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arXiv · 2405.08157

Towards a fiber-optic temporally multiplexed single photon source

Agustina G. Magnoni·Laura T. Knoll·Lina Wölcken·Julián Defant·Julián Morales·Miguel A. Larotonda
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Abstract

We demonstrate the feasibility of implementing a photon source with sub-Poissonian emission statistics through temporal multiplexing of a continuous wave heralded photon source in the optical communications wavelength range. We use the time arrival information of a heralding photon to actively modify the delay of the heralded photon in an all-fiber assembly, in order to synchronize the output with with respect to an external clock. Within this synchronized operating regime we show that the addition of a single temporal correcting stage can improve the figure of merit for single photon emission of a heralded photon source. We obtain a brightness improvement factor of approximately 1.8 and an enhancement of the signal-to-noise ratio, quantified by the coincidence-to-accidental counts ratio. These results, clear the way for integrated optics non-classical photon sources in the optical communication band.

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Agustina G. Magnoni, Laura T. Knoll, Lina Wölcken, Julián Defant, Julián Morales, Miguel A. Larotonda. 2024-05-13. Towards a fiber-optic temporally multiplexed single photon source. https://arxiv.org/abs/2405.08157

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