Dispersion spreading of biphotons in optical fibers and two-photon interference.
We present the first observation of two-photon polarization interference structure in the second-order Glauber 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 fiber 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.
Brida
G
G
Istituto Elettrotecnico Nazionale Galileo Ferraris, Strada delle Cacce 91, 10135 Turin, Italy.
Chekhova
M V
MV
Genovese
M
M
Gramegna
M
M
Krivitsky
L A
LA