We present a general theoretical description of the temporal shaping of narrowband noncollinear type-I down-converted photons using a spectral phase filter with a symmetric phase distribution. By manipulating the spectral phase of the signal or idler photon, we demonstrate control of the correlation time and shape of the two-photon wave function with modulation frequency and modulation depth of the phase distribution.
@article{arxiv.quant-ph/0605152,
title = {Phase-modulated shaping of narrowband type-I parametric down-converted photons},
author = {A T Joseph1 and R Andrews1 and E R Pike2 and S Sarkar2},
journal= {arXiv preprint arXiv:quant-ph/0605152},
year = {2007}
}