We describe a 88Sr+ ion trap apparatus with the capability to produce high-quality 408 nm photons aimed at distributed quantum computing and networking applications. This instrument confines ion chains using a surface electrode trap with a two-dimensional magneto-optical trap as an atomic source. Several laser systems spanning 400-1100 nm are used to achieve high fidelity state preparation and readout. Photons are produced via the decay of an exited state, which is accessed using a custom 408 nm laser system that produces 150 ps optical pulses using non-linear photonics. We demonstrate single photon production through a Hanbury Brown-Twiss measurement for one to six ions.
@article{arxiv.2507.02108,
title = {88Sr+ ion trap apparatus for generating 408 nm photons},
author = {Jianlong Lin and Mari Cieszynski and William Christopherson and Darman Khan and Lintao Li and Elizabeth Goldschmidt and Brian DeMarco},
journal= {arXiv preprint arXiv:2507.02108},
year = {2025}
}
Comments
8 pages, LaTeX; corrected a name in the acknowledgements