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Proceedings Paper

Eliminating atmospheric optical noise through digital holography
Author(s): James D. Trolinger; Frank F. Wu; Eddie Scott; Benjamin D. Buckner; Amit K. Lal
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Paper Abstract

Systems that attempt to image or project optical energy or information through a turbulent atmosphere are limited by aberrating, refractive index variations. The processes can be improved in a variety of ways if the complex wave function of the aberrated wave can be recorded, reconstructed and analyzed at a sufficient speed. This paper describes application of digital holography for recording, reconstructing, and processing complex wave functions to complement methods such as adaptive optics and lucky imaging. Having the complex waveform provides all of the information required by adaptive optical procedures and also enables improved image processing that is not applicable to real images. Unlike intensity averaging, when complex wave functions are averaged, the random fluctuations in the phase cancel since phase terms include both positive and negative values. In this paper we describe the application of digital holography for recording, reconstructing, and processing complex wave functions of atmospherically aberrated wave functions and report demonstrations in correcting for atmospheric turbulence.

Paper Details

Date Published: 13 September 2012
PDF: 11 pages
Proc. SPIE 8494, Interferometry XVI: Applications, 849407 (13 September 2012); doi: 10.1117/12.930310
Show Author Affiliations
James D. Trolinger, MetroLaser, Inc. (United States)
Frank F. Wu, MetroLaser, Inc. (United States)
Eddie Scott, MetroLaser, Inc. (United States)
Benjamin D. Buckner, MetroLaser, Inc. (United States)
Amit K. Lal, MetroLaser, Inc. (United States)


Published in SPIE Proceedings Vol. 8494:
Interferometry XVI: Applications
Cosme Furlong; Christophe Gorecki; Erik L. Novak, Editor(s)

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