Experimental study of laser beam propagation in turbulent atmosphere

Chun-Ping Yang; Wu-Guang He; Jian Wu

doi:10.1117/12.828801

20 May 2009 Experimental study of laser beam propagation in turbulent atmosphere

Chun-Ping Yang, Wu-Guang He, Jian Wu

Proceedings Volume 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 728343 (2009) https://doi.org/10.1117/12.828801
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Intensity of atmospheric turbulence may overly affect bit error rate for a ground-based laser wireless communication system, so it is necessary to measure of atmospheric turbulence intensity and fluctuation of image centroid while laser beam propagates in turbulent atmosphere. In this paper, an experiment system is set up based on theory of light transmission in turbulent atmosphere. In the system, a laser named Nd : YAG is used horizontally to emit a laser beam with wavelength 1.06 μm on a platform at the height of 1.5 m. Three infrared CCD cameras are set at 200 m, 300 m(or 600 m) and 1000 m far from laser, which are applied to receive laser facula images from Lambertian boards, respectively. A lot of laser facula images are collected within some serial days under different periods of time every day, and hundreds of image frames are gathered at a time by making use of this experiment device. Fluctuation of image centroid is computed with these image frames, and the structure constant of atmospheric refractive index (C ²_n) is also derived. Finally, a comparison is made between aforementioned C²_n and those derived by meteorology factors.

Citation Download Citation

Chun-Ping Yang, Wu-Guang He, and Jian Wu "Experimental study of laser beam propagation in turbulent atmosphere", Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 728343 (20 May 2009); https://doi.org/10.1117/12.828801

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available