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Proceedings Paper

Analysis Of Phase Measurement Algorithms Utilizing Two-Beam Interference
Author(s): R. R. Butts
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Paper Abstract

The concept for a phased array laser transmitter described in Reference 1 interferes samples of the transmitted beams from adjacent telescopes to determine the relative phase of the two beams from which the samples are taken. This information is then used to con-trol optical path length adjusters to keep all of the beams in phase so that they will add constructively in the far field. A laboratory breadboard phased array transmitter utilizing this approach is currently being assembled and tested at the Air Force Weapons Laboratory. This breadboard is described in Reference 2. A study was performed in support of this experiment to formulate and assess various algorithms for estimating the phase mismatch of two laser beams from measurements of the irradiance pattern created by inter-fering samples of the beams. The results of that study are described here.

Paper Details

Date Published: 2 March 1984
PDF: 6 pages
Proc. SPIE 0440, Synthetic Aperture Systems I, (2 March 1984); doi: 10.1117/12.937582
Show Author Affiliations
R. R. Butts, Air Force Weapons Laboratory (United States)


Published in SPIE Proceedings Vol. 0440:
Synthetic Aperture Systems I
Janet S. Fender, Editor(s)

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