Efficient computation of the Strehl ratio for the wavefront coding system with the rotationally symmetric phase mask

Xinhua Chen; Xiaofeng Wang; Weimin Shen

doi:10.1117/12.2503086

9 August 2018 Efficient computation of the Strehl ratio for the wavefront coding system with the rotationally symmetric phase mask

Xinhua Chen, Xiaofeng Wang, Weimin Shen

Author Affiliations +

Proceedings Volume 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018); 108066J (2018) https://doi.org/10.1117/12.2503086
Event: Tenth International Conference on Digital Image Processing (ICDIP 2018), 2018, Shanghai, China

Abstract

The Strehl ratio (SR) describes the ratio of the on-axis intensity between the aberrated system and the diffraction limited system. It can be used to build the merit function for the optimization of phase mask in the wavefront coding system. We propose a computationally efficient method for the SR and use it to compute the SR with different defocus errors for the wavefront coding system using the rotationally symmetric phase mask. With this method, the computation efficiency of the merit function can be improved greatly in the optimization of the rotationally symmetric phase mask.

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Xinhua Chen, Xiaofeng Wang, and Weimin Shen "Efficient computation of the Strehl ratio for the wavefront coding system with the rotationally symmetric phase mask", Proc. SPIE 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018), 108066J (9 August 2018); https://doi.org/10.1117/12.2503086

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