Abstract

Phase diversity is a method of image-based wavefront sensing that simultaneously estimates the unknown phase aberrations of an imaging system along with an image of the object. To perform this estimation a series of images differing by a known aberration, typically defocus, are used. In this paper we present a new method of introducing the diversity unique to segmented and multi-aperture systems in which individual segments or sub-apertures are pistoned with respect to one another. We compare this new diversity with the conventional focus diversity.

© 2008 Optical Society of America

Synthetic aperture imaging by using spatial modulation diversity technology with stochastic parallel gradient descent algorithm

Haotong Ma, Zongliang Xie, Xuejun Long, Bo Qi, Ge Ren, Jianliang Shi, Zhangang Cui, Yang Jiang, and Xiaojun Xu
Opt. Express 23(11) 14836-14849 (2015)

Extending capture range for piston retrieval in segmented systems

Scott W. Paine and James R. Fienup
Appl. Opt. 56(33) 9186-9192 (2017)

Extended capture range for focus-diverse phase retrieval in segmented aperture systems using geometrical optics

Alden S. Jurling and James R. Fienup
J. Opt. Soc. Am. A 31(3) 661-666 (2014)

Simultaneous multi-piston measurement method in segmented telescopes

Weirui Zhao and Qingchong Zeng
Opt. Express 25(20) 24540-24552 (2017)

On-Line Long-Exposure Phase Diversity: a Powerful Tool for Sensing Quasi-Static Aberrations of Extreme Adaptive Optics Imaging Systems.

L. M. Mugnier, J.-F. Sauvage, T. Fusco, A. Cornia, and S. Dandy
Opt. Express 16(22) 18406-18416 (2008)