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Optical test-benches for multiple source wavefront propagation and spatiotemporal point-spread function emulation

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Abstract

Precise measurement of aberrations within an optical system is essential to mitigate combined effects of user-generated aberrations for the study of anisoplanatic imaging using optical test benches. The optical system point spread function (PSF) is first defined, and methods to minimize the effects of the optical system are discussed. User-derived aberrations, in the form of low-order Zernike ensembles, are introduced using a liquid crystal spatial light modulator (LC-SLM), and dynamic phase maps are used to study the spatiotemporal PSF. A versatile optical test bench is described, where the Shack Hartmann and curvature wavefront sensors are used to emulate the effects of wavefront propagation over time from two independent sources.

© 2014 Optical Society of America

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