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Frontiers in Optics

Dispersion Cancellation and Manipulation in Quantum Interferometry

Alexander V. Sergienko, Olga V. Minaeva, Cristian Bonato, Bahaa E. A. Saleh

Published Jan 1, 2008• 0 citations
Publisher

Abstract

We demonstrate simultaneous even- and odd-order spectral dispersion cancellation in a single experiment. We also present a spatial counterpart of the dispersion cancellation effect that leads to the removal of even-order aberrations in quantum interference.
DOI
10.1364/fio.2008.ftuq4

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We report the first experimental demonstration of even-order aberration cancellation in quantum interferometry. The effect is a spatial counterpart of the spectral group velocity dispersion cancellation, which is associated with spectral entanglement. It is manifested in temporal interferometry by virtue of the multiparameter spatial-spectral entanglement. Spatially entangled photons, generated by spontaneous parametric down-conversion, were subjected to spatial aberrations introduced by a deformable mirror that modulates the wave front. We show that only odd-order spatial aberrations affect the quality of quantum interference.
The even-order dispersion cancellation effect based on the frequency anti-correlated photon pairs has attracted much attention in the research of quantum dispersion cancellation in two-photon systems.In this letter, we demonstrate a four-photon quantum interferometry in which we can not only observe the even-order dispersion cancellation effect but also the odd-order cancellation.Importantly, the four-photon scheme can get a much better resolution than the two-photon case and help us get a better understanding of the interference phenomenon in a four-photon interferometry.