Fuzzy control iterative algorithm for beam uniformity enhancement of gas laser through boundary layer flow

Xu Wu; Kenan Wu; Wenting Jiang

doi:10.1117/12.2068204

21 August 2014 Fuzzy control iterative algorithm for beam uniformity enhancement of gas laser through boundary layer flow

Xu Wu, Kenan Wu, Wenting Jiang

Author Affiliations +

Proceedings Volume 9233, International Symposium on Photonics and Optoelectronics 2014; 923314 (2014) https://doi.org/10.1117/12.2068204
Event: International Symposium on Photonics and Optoelectronics (SOPO 2014), 2014, Suzhou, China

Abstract

Fuzzy control iterative algorithm for beam uniformity enhancement of gas laser through boundary layer flow is presented. The iterative process of the proposed algorithm is controlled by the fuzzy control theory. In each loop, the MSE and the TUI value are evaluated to fuzzily determine which one is relatively greater, leading to different approaches in the iteration. Computer simulation results proved the effectiveness of the proposed method. Gerchberg- Saxton algorithm, profile smoothing algorithm and fuzzy control iterative algorithm are applied to the diffractive optical element design for the correction of laser beam distorted by a Blausius boundary layer. Fuzzy control iterative algorithm leads to better result than Gerchberg-Saxton algorithm and profile smoothing algorithm. Both mean square error and top ununiformity index of the result obtained by fuzzy control iterative algorithm are rather low.

Citation Download Citation

Xu Wu, Kenan Wu, and Wenting Jiang "Fuzzy control iterative algorithm for beam uniformity enhancement of gas laser through boundary layer flow", Proc. SPIE 9233, International Symposium on Photonics and Optoelectronics 2014, 923314 (21 August 2014); https://doi.org/10.1117/12.2068204

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