Open AccessPhase noise analysis of two wavelength coherent imaging system
Author(s) -
Benjamin R. Dapore,
David J. Rabb,
Joseph W. Haus
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.030642
Subject(s) - optics , phase (matter) , holography , noise (video) , phase noise , computer science , wavelength , digital holography , phase modulation , image quality , physics , image (mathematics) , artificial intelligence , quantum mechanics
Two wavelength coherent imaging is a digital holographic technique that offers several advantages over conventional coherent imaging. One of the most significant advantages is the ability to extract 3D target information from the phase contrast image at a known difference frequency. However, phase noise detracts from the accuracy at which the target can be faithfully identified. We therefore describe a method for relating phase noise to the correlation of the image planes corresponding to each wavelength, among other parameters. The prediction of the phase noise spectrum of a scene will aid in determining our ability to reconstruct the target.