TÜRBÜLANSLI ORTAMDA YAYILAN SUPER LORENTZGAUSS LASER DEMETLERİ İÇİN BER ANALİZİ

Çalışmada, türbülanslı ortamda yayılan super Lorentz-Gauss laser demetlerinin yatay iletim uzaklıklarındaki BER - SNR değişimi hesaplandı. BER hesaplamalarında kullanılan pırıldama indisleri, genişletilmiş HuygensFresnel prensibi ile elde edilmiştir. Matlab kullanılarak BERSNR değerinin bağlantı uzaklığına ve laser kaynak boyutuna bağımlılığı gösterildi. Kısa iletim mesafesinde super Lorentz-Gauss laser demetinin ticari olarak kullanılan Gauss laser demetine göre daha iyi bağlantı performansı sağladığı sonucuna varıldı.

BER ANAYLSIS FOR SUPER LORENTZ-GAUSSIAN LASER BEAMS PROPAGATING IN TURBULENT MEDIA

In this work, BER-SNR variation of super Lorentz-Gaussian laser beam that propagating horizontally path in turbulent media is analyzed. Using scintillation index which is obtained by extented Huygens-Fresnel principle, BERSNR value is calculated. Matlab program is used to show BERSNR variation depending on link distance and beamwidth. To conclude, in short link range, super Lorentz-Gaussian beam is proven to be better link performance superior to commercially available Gaussian beam.

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