Reconstructing 2D spatial modes for classical and quantum light

• URL: http://arxiv.org/abs/2009.01778v1
• Date: Thu, 3 Sep 2020 16:33:59 GMT
• Title: Reconstructing 2D spatial modes for classical and quantum light
• Abstract summary: 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. We reconstruct the modes of a multimode fiber and the spatial Schmidt modes of squeezed vacuum generated via high-gain parametric down conversion.
• Score: 2.7228991660988626
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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