We consider a quasi-Gaussian characteristic that defines the degree of deviation of the measured intensity distribution of a laser beam from a Gaussian distribution. This characteristic is an alternative to the beam dispersion coefficient M2.
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Translated from Izmeritel’naya Tekhnika, No. 6, pp. 30–32, June, 2015.
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Raitsin, A.M., Ulanovskii, M.V. Application of the Logarithmic Moment of an Intensity Distribution as an Alternative to the Dispersion Coefficient of a Laser Beam. Meas Tech 58, 630–633 (2015). https://doi.org/10.1007/s11018-015-0766-3
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DOI: https://doi.org/10.1007/s11018-015-0766-3