Optimal signal and reference strengths for a digital-holography wavefront sensor

Cameron J. Radosevich; Douglas E. Thornton; Mark F. Spencer

doi:10.1117/12.2596578

1 August 2021 Optimal signal and reference strengths for a digital-holography wavefront sensor

Cameron J. Radosevich, Douglas E. Thornton, Mark F. Spencer

Proceedings Volume 11836, Unconventional Imaging and Adaptive Optics 2021; 118360C (2021) https://doi.org/10.1117/12.2596578
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

This paper uses wave-optics simulations with weak-to-strong scintillation conditions to model the performance of a digital-holography wavefront sensor (DH-WFS). Via Monte Carlo analysis, these simulations predict the optimal signal and reference strengths of a DH-WFS in the off-axis pupil plane recording geometry (PPRG). Incidentally, the Monte Carlo analysis shows that, despite conventional knowledge, we cannot directly relate the signal-to-noise ratio and the field-estimated Strehl ratio to the hologram fringe visibility. Such results are directly inform ongoing experimental efforts on how to design and build a DH-WFS in the off-axis PPRG to properly handle weak-to-strong scintillation conditions.

Conference Presentation

Citation Download Citation

Cameron J. Radosevich, Douglas E. Thornton, and Mark F. Spencer "Optimal signal and reference strengths for a digital-holography wavefront sensor", Proc. SPIE 11836, Unconventional Imaging and Adaptive Optics 2021, 118360C (1 August 2021); https://doi.org/10.1117/12.2596578

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