Simulation of wavefront sensorless correction based on Stochastic Parallel Gradient Descent algorithm

Gang Wang

doi:10.1117/12.2066146

21 November 2014 Simulation of wavefront sensorless correction based on Stochastic Parallel Gradient Descent algorithm

Gang Wang

Proceedings Volume 9266, High-Power Lasers and Applications VII; 92661V (2014) https://doi.org/10.1117/12.2066146
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Stochastic Parallel Gradient Descent(SPGD) algorithm can optimize the system exhibition firsthand without using of wavefront sensor, it predigests the adaptive optic system. Based on SPGD algotithm, a model with 32 element demormable mirror was simulated, the capability of correct toward static aberration and convergence of SPGD algorithm are analysed, the relationship of gain coefficient, stochastic perturbation amplitude are discussed, an adaptive adjustment of gain coefficient is proposed, and it can improve convergence rate effectively.

Citation Download Citation

Gang Wang "Simulation of wavefront sensorless correction based on Stochastic Parallel Gradient Descent algorithm", Proc. SPIE 9266, High-Power Lasers and Applications VII, 92661V (21 November 2014); https://doi.org/10.1117/12.2066146

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