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Main Title: Numerical optimization of single-mode fiber-coupled single-photon sources based on semiconductor quantum dots
Author(s): Bremer, Lucas
Jimenez, Carlos
Thiele, Simon
Weber, Ksenia
Huber, Tobias
Rodt, Sven
Herkommer, Alois
Burger, Sven
Höfling, Sven
Giessen, Harald
Reitzenstein, Stephan
Type: Article
Abstract: We perform extended numerical studies to maximize the overall photon coupling efficiency of fiber-coupled quantum dot single-photon sources emitting in the near-infrared and O-band and C-band. Using the finite element method, we optimize the photon extraction and fiber-coupling efficiency of quantum dot single-photon sources based on micromesas, microlenses, circular Bragg grating cavities and micropillars. The numerical simulations which consider the entire system consisting of the quantum dot source itself, the coupling lens, and the single-mode fiber, yield overall photon coupling efficiencies of up to 83%. Our work provides objectified comparability of different fiber-coupled single-photon sources and proposes optimized geometries for the realization of practical and highly efficient quantum dot single-photon sources.
Subject(s): single-photon sources
semiconductor quantum dots
photon coupling
finite element method
numerical simulations
Issue Date: 25-Apr-2022
Date Available: 20-Jun-2022
Language Code: en
DDC Class: 530 Physik
Sponsor/Funder: DFG, 390685689, EXC 2046: MATH+: Berlin Mathematics Research Center
DFG, 431314977, GRK 2642: Promovierte Experten für photonische Quantentechnologien
Journal Title: Optics Express
Publisher: Optica
Volume: 30
Issue: 10
Publisher DOI: 10.1364/OE.456777
Page Start: 15913
Page End: 15928
EISSN: 1094-4087
TU Affiliation(s): Fak. 2 Mathematik und Naturwissenschaften » Inst. Festkörperphysik » AG Optoelektronik und Quantenbauelemente
Appears in Collections:Technische Universität Berlin » Publications

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