Dispersion in femtosecond entangled two-photon interference
Jan Peřina, Alexander V. Sergienko, Bradley M. Jost, Bahaa E. A. Saleh, Malvin Carl Teich · Physical Review A · 1999
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.