Watt-class injection-locked diode laser system at 399 nm for atomic physics
Atomic Physics
2026-04-15 v2 Optics
Abstract
We demonstrate an injection-locked 399 nm laser system with up to 1 W output power and a locked power fraction of 0.57. The system consists of a high power, multimode diode laser that is seeded by 5 mW from a single-mode external cavity diode laser. The locked high-power laser inherits the frequency agility and linewidth of the seed laser with 3.9 kHz broadening. With active stabilization, the injection lock can be maintained for more than a day. We verify the utility of this system for atomic physics by performing spectroscopy of an ytterbium atomic beam.
Cite
@article{arxiv.2512.20766,
title = {Watt-class injection-locked diode laser system at 399 nm for atomic physics},
author = {Rose Ranson and Yifan Zhou and Michael Hesford and Jack Drouin and Dhruv Azad and Michalis Panagiotou and Chris Overstreet},
journal= {arXiv preprint arXiv:2512.20766},
year = {2026}
}
Comments
4 pages, 4 figures