Title :
Propagation Properties of Partially Coherent Hollow Gaussian Beams in Atmospheric Turbulence
Author :
Ai, Yangli ; Dan, Youquan ; Jiang, Tianfu
Author_Institution :
Dept. of Phys., Civil Aviation Flight Univ. of China, Guanghan, China
Abstract :
The analytical expressions for the spatial and angular widths and the beam propagation factor (M2 factor) of partially coherent hollow Gaussian beams (HGBs) propagating through atmospheric turbulence have been derived. It has been shown that the angular width for partially coherent HGBs in turbulence is independent of the beam order and is equal to that of a Gaussian-Schell Model (GSM) beam. The M2 factor of partially coherent HGBs in turbulence depends on the waist width and increases with increasing beam order, propagation distance, and refractive index structure constant, and with decreasing coherent parameter and wavelength. Our results are also illustrated by typical numerical examples.
Keywords :
atmospheric light propagation; atmospheric turbulence; light coherence; refractive index; Gaussian-Schell model beam; M2 factor; angular width; atmospheric turbulence; beam order; beam propagation factor; coherent parameter; partially coherent hollow Gaussian beams; propagation distance; refractive index structure constant; spatial width; waist width; wavelength; Atmospheric modeling; GSM; Laser beams; Optical propagation; Optical resonators; Optimized production technology;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780521
