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arXiv · 2009.01778

Reconstructing 2D spatial modes for classical and quantum light

Valentin A. Averchenko·Gaetano Frascella·Mahmoud Kalash·Andrea Cavanna·Maria V. Chekhova
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Abstract

We propose a method for finding 2D spatial modes of thermal field through a direct measurement of the field intensity and an offline analysis of its spatial fluctuations. Using this method, in a simple and efficient way we reconstruct the modes of a multimode fiber and the spatial Schmidt modes of squeezed vacuum generated via high-gain parametric down conversion. The reconstructed shapes agree with the theoretical results.

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Valentin A. Averchenko, Gaetano Frascella, Mahmoud Kalash, Andrea Cavanna, Maria V. Chekhova. 2020-09-03. Reconstructing 2D spatial modes for classical and quantum light. https://doi.org/10.1103/physreva.102.053725

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