Presentation
4 October 2022 Efficient semiconductor quantum light sources at telecom wavelength based on hybrid circular Bragg gratings (Conference Presentation)
Andrea Barbiero
Author Affiliations +
Abstract
We fabricate multiple circular Bragg gratings (CBGs) operating in the telecom O-band for Purcell-enhanced single photon emission and investigate the reproducibility with a rigorous characterization. Furthermore, we present a design optimization of CBGs operating around 1550 nm and propose a modified device design directly compatible with electric field control, reporting Purcell factors up to 20 and collection efficiency in NA=0.65 close to 70% for the whole telecom C-band. These results pave the way for the large-scale fabrication of highly efficient semiconductor quantum light sources for long-distance quantum communication systems.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrea Barbiero "Efficient semiconductor quantum light sources at telecom wavelength based on hybrid circular Bragg gratings (Conference Presentation)", Proc. SPIE PC12206, Quantum Nanophotonic Materials, Devices, and Systems 2022, PC122060H (4 October 2022); https://doi.org/10.1117/12.2632375
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KEYWORDS
Semiconductors

Bragg gratings

Light sources

Quantum efficiency

Quantum communications

Quantum dots

Single photon

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