Power scaling of GaSb-based semiconductor disk lasers for the 2.X µm wavelength range

In this paper, we will present our results on different high-power GaSb- based optically pumped semiconductor disk lasers (OPSDLs) emitting in the 1.9-2.8 µm wavelength range, with the emphasis on the power scaling capability of these long-wavelength laser by using the following different concepts: increasing the pumped area, using multiple gain chips and using in-well pumped structures.