High-power Yb:YAG thin-disk laser with 80% efficiency pumped at the zero-phonon line

Abdullah Alabbadi; Abdullah Alabbadi; Mikhail Larionov; Florian Fink

doi:10.1364/OL.444245

Optics Letters
Vol. 47,
Issue 1,
pp. 202-205
(2022)
•https://doi.org/10.1364/OL.444245

High-power Yb:YAG thin-disk laser with 80% efficiency pumped at the zero-phonon line

Abdullah Alabbadi, Mikhail Larionov, and Florian Fink

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Abdullah Alabbadi, Mikhail Larionov, and Florian Fink, "High-power Yb:YAG thin-disk laser with 80% efficiency pumped at the zero-phonon line," Opt. Lett. 47, 202-205 (2022)

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Abstract

We report a 3-kW thin-disk laser with 80% optical efficiency employing zero-phonon line pumping at 970 nm. A detailed comparison to conventional pumping at 940 nm is provided, which shows almost twice the pump power density handling capability.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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Pump	$η_{a b s}$	$η_{c a v i t y}$	$η_{s t}$	$η_{t h}$	$η_{o p t}$
LD-970	$93.2 %$	$97.6 %$	$94.1 %$	$96.3 %$	$82.4 %$
LD-933	$88.5 %$	$97.6 %$	$90.6 %$	$92.4 %$	$72.3 %$

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Optics Letters