Spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers

• URL: http://arxiv.org/abs/2111.12622v1
• Date: Wed, 24 Nov 2021 16:47:39 GMT
• Title: Spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers
• Authors: Peter Adam, Ferenc Bodog, and Matyas Mechler
• Abstract summary: We propose two novel types of spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers. We show that the use of any of the two proposed multiplexing system can lead to higher single-photon probabilities than that achieved with complete binary-tree multiplexers.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose two novel types of spatially multiplexed single-photon sources based on incomplete binary-tree multiplexers. The incomplete multiplexers are extensions of complete binary-tree multiplexers, and they contain incomplete branches either at the input or at the output of them. We analyze and optimize these systems realized with general asymmetric routers and photon-number-resolving detectors by applying a general statistical theory introduced previously that includes all relevant loss mechanisms. We show that the use of any of the two proposed multiplexing system can lead to higher single-photon probabilities than that achieved with complete binary-tree multiplexers. Single-photon sources based on output-extended incomplete binary-tree multiplexers outperform those based on input-extended ones in the considered parameter ranges, and they can in principle yield single-photon probabilities higher than 0.93 when they are realized by state-of-the-art bulk optical elements.

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