Thin-disk laser based on an Yb : YAG / YAG composite active element

A thin-disk laser module based on an Yb : YAG / YAG composite active element is developed with a small-signal gain of 1.25 and a stored energy of under cw pumping. The gain and thermally induced phase distortions in the module are studied experimentally. Based on this module, a thin-disk laser with an average power of and a slope efficiency of 42 % is designed.

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