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Frequency-stabilization to 6x10-16 via spectral-hole burning



Michael J. Thorpe, Tara M. Fortier, Matthew S. Kirchner, Till P. Rosenband, Lars Rippe


We demonstrate two-stage laser stabilization based on a combination of Fabry-Pérot and spectral-hole burning techniques. The laser is first pre-stabilized by the Fabry-Pérot cavity to a fractional-frequency stability of ςy(τ) -13. A pattern of spectral holes written in the absorption spectrum of Eu3+:Y2SiO5 serves to further stabilize the laser to ςy(τ) = 6 × 10-16. Measurements characterizing the frequency sensitivity of Eu3+:Y2SiO5 spectral holes to environmental perturbations suggest that they can be more frequency-stable than Fabry-Pérot cavities.
Nature Photonics


Laser local oscillator, Laser stabilization, Spectral-hole burning
Created September 11, 2011, Updated February 19, 2017