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arXiv · 2412.13418

Characterization of near-infrared to telecom frequency conversion in a rubidium-filled hollow-core photonic-crystal fiber

Jed A. Rowland·Chris Perrella·Rachel F. Offer·Andre N. Luiten·Ben M. Sparkes·Till J. Weinhold
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Abstract

We 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 to quantum information network infrastructure, with additional modelling required for a full understanding of the extreme atom-light interaction effects present.

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Jed A. Rowland, Chris Perrella, Rachel F. Offer, Andre N. Luiten, Ben M. Sparkes, Till J. Weinhold. 2024-12-18. Characterization of near-infrared to telecom frequency conversion in a rubidium-filled hollow-core photonic-crystal fiber. https://doi.org/10.1364/oe.549459

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