研究目的
Investigating the fractional-frequency stability of a laser using a spectral hole burning (SHB) technique with a novel detection scheme and measuring the sensitivity of the spectral hole to uni-axial mechanical strain.
研究成果
The improved detection scheme of a spectral hole burning laser frequency stabilization technique and the estimation of the impact of vibrations to the fractional stability were presented. With further improvement in the vibration isolation of the crystal and elimination of the first order of the thermal sensitivity using He-gas background pressure, fractional stability in the low 10–17 is expected to be achieved in the near future.
研究不足
The current instability is attributed to temperature fluctuation of the crystal. This effect may be reduced in the future by appropriate use of background He-gas.
