Low threshold pump power and high integration in Al2O3:Er3+ slot waveguide laser on SOI

We numerically investigate the potential of Al2O3:Er3+ active slot waveguides for realizing small-form factor lasers on silicon-on-insulator. Based on recent technological
improvements in the reliable and low-cost fabrication of alumina doped with high Er3+ concentration, we point out the possibility of realizing silicon compatible emitters at 1550nm, optically pumped at 1480 nm with a few milliwatts threshold pump power.