Analysis Of Phase Measurement Algorithms Utilizing Two-Beam Interference

R. R. Butts

doi:10.1117/12.937582

2 March 1984 Analysis Of Phase Measurement Algorithms Utilizing Two-Beam Interference

R. R. Butts

Proceedings Volume 0440, Synthetic Aperture Systems I; (1984) https://doi.org/10.1117/12.937582
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

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.

Citation Download Citation

R. R. Butts "Analysis Of Phase Measurement Algorithms Utilizing Two-Beam Interference", Proc. SPIE 0440, Synthetic Aperture Systems I, (2 March 1984); https://doi.org/10.1117/12.937582

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