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Poster De Conférence Année : 2023

Detection Techniques and Fundamental Limits in Frequency Stabilization via Spectral Hole Burning

Résumé

This poster presents the status of the development of an ultra-frequency stable laser via a spectroscopic technique known as Spectral Hole Burning (SHB). In short, we can use a pump laser to imprint, or ’burn’, transmissive spectral lines, or ’spectral holes’, in the otherwise inhomogeneously broadened absorptive spectral sites of a Eu3+ doped Y2SiO5 crystal. We can then lock a probe laser to these narrow spectral features achieving our frequency stabilized laser. Of great concern is the frequency stability of the spectral holes, such as their sensitivity to temperature changes which we characterize here. Additionally, a challenge this experiment faces is the restriction of probe laser power to avoid damaging the spectral features. This sets a relatively high level of shot noise, limiting the detection sensitivity. Here we present our solution to overcome this difficulty by using a multi-spectral- hole probing scheme to average the probing signals of several burned spectral holes.
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Dates et versions

hal-04460577 , version 1 (15-02-2024)

Identifiants

  • HAL Id : hal-04460577 , version 1

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M T Hartman, X Lin, B Pointard, R Le Targat, S Seidelin, et al.. Detection Techniques and Fundamental Limits in Frequency Stabilization via Spectral Hole Burning. Assemblée générale de la Fédération de Recherche FIRST-TF 2023, Nov 2023, Nice, France. 2023. ⟨hal-04460577⟩
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