Propagation properties of apertured laser beams with amplitude modulations and phase fluctuations through atmospheric turbulence |
| |
Authors: | X Ji and X Li |
| |
Affiliation: | (1) School of Science, Box 273, Xidian University, Xi’an, Shaanxi, 710071, China;(2) School of Microelectronics, Xidian University, Xi’an, Shaanxi, 710071, China;(3) China Research Institute of Radio Wave Propagation, Beijing, 102206, China; |
| |
Abstract: | The propagation properties of apertured laser beams with amplitude modulations (AMs) and phase fluctuations (PFs) through
atmospheric turbulence are studied in detail both analytically and numerically. The analytical expressions for the average
intensity, power in the bucket (PIB) and Strehl ratio (S
R
) of apertured laser beams with AMs and PFs propagating through atmospheric turbulence are derived. It is found that the worse
the phase fluctuation and the higher the amplitude modulation are, the less laser beams are affected by turbulence. Furthermore,
apertured Gaussian beams are more sensitive to turbulence than apertured laser beams with AMs and PFs. The average intensity
of apertured laser beams with AMs and PFs may be even larger than that of apertured Gaussian beams due to turbulence. In particular,
the influence of turbulence on the average maximum intensity of apertured laser beams with PFs and AMs may become serious
if an unsuitable truncated parameter is chosen, which should be avoided in practice. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|