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Proceedings Paper

Optical Wavefront Correction In Real Time
Author(s): Virendra N. Mahajan
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Paper Abstract

A theory of optical Bragg diffraction is given and it is shown that an array of Bragg cells, each cell carrying two orthogonal sound waves, can be used to correct in real time section-by-section amplitude and phase and overall tilt errors of an optical wavefront distorted by atmospheric turbulence. Because of the tilt correction an object is auto-matically tracked and the image stabilized. A section-by-section tilt correction can be achieved if two cell arrays are used. The spectral bandwidth of an image corrected by Bragg cells is also considered.

Paper Details

Date Published: 19 July 1976
PDF: 10 pages
Proc. SPIE 0075, Imaging Through the Atmosphere, (19 July 1976); doi: 10.1117/12.954745
Show Author Affiliations
Virendra N. Mahajan, The Charles Stark Draper Laboratory, Inc. (United States)

Published in SPIE Proceedings Vol. 0075:
Imaging Through the Atmosphere
James C. Wyant, Editor(s)

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