Complete conversion between one and two photons in nonlinear waveguides: theory of dispersion engineering

Autor: Alexander S Solntsev, Sergey V Batalov, Nathan K Langford, Andrey A Sukhorukov
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: New Journal of Physics, Vol 24, Iss 6, p 065002 (2022)
Druh dokumentu: article
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ac7348
Popis: High-efficiency photon-pair production is a long-sought-after goal for many optical quantum technologies, and coherent photon conversion (CPC) processes are promising candidates for achieving this. We show theoretically how to control coherent conversion between a narrow-band pump photon and broadband photon pairs in nonlinear optical waveguides by tailoring frequency dispersion for broadband quantum frequency mixing. We reveal that complete deterministic conversion as well as pump-photon revival can be achieved at a finite propagation distance. We also find that high conversion efficiencies can be realised robustly over long propagation distances. These results demonstrate that dispersion engineering is a promising way to tune and optimise the CPC process.
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