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 wavefunction with modulation frequency and modulation depth of the phase distribution.
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Joseph et al. (2006) studied this question.
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