Characterization of Yb:YAG active slab media based on a layered structure with different doping

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F13%3A43896610" target="_blank" >RIV/60461373:22310/13:43896610 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2017380" target="_blank" >http://dx.doi.org/10.1117/12.2017380</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2017380" target="_blank" >10.1117/12.2017380</a>

Result language
angličtina
Original language name
Characterization of Yb:YAG active slab media based on a layered structure with different doping
Original language description
Slabs with non-uniform doping distribution are studied with the aim of reducing thermal deformations in high-energy high-average-power Yb:YAG slab systems. We present a numerical analysis based on Finite Element Mesh (FEM) methods suitable to model non-uniform devices. The thermal variation of the refractive index, the end-faces deformations and the photo-elastic effect have been calculated in order to estimate the total thermal-lens effect. The stress distributions are also obtained. Some results of this numerical approach are compared to experimental thermal lens measurements in a simple geometry for both uniform and structured samples, in order to validate the numerical procedures. Finally we compare numerical simulations for different single- or double-sided pumping and cooling geometries. They show that structured slabs can reduce thermal gradients with respect to uniformly doped means with comparable absorption and geometry. This means a reduction of thermal lens effect and thus
Czech name
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Czech description
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Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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