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Bases for identifcation of spatial distribution of intensity laser beams
https://doi.org/10.32446/0368-1025it.2022-4-30-36
Abstract
The fundamentals of identification of spatial distributions of laser beam intensity are presented. This identification is essential for the certification of laser sources. The task of identification is to assess the similarity of the distribution of the intensity of the radiated field with a given (calculated) distribution. A methodology for identifying spatial distributions of laser beam intensity is proposed. To form measures of similarity of the intensity distribution of the radiated field with an arbitrarily given distribution, a mathematical apparatus based on functional inequalities has been developed. Various measures of similarity are considered, a number of spatial intensity distributions are compared with Gaussian and uniform intensity distributions depending on the dynamic range of the identification tool. The sensitivity of similarity measures to the shape of the intensity distribution of the emitted field is shown. It is proved that such well-known characteristics as the aberration factor and the propagation coefficient of the laser beam are special cases of measures based on solutions of functional inequalities.
About the Authors
A. M. Raitsin
Moscow Technical University of Communications and Informatics
Russian Federation
Russian Federation
Arkady M. Raitsin
Moscow
M. V. Ulanovskii
All-Russian Research Institute of Optical and Physical Measurements
Russian Federation
Russian Federation
Michael V. Ulanovskii
Moscow
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Review
For citations:
Raitsin A.M., Ulanovskii M.V. Bases for identifcation of spatial distribution of intensity laser beams. Izmeritel`naya Tekhnika. 2022;(4):30-36. (In Russ.) https://doi.org/10.32446/0368-1025it.2022-4-30-36
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