Efficient generation of single photons is one of the key challenges of building photonic quantum technology, such as quantum computers and long-distance quantum networks. Photon source multiplexing -- where successful pair generation is heralded by the detection of one of the photons, and its partner is routed to a single mode output -- has long been known to offer a concrete solution, with output probability tending toward unity as loss is reduced. Here, we present a temporally multiplexed integrated single photon source based on a silicon waveguide and a low-loss fibre switch and loop architecture, which achieves enhancement of the single photon output probability of 4.5±0.5, while retaining g(2)(0)=0.01.
@article{arxiv.2207.02647,
title = {Enhancement of a silicon waveguide single photon source by temporal multiplexing},
author = {Jeremy C. Adcock and Davide Bacco and Yunhong Ding},
journal= {arXiv preprint arXiv:2207.02647},
year = {2022}
}