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High-Purity Triggered Single-Photon Emission from Symmetric Single InAs/InP Quantum Dots around the Telecom C-Band Window

The authors demonstrate pure triggered single‐photon emission from quantum dots (QDs) around the telecommunication C‐band window, with characteristics preserved under non‐resonant excitation at saturation, that is, the highest possible, lifetime‐limited emission rates. The direct measurement of emission dynamics reveals photoluminescence decay times in the range of (1.7–1.8) ns corresponding to maximal photon generation rates exceeding 0.5 GHz. The measurements of the second‐order correlation function exhibit, for the best case, a lack of coincidences at zero time delay—no multiple photon events are registered within the experimental accuracy. This is achieved by exploiting a new class of low‐density and in‐plane symmetric InAs/InP QDs grown by molecular beam epitaxy on a distributed Bragg reflector, perfectly suitable for non‐classical light generation for quantum optics experiments and quantum‐secured fiber‐based optical communication schemes.

Classification / Keywords
Sponsor
Gefördert im Rahmen des Projekts DEAL
Citation
In: Advanced Quantum Technologies 2020 / Volume 3 (2019-11-07) , S. 1900082; ISSN 2511-9044
Collections
@article{doi:10.17170/kobra-202002141002,
  author    ={Musial, Anna and Holewa, Pawel and Wyborski, Pawel and Syperek, Marcin and Kors, Andrei and Reithmaier, Johann Peter and Sęk, Grzegorz and Benyoucef, Mohamed},
  title    ={High-Purity Triggered Single-Photon Emission from Symmetric Single InAs/InP Quantum Dots around the Telecom C-Band Window},
  keywords ={530 and Quantenpunkt},
  copyright  ={https://rightsstatements.org/page/InC/1.0/},
  language ={en},
  journal  ={Advanced Quantum Technologies},
  year   ={2019-11-07}
}