An optically pumped rod laser with a narrow pump sources - emission surface.

摘要

Of the pumping laser diodes 3 are disposed around a tube of the reflector 2, which has a narrow windows 14 opposite the areas of the emission of these diodes and which leaves an annular gap 16 around a bar to be pumped 1. A cooling liquid flows through this gap. / p & & p & the invention applies particularly to the optical pumping of a yag bar.