Raman-free fibered photon-pair source

Raman-scattering noise in silica has been the key obstacle toward the realisation of high quality fiber-based photon-pair sources. Here, we experimentally demonstrate how to get past this limitation by dispersion tailoring a xenon-filled hollow-core photonic crystal fiber. The source operates at roo...

Full description

Saved in:
Bibliographic Details
Published in:Scientific reports 2020-02, Vol.10 (1), p.1650-1650, Article 1650
Main Authors: Cordier, Martin, Delaye, Philippe, Gérôme, Frédéric, Benabid, Fetah, Zaquine, Isabelle
Format: Article
Language:English
Subjects:
Design
Lasers
Optics
Physics
Quantum Physics
Signal to noise ratio
Silica
Silicon
Xenon
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Raman-scattering noise in silica has been the key obstacle toward the realisation of high quality fiber-based photon-pair sources. Here, we experimentally demonstrate how to get past this limitation by dispersion tailoring a xenon-filled hollow-core photonic crystal fiber. The source operates at room temperature, and is designed to generate Raman-free photon-pairs at useful wavelength ranges, with idler in the telecom, and signal in the visible range. We achieve a coincidence-to-accidentals ratio as high as 2740 combined with an ultra low heralded second order coherence [Formula: see text], indicating a very high signal to noise ratio and a negligible multi-photon emission probability. Moreover, by gas-pressure tuning, we demonstrate the control of photon frequencies over a range as large as 13 THz, covering S-C and L telecom band for the idler photon. This work demonstrates that hollow-core photonic crystal fiber is an excellent platform to design high quality photon-pair sources, and could play a driving role in the emerging quantum technology.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-58229-7