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

被引：0

作者：

Yu, Yang ^{[1
]}

Li, Chunran ^{[1
]}

Yu, Yanan ^{[1
]}

Tian, Nong ^{[1
]}

Yan, Haochen ^{[2
]}

Luo, Jianyi ^{[1
]}

Xiao, Ting-Hui ^{[3
,4
,5
]}

机构：

[1] Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Peoples R China

[2] Max Planck Inst, Sci Light, D-91058 Erlangen, Germany

[3] Zhengzhou Univ, Sch Phys & Microelect, Henan Key Lab Diamond Optoelect Mat & Devices, Zhengzhou 450052, Peoples R China

[4] Henan Acad Sci, Inst Quantum Mat & Phys, Zhengzhou 450046, Peoples R China

[5] Univ Tokyo, Sch Sci, Dept Chem, Tokyo 1130033, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2024年 / 42卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Microcavities; Couplings; Electric fields; Photonics; Optical fiber communication; Q-factor; Resonant frequency; Microcavity; optical fiber; strong coupling; PHOTON SOURCES; DOT; EFFICIENCY; BAND;

D O I：

10.1109/JLT.2023.3331237

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：2111 / 2117

页数：7

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