Diode pumped thin ceramic slab Nd:YAG laser with 230 W average power and 43 conversion efficiency

摘要

In the last ten years we have been working on the design, construction and testing of several diode pumped solid state lasers with various formats, all based on a thin slab ceramic active medium. We adopted different cooling and pumping schemes. A novel configuration with passive cooling, edge-pumping and edge zig-zagged internal propagation has recently shown a high conversion efficiency (43% optical conversion and 60% slope) at a 230 W CW extraction level.