Abstract
The first measurements of thermally induced depolarization in a [110] oriented cubic crystal at powerful heat release were made. It was demonstrated that depolarization in a crystal with such orientation may be less than in analogous crystals having orientation [001] or [111]. In a TGG crystal, for example, maximum depolarization value was 10% and dropped down to 3% with a further increase of radiation power in full conformity with the theoretical predictions.
Highlights
The power of both, pulsed periodic and cw lasers has grown dramatically in the recent years
The average power of modern solid-state lasers amounts to kilowatts and even tens of kilowatts
The main problem restricting solid-state laser power is unavoidable heat release in active elements due to pump absorption. It leads to changes in refractive index, degradation of laser characteristics, strain, and even to destruction of active element
Summary
The power of both, pulsed periodic and cw lasers has grown dramatically in the recent years. V. Shashkin, "On the problem of depolarization of linearly polarized light by a YAG:Nd3+ laser rod under conditions of thermally induced birefringence," Sov. J. A. Ivanov, "Influence of the orientation of a crystal on thermal polarization effects in high-power solid-state lasers," JETP Lett.
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