Active Temporal Multiplexing of Photons
Abstract
Photonic qubits constitute a leading platform to disruptive quantum technologies due to their unique low-noise properties. The cost of the photonic approach is the non-deterministic nature of many of the processes, including single-photon generation, which arises from parametric sources and negligible interaction between photons. Active temporal multiplexing - repeating a generation process in time and rerouting to single modes using an optical switching network - is a promising approach to overcome this challenge and will likely be essential for large-scale applications with greatly reduced resource complexity and system sizes. Requirements include the precise synchronization of a system of low-loss switches, delay lines, fast photon detectors, and feed-forward. Here we demonstrate temporal multiplexing of 8 'bins' from a double-passed heralded photon source and observe an increase in the heralding and heralded photon rates. This system points the way to harnessing temporal multiplexing in quantum technologies, from single-photon sources to large-scale computation.
Cite
@article{arxiv.1503.01215,
title = {Active Temporal Multiplexing of Photons},
author = {Gabriel J. Mendoza and Raffaele Santagati and Jack Munns and Elizabeth Hemsley and Mateusz Piekarek and Enrique Martin-Lopez and Graham D. Marshall and Damien Bonneau and Mark G. Thompson and Jeremy L. O'Brien},
journal= {arXiv preprint arXiv:1503.01215},
year = {2015}
}
Comments
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