High-order dispersion effects in two-photon interference

Abstract

Two-photon interference and Hong-Ou-Mandel (HOM) effect are relevant tools for quantum metrology and quantum information processing. In optical coherence tomography, HOM effect is exploited to achieve high-resolution measurements with the width of the HOM dip being the main parameter. On the other hand, applications like dense coding require high-visibility performances. Here we address high-order dispersion effects in two-photon interference and study, theoretically and experimentally, the dependence of the visibility and the width of the HOM dip on both the pump spectrum and the downconverted photon spectrum. In particular, a spatial light modulator is exploited to experimentally introduce and manipulate a custom phase function to simulate the high-order dispersion effects.

References in corpus (4)

• Beating the channel capacity limit for linear photonic superdense coding
• Theory of Two-Photon Interactions with Broadband Down-Converted Light and Entangled Photons
• Accessing the purity of a single photon by the width of the Hong-Ou-Mandel interference
• Chirped-pulse interferometry with finite frequency correlations