Koninklijke Philips Corporation N.v.

Matthias Alexander Wilhelm Fechner

Ulrich Weichmann

Fabian Reichert

Gunter Huber

Herbert Walter Klaus Petermann

The invention relates to a laser () for emitting laser light in the visible spectral range. A rare earth doped anisotropic crystal () comprising a-transition is arranged within a laser resonator (), and a pumping light source () pumps the crystal () for generating laser light in the visible spectral range by using the-transition. The-transition of the rare earth doped anisotropic crystal comprises an absorption band extending over several nm. Thus, pump light having a wavelength within a relatively broad wavelength range can be used. This reduces the requirements with respect to the wavelength accuracy of the pumping light source and, thus, more pumping light sources of an amount of produced pumping light sources can be used for assembling the laser, thereby reducing the amount of rejects.

Growing community of inventors

Hamburg, Germany

Matthias Alexander Wilhelm Fechner