Ultralow-power single-pass all-optical photon router

Alban Urvoy; J\'er\'emy Berroir; Julien Laurat; Tridib Ray

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Ultralow-power single-pass all-optical photon router

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arxiv 2508.21124 v1 pith:QR7IKPIT submitted 2025-08-28 quant-ph physics.atom-phphysics.optics

Ultralow-power single-pass all-optical photon router

J\'er\'emy Berroir , Tridib Ray , Alban Urvoy , Julien Laurat This is my paper

classification quant-ph physics.atom-phphysics.optics

keywords photonall-opticalapproachatombeamcombiningconfinementcontrolled

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We demonstrate a novel approach for routing guided single photons by combining atom trapping and transverse light confinement with an optical nanofiber. The direction of photon propagation, either reflection or transmission, is controlled by a femtojoule-level beam.

Ultralow-power single-pass all-optical photon router

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