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26–30 Aug 2019
Universität Zürich
Europe/Zurich timezone

【568】High-rate photon pairs and sequential Time-Bin entanglement with Si3N4 ring microresonators

28 Aug 2019, 19:00
1h 30m
Lichthof

Lichthof

Poster Quantum Science and Technology Poster Session

Speaker

Farid Samara (Université de Genève)

Description

Integrated photonic sources represent a key building block as practical, low-cost, schemes for quantum communication. In the context of photon pair sources, microring-resonators (MRR) are emerging as a viable solution for integrated photon pair sources with advantages for multiplexing and high dimensional entanglement generation.
By exploiting MRR as a photon pair source, sequential time-bin entanglement is generated with 750 MHz pump rate and interference fringes with raw visibility up to 98%. Detected coincidence counts rate of up to 80 kHz was achieved by relying on low loss commercial telecom filters, and state of the art superconducting single photon detectors. We also present several techniques that we have incorporated to characterise and mitigate noise while improving pump rejection and channel selection.

Primary authors

Farid Samara (Université de Genève) Dr Anthony Martin (University of Geneva) Dr Claire Autebert (University of Geneva) Mr Maxim Karpov Prof. Tobias Kippenberg Prof. Hugo Zbinden (University of Geneva) Rob Thew

Presentation materials

There are no materials yet.