20 November 2014 Research of the simulation of dynamic atmospheric turbulence based on liquid crystal spatial light modulator
Author Affiliations +
Proceedings Volume 9300, International Symposium on Optoelectronic Technology and Application 2014: Infrared Technology and Applications; 930019 (2014) https://doi.org/10.1117/12.2071625
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China
Abstract
The dynamic atmospheric turbulence is simulated in the laboratory upon the phase-only liquid crystal spatial light modulator. Dynamic phase screens are generated by the spline function method and the frozen turbulence method. The average cross-correlation coefficient of the Zernike coefficients between these two methods is 0.6608. Moreover, the laser atmospheric transition experiment is carried on under different turbulence intensities. The logarithmic light intensity probability density distribution is close to the normal distribution, and the fitting determine coefficient is above 0.9. In the weak turbulence (r0=0.1m), the standard deviation of the arrival angle fluctuation is approximately 30 to 40 μrad, while it is 40 to 50 μrad in the moderate turbulence (r0=0.01m). The simulation result is compliant with the turbulence theory. Compared with the frozen method, the arrival angle fluctuation spectrum in high frequency upon the spline method is smoother. It reveals that although two methods have a good consistency with each other, the dynamic simulation of the spline method is supposed to be more favorable in the researching of the free-space laser propagation.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mengyun Duan, Mengyun Duan, Xin Shan, Xin Shan, Yong Ai, Yong Ai, Zhun Xiong, Zhun Xiong, Min Liu, Min Liu, Zhengren Zhou, Zhengren Zhou, } "Research of the simulation of dynamic atmospheric turbulence based on liquid crystal spatial light modulator", Proc. SPIE 9300, International Symposium on Optoelectronic Technology and Application 2014: Infrared Technology and Applications, 930019 (20 November 2014); doi: 10.1117/12.2071625; https://doi.org/10.1117/12.2071625
PROCEEDINGS
6 PAGES


SHARE
Back to Top