Journal
OPTICA
Volume 4, Issue 6, Pages 655-658Publisher
OPTICAL SOC AMER
DOI: 10.1364/OPTICA.4.000655
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Funding
- National Science Foundation (NSF) [ECCS1407620]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1407620] Funding Source: National Science Foundation
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We investigate the time-frequency signatures of an on-chip biphoton frequency comb (BFC) generated from a silicon nitride microring resonator. Using a Franson interferometer, we examine the multifrequency nature of the photon pair source in a time entanglement measurement scheme; having multiple frequency modes from the BFC results in a modulation of the interference pattern. This measurement together with a Schmidt mode decomposition shows that the generated continuous variable energy-time entangled state spans multiple pair-wise modes. Additionally, we demonstrate nonlocal dispersion cancellation, a foundational concept in time-energy entanglement, suggesting the potential of the chip-scale BFC for large-alphabet quantum key distribution. (C) 2017 Optical Society of America
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