Measuring and modifying the spiral spectrum of entangled photon pairs

M. P. van Exter; H. Di Lorenzo Pires

doi:10.1364/FIO.2010.FMM7

Frontiers in Optics 2010/Laser Science XXVI
OSA Technical Digest (CD) (Optica Publishing Group, 2010),
paper FMM7
•https://doi.org/10.1364/FIO.2010.FMM7

Measuring and modifying the spiral spectrum of entangled photon pairs

M. P. van Exter and H. Di Lorenzo Pires

Frontiers in Optics 2010

Rochester, New York United States
24–28 October 2010
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Quantum Information and Communications II (FMM)

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M. P. van Exter and H. Di Lorenzo Pires, "Measuring and modifying the spiral spectrum of entangled photon pairs," in Frontiers in Optics 2010/Laser Science XXVI, OSA Technical Digest (CD) (Optica Publishing Group, 2010), paper FMM7.

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Abstract

We have measured the complete probability distribution of the orbital angular momentum modes that are generated in spontaneous parametric down conversion. We show how on-purpose phase mismatching increases the spiral bandwidth and flattens the modal distribution.

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