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Dispersion spreading of biphotons in optical fibres and two-photon interference

G. Brida·M. V. Chekhova·M. Genovese·M. Gramegna·L. A. Krivitsky
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Abstract

We present the first observation of two-photon polarization interference structure in the second-order Glauber's correlation function of two-photon light generated via type-II spontaneous parametric down-conversion. In order to obtain this result, two-photon light is transmitted through an optical fibre and the coincidence distribution is analyzed by means of the START-STOP method. Beyond the experimental demonstration of an interesting effect in quantum optics, these results also have considerable relevance for quantum communications.

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G. Brida, M. V. Chekhova, M. Genovese, M. Gramegna, L. A. Krivitsky. 2006-03-27. Dispersion spreading of biphotons in optical fibres and two-photon interference. https://doi.org/10.1103/physrevlett.96.143601

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