Physics and simulation of optoelectronic devices. Conference

Fiber-confined single-photon source using a single rare-earth ion

Kaito Shimizu, Tomo Osada, Kaoru Sanaka

Published Jan 24, 2025• 0 citations

Abstract

The fiber-coupled single-photon source, which can operate at room temperature, is an essential component for implementing optical quantum communication technologies such as quantum internet and quantum key distribution. Here, we experimentally demonstrated the generation of single photons at room temperature from a single Rare-Earth (RE) ion isolated in the optical tapered fiber. Our single photon source is fabricated based on commercially available RE ion doped fibers, which can be prepared at low cost. To investigate the characteristics of our single-photon source, several optical properties were also observed such as saturation intensity of the single RE ion. Our results will lead to the realization of various photonic quantum information technologies such as optical quantum communication networks.

DOI: 10.1117/12.3040823

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