Laser beam blink propagation: Evaluation BER in free space resembled dual SLG

Abstract

The laser beam blink propagation for Super Lorentz Gaussian (SLG) beam was calculated in free space (FSO) by using the Huygens Fresnel approximation method. In addition, the Scintillation index was articulated and evaluated BER (bit error rate) up to several kilometres for different parameters. Scintillation index variations in plan receiver point were treated in all states without turbulence in the atmosphere and using dual models. Our results were shown to be compatible with the results of earlier studies on Gaussian beam scintillation and propagation. Moreover, the Kolmogorov-spectrum function reduced the blink fluctuation. Also, the outcomes indicate that the small beam width of the dual SLG beam will bring a far distance by utilizing the same source size of the Gaussian beam. Better fallouts were achieved with decreased scintillation index that applied and changed a dual mode with a fixed structure constant factor. A low scintillation index, intensity, and receiver field were obtained. To this end, the scintillation index affects the circumstances depending on the magnitude of turbulence and control of the beam propagation factors.