Abstract: The present invention refers to a method for the quantitative measurement of the pulse laser stability of synthetic fused silica, whereby this method avoids time-consuming and demanding measurements and saves material. First, the absorption of fused silica is measured for different energy densities, and a non-linear function ?1(H) is determined on the basis of the measured values. Second, the fused silica is subject to radiation with a higher energy density up to the point at which a constant absorption value is achieved. In the following, the absorption of the fused silica is measured at different energy densities, and a non-linear function ?2(H) is determined. The difference between the two non-linear functions indicates the increase of absorption that depends on the energy density.

Abstract: The present invention refers to a method for the quantitative measurement of the pulse laser stability of synthetic silica glass, whereby this method avoids time-consuming and demanding measurements and saves material. First, the absorption of silica glass is measured for different energy densities, and a non-linear function ?1 (H) is determined on the basis of the measured values. Second, the silica glass is subject to radiation with a higher energy density up to the point at which a constant absorption value is achieved. In the following, the absorption of the silica glass is measured at different energy densities, and a non-linear function ?2 (H) is determined. The difference between the two non-linear functions indicates the increase of absorption that depends on the energy density.

Abstract: A diode-pumped high performance solid state laser has at least one pump module comprising at least two laser diode arrays which transversely irradiate a solid state laser rod. The path length of the radiation emitted by a laser diode array through the solid state laser rod and the required absorption path for this radiation, determined by the emission wavelength of this radiation and the doping of the laser-active medium, are adapted to one another extensively in different ways.