100 kW Diode source0 pages

High Efficiency High Power Diode Laser 
Source for pumping application 
The source generates up to 100 kW power at 940 or 980 nm with a pulse width up to 3 ms. The
components have been designed to highest possible efficiency which leads to a low power
consumption, small spectral width and low heat generation. Diodes are collimated in the fast axe
at a pitch of 800 µm (400 µm for 1ms pulse width). The source has 16 stacks, 10 to 20 bars each
depending on the final power requested assembled with very low gap between each stack.

16 bars, 8 kW collimated stack

The source is cooled by standard water (not DI). The water circuit is physically separated from
the diode housing which eliminates any risk of water leakage on stacks (included in QLD
warranties). Low pressure N2 purge is necessary when water temperature is below 20°C.

Thanks to the very low bar pitch a very high brightness (> 4MW/cm²/sr) is achieved without
polarization coupling of stacks. It avoids optical losses and expensive components. Furthermore
the module has a very small volume and safes space on the optical table.. All connectors are
fixed on the back side of the source. Diodes are protected against humidity and dusty parts by a
window with AR coating.