Raman-free fibered photon-pair source
Abstract
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 at the telecom, and signal at a visible range. We achieve a coincidence-to-accidentals ratio (2) as high as 2740 combined with an ultra low heralded g H (0) = 0.002, 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.
Cite
@article{arxiv.2001.01510,
title = {Raman-free fibered photon-pair source},
author = {Martin Cordier and Philippe Delaye and Frédéric Gérôme and Fetah Benabid and Isabelle Zaquine},
journal= {arXiv preprint arXiv:2001.01510},
year = {2020}
}
Comments
9 pages, 5 figures, 1 supplementary