Abstract

We performed simulations and experiments of wavefront distortions induced by propagating through diode-pumped square-section amplifying laser rods of Nd-doped phosphate glass and ${0.5}\% {\rm Nd}:{5}\% {\rm Lu}:{\rm CaF}_2$. We observed that depending on the material, wavefront distortions’ profile can vary from a circular lens-like distortion to a complex astigmatic distortion. We showed that this difference comes from the relative sign of piezo-optic tensor coefficients.

© 2020 Optical Society of America

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