The M2-Factor of a Coherent Combined Beam
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Graphical Abstract
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Abstract
Analytic expression of the M2-factor of a coherent field combined by two beams, such as TEM00、TEM10 and TEM01, is presented in this paper.And some properties of these M2-factors are obtained by numerical calculation.An experiment is carried to prove these properties of the M2-factor of the coherent field superimposed by two TEM00 beams in the end.
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