Optimisation of simple quantum illumination

Thomas Brougham; John Jeffers

doi:10.1117/12.3023882

10 June 2024 Optimisation of simple quantum illumination

Thomas Brougham, John Jeffers

Proceedings Volume 12993, Quantum Technologies 2024; 1299309 (2024) https://doi.org/10.1117/12.3023882
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

We investigate the optimization of direct measurement twin beam (signal-idler) quantum illumination. We focus on each of the three main components of such a system in turn: the detectors, the light beam parameters and the information processing protocol. Surprisingly, there can be an advantage to having a signal detector whose quantum efficiency is significantly less than perfect. This advantage does not vanish in the quantum lidar limits of low object reflectivities or signal strengths. We show that decreasing the pulse separation, while keeping the photon flux fixed to retain the same degree of covertness, can improve target detection performance dramatically. Finally, we show that post-selecting on the idler detector firing is sub-optimal for target detection.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Thomas Brougham and John Jeffers "Optimisation of simple quantum illumination", Proc. SPIE 12993, Quantum Technologies 2024, 1299309 (10 June 2024); https://doi.org/10.1117/12.3023882

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