Effects Of The Receiving Aperture Size On Atmospheric Laser Scintillation Measurements

G. Conforti; A. Consortini; J. H. Churnside; R. J. Hill

doi:10.1117/12.950382

28 March 1989 Effects Of The Receiving Aperture Size On Atmospheric Laser Scintillation Measurements

G. Conforti, A. Consortini, J. H. Churnside, R. J. Hill

Proceedings Volume 1029, Scattering and Diffraction; (1989) https://doi.org/10.1117/12.950382
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

Experimental investigations ofilgser scintillation through atmospheric turbulence require measurements of irradiance at points in the space. Theories are usually in terms of the irradiance at points; therefore point-aperture results are easier to interpret. Also, the statistics of irradiance at points give more complete information than does aperture-averaged irradiance. Practical reasons however require use of apertures of non-negligible dimensions. Extremely small apertures imply extremely low signal levels and low signal to-noise ratio giving rise to poor measurements. One is therefore faced with the problem of choosing aperture sizes that represent a reasonable compromise between the two opposite requirements. It is therefore important to know whether or not use of a given aperture size simulates a point measurement.

Citation Download Citation

G. Conforti, A. Consortini, J. H. Churnside, and R. J. Hill "Effects Of The Receiving Aperture Size On Atmospheric Laser Scintillation Measurements", Proc. SPIE 1029, Scattering and Diffraction, (28 March 1989); https://doi.org/10.1117/12.950382

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