Single-frequency mid-infrared chip laser with a sub-hertz Lorentzian linewidth
Optics
2019-09-23 v1
Abstract
A guided-wave chip laser operating in a single longitudinal mode at 2860 nm is presented. The cavity was set in the Littman-Metcalf configuration to achieve single-frequency operation with a side-mode suppression ratio above 33 dB. The chip laser's linewidth was found to be limited by mechanical fluctuations, but its Lorentzian contribution was estimated to be lower than 1 Hz using a heterodyne technique. This demonstration incorporates a high coherence source with the simplicity provided by the compactness of chip lasers.
Cite
@article{arxiv.1909.09544,
title = {Single-frequency mid-infrared chip laser with a sub-hertz Lorentzian linewidth},
author = {Philippe Guay and Jérôme Genest and Vincent Michaud-Belleau and Nicolas Bourbeau Hébert and David G. Lancaster},
journal= {arXiv preprint arXiv:1909.09544},
year = {2019}
}