmospheric Channel. In: Kommunikationstechnik. Shaker Verlag. ISBN 3-8322-4848-x.

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Kurzfassung

Laser free-space communications are now able to compete with radio communications. However, optical communications through the atmosphere still suffer from significant drawbacks. In particular, atmospheric optical turbulence, which consists of variations of the refractive index, must be considered as random. Turbulence induces phase and intensity fluctuations in the propagating wave and can cause severe degradations of the system performance. The purpose of this thesis has been to characterize the turbulence-induced fluctuations of the received optical power, also called scintillation. These fluctuations depend on parameters such as the path length, the turbulence strength, the beam shape or the size of the receiving aperture. Theoretical results are derived from the Kolmogorov model of turbulence but different approaches leading to different results are available. Distribution and temporal spectrum of the received optical power serve as inputs to the direct-detection receiver model.

Dokumentart:Beitrag in einem Lehr- oder Fachbuch
Titel:Characterization of Signal Fluctuations in Optical Communications with Intensity Modulation and Direct Detection through the Turbulent Atmospheric Channel
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Perlot, NicolasNICHT SPEZIFIZIERT
Datum:Februar 2006
Verlag:Shaker Verlag
Name der Reihe:Kommunikationstechnik
ISBN:3-8322-4848-x
Status:veröffentlicht
Stichwörter:FSO, Scintillation, IM/DD Systems, KNOCGOP
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Laserforschung und -technologie
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Digitale Netze
Hinterlegt von: Dr. Nicolas Perlot
Hinterlegt am:01 Mär 2006
Letzte Änderung:12 Dez 2013 20:10

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