title: Electro-optic modulation for high-speed characterization of entangled photon pairs.
abstract: We demonstrate a new biphoton manipulation and characterization technique based on electro-optic intensity modulation and time shifting. By applying fast modulation signals with a sharply peaked cross-correlation to each photon from an entangled pair, it is possible to measure temporal correlations with significantly higher precision than that attainable using standard single-photon detection. Low-duty-cycle pulses and maximal-length sequences are considered as modulation functions, reducing the time spread in our correlation measurement by a factor of five compared to our detector jitter. With state-of-the-art electro-optic components, we expect the potential to surpass the speed of any single-photon detectors currently available.
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Lukens
authors.forename: Ogaga D
authors.initials: OD
authors.lastname: Odele
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Leaird
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Weiner