Volume 21 -                   ICOP & ICPET _ INPC _ ICOFS 2015, 21 - : 213-216 | Back to browse issues page

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Reliability Analysis of Optical Communication Links Based on Propagation of Divergent Astigmatic Circular Partially Coherent Flat-Topped Laser beam
Behnam Shariati1 , Sarvenez Khatami1 , Ahamd Mashal1 , Fatemeh Dabbagh Kashani * 1
1- Iran University of Science and Technology
Abstract:   (4183 Views)
In this paper, the propagation of a divergent circular Partially Coherent Flat-Topped (PCFT) beam with astigmatism aberration in a turbulent atmosphere is investigated. Based on the extended Huygens-Fresnel integral method, analytical formula for the average intensity is derived. Power is calculated numerically and the effects of some source and environmental factors- such as wavelength, degree of flatness, divergence angle and visibility on communication parameters, Signal to Noise Ratio (SNR), Bit-Error Rate (BER) and Power In Bucket (PIB), are studied. The calculated results are shown graphically.
Keywords: atmospheric turbulence, propagation of a circular PCFT beam, astigmatism aberration, extended Huygens-Fresnel method, communication parameters
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Type of Study: Research | Subject: Special
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