Passive Q-switch Crystals
V3+:YAG crystals is a relatively new material for saturable absorber passive Q-switching in lasers emitting from 1.06 to 1.44 µm, in particular, for 1.3 µm Nd-lasers. Extremely high ground state absorption (GSA) cross section of 7x10-18 cm2 near 1.3 m and negligible excited state absorption (ESA) permits Q-switching of 1.3 and 1.44 m Nd-lasers without intracavity focusing both with flash-lamp and diode-laser pumping. Hangzhou Shalom EO offers the high quality V3+:YAG with laser grade polishing and coatings.