# 1.5 μm lasers with sub 10 mHz linewidth

@article{Legero201715L,
title={1.5 $\mu$m lasers with sub 10 mHz linewidth},
author={T. Legero and D. Matei and S. H{\"a}fner and C. Grebing and R. Weyrich and F. Riehle and U. Sterr and W. Zhang and J. Robinson and L. Sonderhouse and E. Oelker and J. Ye},
journal={2017 Conference on Lasers and Electro-Optics (CLEO)},
year={2017},
pages={1-2}
}
• T. Legero, +9 authors J. Ye
• Published 2017
• Physics, Medicine
• 2017 Conference on Lasers and Electro-Optics (CLEO)
We report on two ultrastable lasers stabilized to single-crystal silicon Fabry-Pérot cavities at 124 K. The lasers show unprecedented thermal noise-limited frequency instabilities of 4×10<sup>−17</sup> and linewidths below 10 mHz.
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