Intensity-based modal analysis of partially coherent beams with Hermite-Gaussian modes.
Many partially coherent beams are made up of a superposition of mutually uncorrelated Hermite-Gaussian modes. We prove that knowledge of the transverse intensity profile of such a beam is sufficient for evaluating the weights of the modes in an exact way. Simulations indicate that the proposed method resists noise well.
Gori
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Dipartimento di Fisica, Università degli Studi Roma Tre, and Istituto Nazionale per Fisica della Materie, Via della Vasca Navale 84, I-00146 Rome, Italy.
Santarsiero
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M
Borghi
R
R
Guattari
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