Strong Coupling Between in-Fiber Microcavity and Single Quantum Emitter for Long-Distance Quantum Communication - INSPIRE

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Strong Coupling Between in-Fiber Microcavity and Single Quantum Emitter for Long-Distance Quantum Communication

Yang Yu
(
- Wuyi U., Jiangmen
)
,
Chunran Li
(
- Wuyi U., Jiangmen
)
,
Yanan Yu
(
- Wuyi U., Jiangmen
)
,
Nong Tian
(
- Wuyi U., Jiangmen
)
,
Haochen Yan
(
- MPI Sci. Light, Erlangen
)

Mar 15, 2024

7 pages

Published in:

J.Lightwave Tech. 42 (2024) 6, 2111-2117

Published: Mar 15, 2024

DOI:

10.1109/JLT.2023.3331237

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Abstract: (IEEE)

High-performance single-photon sources (SPSs) are essential components for quantum information technology and have been realized by strong coupling between a single quantum emitter and an optical cavity. However, the configurations of conventional SPSs are not ideal for long-distance quantum communication as they are intrinsically incompatible with optical fibers. Here we propose and design a strong-coupling system based on a single quantum emitter directly coupled with an in-fiber microcavity. The in-fiber microcavity not only achieves a high coupling efficiency of 83% and a high Purcell factor of 360, but also pushes the coupling system to enter the strong-coupling region with a vacuum Rabi splitting up to 4.35 meV. This enables a high quantum efficiency of 99% for a SPS. Our work presents a promising platform for realizing high-performance SPSs for long-distance quantum communication.

Microcavities
Couplings
Electric fields
Photonics
Optical fiber communication
Q-factor
Resonant frequency
Strong Coupling
Quantum Information
Long-distance Communication

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Figures(0)

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