Carl-zeiss-stiftung

Ralf Peter

Joachim Heppner

Klaus-P Koch

Willibald Appt

The invention is directed to an intracavity Raman laser with a collimated beam path in the Raman medium 10. The intracavity Raman laser includes a single-mode Stokes resonator, a mode stop 13, a telescope 3 for adapting the laser rod 20, a single mode also for the pump laser and a deflecting mirror system 4 for a more compact arrangement. The mode volumes of the pump laser and the Stokes resonator are matched.

Intracavity raman laser

The invention is directed to a method and arrangement for detecting edges and bores on a workpiece with an optical probe head. The optical probe head is guided with constant beam power over the workpiece surface for detecting the edges and bores. In addition to the distance signal of the probe head, the intensity of the radiation backscattered from the workpiece is determined and stored. With the intensity values simultaneously stored with the coordinates of the workpiece surface in the region of the edges and bores, the coordinates of the edges and bores are determined from abrupt changes of the trace of the intensity.

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Aalen, Germany

Ralf Peter