We theoretically investigate the quantum interference of entangled two-photon states generated in a nonlinear crystal pumped by femtosecond optical pulses. Interference patterns generated by the polarization analog of the Hong-Ou-Mandel interferometer are studied. Attention is devoted to the effects of the pump-pulse profile (pulse duration and chirp) and the second-order dispersion in both the nonlinear crystal and the interferometer's optical elements. Dispersion causes the interference pattern to have an asymmetric shape. Dispersion cancellation occurs in some cases.
@article{arxiv.quant-ph/9812080,
title = {Dispersion in Femtosecond Entangled Two-Photon Interference},
author = {J. Perina, and A. V. Sergienko and B. M. Jost and B. E. A. Saleh and M. C. Teich},
journal= {arXiv preprint arXiv:quant-ph/9812080},
year = {2012}
}