Multi-NARP Laser Driving Scheme for Multiplexed Quantum Networks

TL;DR

This paper introduces a Multi-NARP laser scheme that enables simultaneous excitation of multiple quantum emitters for high-bandwidth, multiplexed quantum networks, overcoming previous efficiency and robustness limitations.

Contribution

It extends the NARP scheme to multi-emitter excitation, achieving near-unity photon extraction without polarization filtering and robustness to parameter variations.

Findings

Simultaneous triggering of at least 10 emitters demonstrated

Achieves near-unity photon extraction efficiency

Enables high-bandwidth quantum network development

Abstract

We extend the recently developed NARP scheme for laser-triggered single-photon sources to the simultaneous excitation of multiple emitters with varying transition energies, laying the groundwork for wavelength-division multiplexing in quantum optical networks. Our Multi-NARP scheme does not rely on polarization filtering and thus enables the near-unity extraction efficiency of single photons from each quantum dot. Our approach also offers the advantages of robustness to variations in the laser pulse parameters and immunity to excitation-induced dephasing tied to electron-phonon coupling. We show that simultaneous triggering of at least 10 emitters is possible, enabling the development of high-bandwidth quantum networks.