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arXiv · 2210.09826

Independent operation of two waveguide-integrated quantum emitters

Camille Papon·Ying Wang·Ravitej Uppu·Sven Scholz·Andreas Dirk Wieck·Arne Ludwig·Peter Lodahl·Leonardo Midolo
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Abstract

We demonstrate the resonant excitation of two quantum dots in a photonic integrated circuit for on-chip single-photon generation in multiple spatial modes. The two quantum dots are electrically tuned to the same emission wavelength using a pair of isolated $p$-$i$-$n$ junctions and excited by a resonant pump laser via dual-mode waveguides. We demonstrate two-photon quantum interference visibility of $(79\pm2)\%$ under continuous-wave excitation of narrow-linewidth quantum dots. Our work solves an outstanding challenge in quantum photonics by realizing the key enabling functionality of how to scale-up deterministic single-photon sources.

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Camille Papon, Ying Wang, Ravitej Uppu, Sven Scholz, Andreas Dirk Wieck, Arne Ludwig, Peter Lodahl, Leonardo Midolo. 2023-07-04. Independent operation of two waveguide-integrated quantum emitters. https://doi.org/10.1103/physrevapplied.19.l061003

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