Single photon frequency conversion for frequency multiplexed quantum networks in the telecom band

Abstract

High-speed long-range quantum communication requires combining frequency multiplexed photonic channels with quantum memories. We experimentally demonstrate an integrated quantum frequency conversion protocol that can convert between wavelength division multiplexing channels in the telecom range with an efficiency of $55\pm 8\%$ and a noise subtracted HOM dip visibility of 84.5%. This protocol is based on a cascaded second order nonlinear interaction and can be used to interface a broad spectrum of frequencies with narrowband quantum memories, or alternatively as a quantum optical transponder, efficiently interfacing different regions of a frequency-multiplexed spectrum.

arXiv comment5 pages, 4 figures

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Cited by in corpus (11)

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• Nonlinear Domain Engineering for Quantum Technologies
• Faithful quantum teleportation via a nanophotonic nonlinear Bell state analyzer
• Frequency Conversion in High-Pressure Hydrogen
• Frequency conversion in a hydrogen-filled hollow-core fiber using continuous-wave fields
• Frequency conversion to the telecom O-band using pressurized hydrogen
• Perspectives on epitaxial InGaP for quantum and nonlinear optics
• Frequency conversion in a hydrogen-filled hollow-core fiber: power scaling, background, and bandwidth
• QuaNTUM: A Modular Quantum Communication Testbed for Scalable Fiber and Satellite Integration
• 1xN DWDM channel selective quantum frequency conversion
• Fidelity and efficiency analysis for heralded entanglement swapping in lossy channels: linear and nonlinear optical approaches