Generation of infrared photon pairs by spontaneous four-wave mixing in a CS2-filled microstructured optical fiber

Autor: Mina Afsharnia, Saher Junaid, Sina Saravi, Mario Chemnitz, Katrin Wondraczek, Thomas Pertsch, Markus A. Schmidt, Frank Setzpfandt
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Druh dokumentu: article
ISSN: 2045-2322
DOI: 10.1038/s41598-024-51482-0
Popis: Abstract We experimentally demonstrate frequency non-degenerate photon-pair generation via spontaneous four-wave mixing from a novel CS2-filled microstructured optical fiber. CS2 has high nonlinearity, narrow Raman lines, a broad transmission spectrum, and also has a large index contrast with the microstructured silica fiber. We can achieve phase matching over a large spectral range by tuning the pump wavelength, allowing the generation of idler photons in the infrared region, which is suitable for applications in quantum spectroscopy. Moreover, we demonstrate a coincidence-to-accidental ratio of larger than 90 and a pair generation efficiency of about $$10^{-2}$$ 10 - 2 per pump pulse, which shows the viability of this fiber-based platform as a photon-pair source for quantum technology applications.
Databáze: Directory of Open Access Journals
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