Hong-Ou-Mandel visibility metrology of stochastic phase-matching noise in spontaneous parametric downconversion crystals.
We propose a protocol for probing mechanically induced stochastic phase-matching fluctuations in spontaneous parametric downconversion (SPDC) by Hong-Ou-Mandel (HOM) interferometry. The analysis is formulated for collinear type-II SPDC in β-barium borate (BBO). We distinguish the ideal white-jerk limit from the experim...