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arXiv · 1607.08873

Thin-disk laser scaling limit due to thermal-lens induced misalignment instability

Karsten Schuhmann·Klaus Kirch·Francois Nez·Randolf Pohl·Aldo Antognini
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Abstract

We present an obstacle in power scaling of thin-disk lasers related with self-driven growth of misalignment due to thermal lens effects. This self-driven growth arises from the changes of the optical phase difference at the disk caused by the excursion of the laser eigen-mode from the optical axis. We found a criterion based on a simplified model of this phenomenon which can be applied to design laser resonators insensitive to this effect. Moreover, we propose several resonator architectures which are not affected by this effect.

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Karsten Schuhmann, Klaus Kirch, Francois Nez, Randolf Pohl, Aldo Antognini. 2016-07-29. Thin-disk laser scaling limit due to thermal-lens induced misalignment instability. https://doi.org/10.1364/ao.55.009022

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