Details
| Original language | English |
|---|---|
| Pages (from-to) | 14789-14800 |
| Number of pages | 12 |
| Journal | Optics express |
| Volume | 32 |
| Issue number | 8 |
| Publication status | Published - 5 Apr 2024 |
Abstract
Efficient generation of entangled photon pairs at telecom wavelengths is a key ingredient for long-range quantum networks. While embedding semiconductor quantum dots into hybrid circular Bragg gratings has proven effective, it conflicts with p-i-n diode heterostructures which offer superior coherence. We propose and analyze hybrid circular photonic crystal gratings, incorporating air holes to facilitate charge carrier transport without compromising optical properties. Through numerical simulations, a broad cavity mode with a Purcell factor of 23 enhancing both exciton and biexciton transitions, and exceptional collection efficiency of 92.4% into an objective with numerical aperture of 0.7 are achieved. Furthermore, our design demonstrates direct coupling efficiency over 90.5% into a single-mode fiber over the entire telecom C-band. The hybrid circular photonic crystal grating thereby emerges as a promising solution for the efficient generation of highly coherent, polarization-entangled photon pairs.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 32, No. 8, 05.04.2024, p. 14789-14800.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Circular photonic crystal grating design for charge-tunable quantum light sources in the telecom C-band
AU - Chenxi, M. A.
AU - Yang, Jingzhong
AU - Pengji, L. I.
AU - Rugeramigabo, Eddy P.
AU - Zopf, Michael
AU - Ding, Fei
N1 - Funding Information: European Research Council (GA101043851, GA715770); Bundesministerium für Bildung und Forschung (03ZU1209DD, 13N16291, 16KISQ015, 16KISQ117); Deutsche Forschungsgemeinschaft (390837967, EXC-2123, GZ: INST 187/880-1 AOBJ: 683478); Niedersächsisches Ministerium für Wissenschaft und Kultur (76251-1009/2021).
PY - 2024/4/5
Y1 - 2024/4/5
N2 - Efficient generation of entangled photon pairs at telecom wavelengths is a key ingredient for long-range quantum networks. While embedding semiconductor quantum dots into hybrid circular Bragg gratings has proven effective, it conflicts with p-i-n diode heterostructures which offer superior coherence. We propose and analyze hybrid circular photonic crystal gratings, incorporating air holes to facilitate charge carrier transport without compromising optical properties. Through numerical simulations, a broad cavity mode with a Purcell factor of 23 enhancing both exciton and biexciton transitions, and exceptional collection efficiency of 92.4% into an objective with numerical aperture of 0.7 are achieved. Furthermore, our design demonstrates direct coupling efficiency over 90.5% into a single-mode fiber over the entire telecom C-band. The hybrid circular photonic crystal grating thereby emerges as a promising solution for the efficient generation of highly coherent, polarization-entangled photon pairs.
AB - Efficient generation of entangled photon pairs at telecom wavelengths is a key ingredient for long-range quantum networks. While embedding semiconductor quantum dots into hybrid circular Bragg gratings has proven effective, it conflicts with p-i-n diode heterostructures which offer superior coherence. We propose and analyze hybrid circular photonic crystal gratings, incorporating air holes to facilitate charge carrier transport without compromising optical properties. Through numerical simulations, a broad cavity mode with a Purcell factor of 23 enhancing both exciton and biexciton transitions, and exceptional collection efficiency of 92.4% into an objective with numerical aperture of 0.7 are achieved. Furthermore, our design demonstrates direct coupling efficiency over 90.5% into a single-mode fiber over the entire telecom C-band. The hybrid circular photonic crystal grating thereby emerges as a promising solution for the efficient generation of highly coherent, polarization-entangled photon pairs.
UR - http://www.scopus.com/inward/record.url?scp=85190118346&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2401.01447
DO - 10.48550/arXiv.2401.01447
M3 - Article
AN - SCOPUS:85190118346
VL - 32
SP - 14789
EP - 14800
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 8
ER -