Co 2+ :GSGG as a Saturable Absorber for Resonantly Laser Pumped 1.6 μm Er:YAG Laser

Co:GSGG has excellent spectroscopic properties as a saturable absorber for resonantly laser-pumped 1.6 mum Er:YAG at 1620 nm (RT). Absorption, emission cross sections, lifetimes, modeling results are reported for 3-level gain/4-level absorber.