Laser Frequency Stabilization Based on Spectral-Hole Burning Using Double-Heterodyne Detection

摘要

We report a fractional-frequency stability of $sigma _{mathbf {y}}(au) pprox {1.7 imes 10}$ 15 near 1 s timescale based on a spectral hole burning (SHB) laser frequency stabilization technique using a novel detection scheme that offer $< 10^{-16}$detection noise capability. The current stability level is attributed to residual temperature fluctuations in the cryostat. In addition, we report preliminary results on the measurement of the sensitivity of the spectral hole to uni-axial mechanical strain, which, combined with accelerometric noise measured in our pulse-tube cryostat set the vibration induced fractional stability limit to $< 10^{-17}$, regardless specially designed crystal mounts.¹