Processeurs atomiques utilisant la propriété de creusement spectral : modélisation et application à l’analyse spectrale radiofréquence large bande sur porteuse optique

Abstract : The Spectral Hole Burning property, found in some rare-earth ion-doped crystals at low temperature is particularly relevant for analogic processing of radiofrequency signals. Indeed, it enables processing functions to be programmed in the crystal’s absorption spectrum.Starting with the first demonstrations of a wideband radiofrequency spectrum analyser, we aim at improving its performances, which requires an accurate modelling of the light-matter interaction and all the perturbations arising from the upgrade in TRL (Technology Readiness Level). Therefore, we have developed a model and extended its validity domain to a broad variety of SHB-based protocols.We applied this model on a particular material, namely a Tm³ ⁺:YAG crystal. After measuring experimentally the relevant intrinsic parameters of this crystal, we applied our model to a protocol which is quite similar to the one of the spectrum analyser we aim at optimizing, namely the engraving of wideband spectral gratings. The comparison of our experimental results to the simulations from our model proved its validity.Finally we applied it to the exact case of the radiofrequency spectrum analyser. With the simulations, we determined how to improve its performances, and particularly increase the dynamic range with realistic experimental parameters.
Document type :
Theses
Complete list of metadatas

Cited literature [50 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01566998
Contributor : Abes Star <>
Submitted on : Friday, July 21, 2017 - 3:06:14 PM
Last modification on : Friday, May 17, 2019 - 11:22:19 AM

File

73371_ATTAL_2017_diffusion.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01566998, version 1

Citation

Yoann Attal. Processeurs atomiques utilisant la propriété de creusement spectral : modélisation et application à l’analyse spectrale radiofréquence large bande sur porteuse optique. Optique [physics.optics]. Université Paris-Saclay, 2017. Français. ⟨NNT : 2017SACLS161⟩. ⟨tel-01566998⟩

Share

Metrics

Record views

2327

Files downloads

446