Optical Wavefront Correction In Real Time

Virendra N. Mahajan

doi:10.1117/12.954745

19 July 1976 Optical Wavefront Correction In Real Time

Virendra N. Mahajan

Proceedings Volume 0075, Imaging Through the Atmosphere; (1976) https://doi.org/10.1117/12.954745
Event: 1976 SPIE/SPSE Technical Symposium East, 1976, Reston, United States

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.

Citation Download Citation

Virendra N. Mahajan "Optical Wavefront Correction In Real Time", Proc. SPIE 0075, Imaging Through the Atmosphere, (19 July 1976); https://doi.org/10.1117/12.954745

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