Spatial coherence measurements through turbulent atmosphere using a computer-aided interferometer

Details Spatial coherence measurements through turbulent atmosphere using a computer-aided interferometer Spatial coherence measurements through turbulent atmosphere using a computer-aided interferometer

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981optco..36..250i&link_type=abstract

Optics Communications, vol. 36, Feb. 15, 1981, p. 250-254.

Physics

Optics

7

Atmospheric Turbulence, Coherent Light, Computer Techniques, Interferometry, Optical Data Processing, Turbulence Effects, Atmospheric Optics, Computerized Simulation, Diffraction Patterns, Digital Systems, Electronic Control, Optical Measuring Instruments, Phase Coherence, Photodiodes

Scientific paper

By processing instantaneous values of the complex degree of coherence fluctuated by turbulent atmosphere, the complex degree of coherence over a telescope aperture is measured. A photodiode array is used to analyze fringe patterns produced by a computer-controlled wave-front folding interferometer in a short time. The analysis is carried out in order to calculate the instantaneous values of the complex degree of coherence. The system is applied in one-dimensional simulation experiments.

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