Journal Article10.1364/oe.496206
Single-photon sources based on incomplete binary-tree multiplexers with optimal structure.
Peter Adam,Matyas Mechler +1 more
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TL;DR: Single-photon sources based on incomplete binary-tree multiplexers with optimal structure TLDR: Novel single-photon sources based on optimized incomplete binary-tree multiplexers outperform other types of multiplexers in terms of single-photon probability and low multiphoton noise.
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Abstract: We consider novel types of spatially multiplexed single-photon sources based on output-extended incomplete binary-tree multiplexers containing general asymmetric routers where the construction of the multiplexers takes into account the total transmission efficiencies of the multiplexer arms at which a novel router can be added to the system. After selecting the multiplexer that outperforms the others, we identify the ranges of the loss parameters for which the application of the selected multiplexer leads to single-photon sources with higher single-photon probabilities and lower multiphoton noise than that can be achieved by using asymmetric multiplexers. We show that using the selected multiplexer is especially advantageous in the case of single-mode sources characterized by thermal statistics of the input photon pairs. We also reveal that the application of this multiplexer yields high performance single-photon sources even for suboptimal system sizes that is a typical situation in current experiments.
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Citations
Single-photon sources based on incomplete binary-tree multiplexers with optimized inputs
Peter Adam,Matyas Mechler +1 more
TL;DR: Researchers optimize single-photon sources using incomplete binary-tree multiplexers with varied input photon numbers, achieving higher single-photon probabilities and reduced multiphoton noise, particularly beneficial for low detector efficiencies and certain parameter ranges.
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Single-photon sources based on binary-tree multiplexers built by following a step-by-step optimization
Peter Adam,Matyas Mechler +1 more
TL;DR: Single-photon sources based on optimized binary-tree multiplexers yield higher single-photon probabilities than any spatial multiplexer types discussed in the literature.
2
Photon Number States via Iterated Photon Addition in a Loop
TL;DR: Researchers propose a simple interferometric setup to generate time-bin photon number states via iterated photon additions, achieving reasonable success probabilities and fidelities for up to four photons in a probabilistic process.
Reducing Multiphoton Noise in Multiplexed Single-Photon Sources
TL;DR: Researchers develop a procedure to reduce multiphoton noise in multiplexed single-photon sources by reoptimizing the system for a chosen normalized second-order autocorrelation function, resulting in decreased noise with minimal impact on single-photon probability.
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