Title :
Propagation Properties of Multi-Gaussian Beams in Turbulent Atmosphere
Author :
Ai, Yangli ; Dan, Youquan ; Hao, Bangyuan
Author_Institution :
Dept. of Phys., Civil Aviation Flight Univ. of China, Guanghan, China
Abstract :
Many types of light beam, such as flat-topped beams, annular beams and multi-annular beams, are the special cases of multi-Gaussian (MG) beams. Based on the extended Huygens-Fresnel integral and the second-order moments of the Wigner distribution function, the analytical formula for the M2-factor of MG beams in turbulent atmosphere has been derived. Numerical results show that the M2-factor of MG beams in turbulence increases with the propagation distance and depends on the beam order, waist width, wavelength, spatial power spectrum of the refractive index fluctuations.
Keywords :
Aerospace electronics; Atmosphere; Distribution functions; Educational institutions; Laser beams; Optical beams; Optical propagation; Optical refraction; Optical variables control; Physics;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu, China
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504129
