On-demand single photon emission in the telecom C-band from nanowire-based quantum dots

TL;DR

This paper demonstrates on-demand single photon emission at telecom wavelengths using nanowire quantum dots, achieving high purity and paving the way for scalable quantum communication technologies.

Contribution

It introduces a method for creating position-controlled nanowire quantum dots emitting at telecom wavelengths with high purity, advancing scalable quantum photon sources.

Findings

Single photon purity g(2)(0) = 0.062

Emission wavelength > 1530 nm

Progress towards scalable quantum emitters

Abstract

Single photon sources operating on-demand at telecom wavelengths are required in fiber-based quantum secure communication technologies. In this work we demonstrate single photon emission from position-controlled nanowire quantum dots emitting at {\lambda} > 1530 nm. Using above-band pulsed excitation, we obtain single photon purities of g(2)(0) = 0.062. These results represent an important step towards the scalable manufacture of high efficiency, high rate single photon emitters in the telecom C-band.