Title :
Comparison of atmospheric losses in 850 nm and 1550 nm optical windows
Author :
Prokes, Ales ; Wilfert, Otakar ; Petrzela, Jiri
Author_Institution :
Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
Atmospheric phenomena such as scattering and turbulence can cause large variation in laser beam attenuation of free space optics systems. The paper deals with comparison of the atmospheric attenuation caused by both these phenomena and with comparison of the link availability affected by scattering at 850 nm and 1550 nm. The dispersive behavior of the atmosphere is modeled using the Mie scattering and the power loss caused by turbulence is calculated under assumption that the probability of having a too-high short-term bit error rate is kept under a certain value. The availability calculation is based on statistical evaluation of visibility data collected at several airports in Europe and takes into consideration the link distance and power link margin.
Keywords :
Mie scattering; atmospheric light propagation; atmospheric optics; atmospheric turbulence; error statistics; laser beams; optical links; optical windows; Europe airports; Mie scattering; atmospheric losses; atmospheric phenomena; bit error rate; free space optics systems; laser beam attenuation; optical windows; turbulence; wavelength 1550 nm; wavelength 850 nm; Attenuation; Availability; Laser beams; Optical receivers; Optical sensors; Optical transmitters;
Conference_Titel :
Computational Technologies in Electrical and Electronics Engineering (SIBIRCON), 2010 IEEE Region 8 International Conference on
Conference_Location :
Listvyanka
Print_ISBN :
978-1-4244-7625-1
DOI :
10.1109/SIBIRCON.2010.5555202
