TL;DR
This paper explores how high-speed light modulators can influence the correlation and measurement of time-energy entangled photons, revealing effects of modulation on entanglement properties and proposing a Fourier measurement technique.
Contribution
It demonstrates the impact of phase and amplitude modulators on entangled photon correlations and introduces a Fourier method for biphoton wave function measurement with slow detectors.
Findings
Temporal modulation can negate or enhance entanglement correlations.
Phase modulators affect frequency domain correlations.
Amplitude modulators enable biphoton wave function measurement.
Abstract
We consider ramifications of the use of high speed light modulators to questions of correlation and measurement of time-energy entangled photons. Using phase modulators, we find that temporal modulation of one photon of an entangled pair, as measured by correlation in the frequency domain, may be negated or enhanced by modulation of the second photon. Using amplitude modulators we describe a Fourier technique for measurement of biphoton wave functions with slow detectors.
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