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Fibre-coupled semiconductor single-photon source for secure quantum-communication in the 1.3 µm range

Lupe

The project's ultimate goal is to develop a practical and efficient single-photon source with an optically excited semiconductor quantum dot as an emitter, which will provide single photons on demand and will be suitable for local-area secure data transfer (e.g., quantum key distribution - QKD) in the 2nd telecommunication window (1.3 µm range).

The project is part of the 2nd 'Poland - Berlin' call "Photonic Components and Systems for Production und Measurement in the fields of Communication, Medicine, Lighting and Security".

Partners:

JCMwave GmbH, Berlin, Germany

PicoQuant GmbH, Berlin, Germany

Wroclaw University of Technology, Wroclaw, Poland

Marie Curie-Skłodowska University, Lublin, Poland

P.H. ELMAT Sp. z. o.o., Rzeszow, Poland

Lupe

Funded by:

European Regional Development Fund (EFRE) of the European Union in the framework of the programme to promote research, innovation and technologies (Pro FIT).

Publications:

A. Musial et al., Plug&play fibre-coupled 73 kHz single-photon source operating in the telecom O-band, ArXiv e-prints, 1912.10351 (2019)
P. Podemski et al., {Interplay between emission wavelength and s-p splitting in MOCVD-grown InGaAs/GaAs quantum dots emitting above 1.3 μm, Applied Physics Letters 116, 023102 (2020)
P. Mrowiński et al., Excitonic complexes in MOCVD-grown InGaAs/GaAs quantum dots emitting at telecom wavelengths, Phys. Rev. B 100, 115310 (2019)
K. Żołnacz et al., Method for direct coupling of a semiconductor quantum dot to an optical fiber for single-photon source applications, Opt. Express 27, 26772-26785 (2019)
P. Podemski et al., Tailoring the emission wavelength and s-p splitting in MOCVD-grown InGaAs/GaAs quantum dots emitting above 1.3 µm, ArXiv e-prints, 1908.05206 (2019)
P. Mrowinski et al., Excitonic complexes in MOCVD-grown GaAs-based quantum dots emitting at telecom wavelengths, ArXiv e-prints, 1811.01364 (2018)
N. Srocka et al., Enhanced photon-extraction efficiency from InGaAs/GaAs quantum dots in deterministic photonic structures at 1.3 μm fabricated by in-situ electron-beam lithography, AIP Advances 8, 085205 (2018)
P.-I. Schneider et al., Numerical optimization of the extraction efficiency of a quantum-dot based single-photon emitter into a single-mode fiber, Opt. Express, OSA, 26, 8479-8492 (2018)
S. Fischbach et al.,Single Quantum Dot with Microlens and 3D-Printed Micro-objective as Integrated Bright Single-Photon Source, ACS Photonics 4, 1327-1332 (2017)

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