TY - JOUR JF - opsi JO - ICOP & ICPET _ INPC _ ICOFS VL - 21 IS - 0 PY - 2015 Y1 - 2015/3/01 TI - Effect of atmospheric optical turbulence on the beam propagation factor of flat-topped beam TT - اثر تلاطم نوری جو بر پارامتر انتشار پرتو باریکه لیزری با نمایه‌ تخت N2 - Beam propagation factor of flat-topped (FT) beam through atmospheric turbulence is investigated based on the extended Huygens–Fresnel integral and the Wigner distribution function. Our results show that beam quality of FT beam in turbulence depends on the beam characteristic, for example order of FT beam, degree of spatial coherence length and also model of optical turbulence and its parameters. Moreover, the effect of the turbulence on the beam quality of FT beam is smaller for beam with a higher order and a lower degree of spatial coherence length of the source. SP - 101 EP - 104 AU - siampoor, hossein AU - hadilou, naby AU - alavinejad, mahdi AD - Iran University of Science and Technology KW - Beam propagation factor KW - atmospheric optical turbulence KW - Flat-topped laser beam UR - http://opsi.ir/article-1-470-en.html ER -