Characterization of near-infrared to telecom frequency conversion in a rubidium-filled hollow-core photonic-crystal fiber
Date
2025
Authors
Rowland, J.A.
Perrella, C.
Offer, R.F.
Luiten, A.N.
Sparkes, B.M.
Weinhold, T.J.
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Journal article
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Optics Express, 2025; 33(8):18076-18088
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Jed A. Rowland, Christopher Perrella, Rachel F. Offer, Andre N. Luiten, Ben M. Sparkes, and Till J. Weinhold
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Abstract
We experimentally investigate near-infrared to telecommunications frequency conversion via a diamond four-wave mixing scheme in rubidium vapor contained within a hollow-core photonic-crystal fiber. The strong light-atom interaction in the fiber results in lower pump power requirements and higher conversion efficiency than can be achieved under equivalent conditions in a rubidium vapor cell. We also observe non-intuitive pump and signal frequency dependence of the four-wave mixing efficiency in the fiber due to the large nonlinearities present in the system. These results indicate the potential for hollow-core fibers to provide a scalable solution for quantum information network infrastructure, with additional modelling required for a full understanding of the extreme atom-light interaction effects present
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© 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement