Journal
OPTICS LETTERS
Volume 43, Issue 9, Pages 2018-2021Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.43.002018
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Funding
- National Science Foundation (NSF) [1522933]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1522933] Funding Source: National Science Foundation
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We study theoretically the generation of photon pairs with controlled spectral correlations via the four-wave mixing process in graded-index multimode optical fibers (GIMFs). We show that the quantum correlations of the generated photons in GIMFs can be preserved over a wide spectral range for a tunable pump source. Therefore, GIMFs can be utilized as quantum-state-preserving tunable sources of photons. In particular, we have shown that it is possible to generate factorable two-photon states, which allow for heralding of pure-state single photons without the need for narrowband spectral post filtering. We also elaborate on the possibility of simultaneously generating correlated and uncorrelated photon pairs in the same optical fiber. (C) 2018 Optical Society of America.
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