Work

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

Year: 2025

Type: article

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.

Source: Optics Express

DOI: 10.1364/oe.549459

Authors: Jed A. Rowland, Christopher Perrella, Rachel F. Offer, Andre N. Luiten, Ben M. Sparkes, Till J. Weinhold

Institutions: Defence Science and Technology Group, The University of Queensland

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Department of Defence, Australian Government, Department of Education, Australian Governement, Australian Research Council, Defence Science and Technology Group