Atmospheric and Ocean Optics

Turbulence simulation plate based on irregular micro-optical structures fabricated by a mask-moving technique

[+] Author Affiliations
Hongtao Gao

Chinese Academy of Sciences, Institute of Optics and Electronics, State Key Laboratory of Optical Technologies for Microfabrication, Chengdu 610209, China and Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

Xiaochun Dong, Yudong Zhang, Qiling Deng, Li Pan, Xiangdi Lin, Chunlei Du

Chinese Academy of Sciences, Institute of Optics and Electronics, State Key Laboratory of Optical Technologies for Microfabrication, Chengdu 610209, China

Opt. Eng. 47(1), 016004 (January 10, 2008). doi:10.1117/1.2829763
History: Received February 09, 2007; Revised August 23, 2007; Accepted August 24, 2007; Published January 10, 2008
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A laboratory turbulence simulation based on irregular micro-optical structures has been studied. The phase distributions are derived from Kolmogorov spectra with different Fried parameters r0 by using the fast Fourier transform technique. A mask-shifting method has been invented for generating the designed irregular phase on a quartz substrate. The fabricated element is rotated by a motor to construct a turbulence generator. The dynamic phase produced by the generator is measured in real time with Shack-Hartmann sensor. The resulting power spectrum and the Fried parameter agree with the expected ones. Some issues associated with the simulation of turbulence are discussed.

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© 2008 Society of Photo-Optical Instrumentation Engineers

Citation

Hongtao Gao ; Xiaochun Dong ; Yudong Zhang ; Qiling Deng ; Li Pan, et al.
"Turbulence simulation plate based on irregular micro-optical structures fabricated by a mask-moving technique", Opt. Eng. 47(1), 016004 (January 10, 2008). ; http://dx.doi.org/10.1117/1.2829763


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