|Material||V3+:YAG Crystals||Orientation||<100> <+/-0.5°|
|Optical Density||0.1-0.8||Absorption Coefficient||1.0cm-1 - 7.0cm-1|
|Transmittance||30%-97%||Absorption Cross Section||2.8x10-18cm2(at 1.34µm)|
|Perpendicular||5′||Surface Quality||10/5 S/D|
|Wavefront Distortion||Lambda/8 @ 632nm||Flatness||Lambda/8 @ 632nm|
|Aperture||>90%||Chamfer||<0.2 x 45°|
|HR Coating||<= 0.2% (@ 1340nm)||Damage Threshold||>500MW/cm2|
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. V:YAG has a good chemical stability and thermal conductivity, it is UV resistant and high damage threhold.
Hangzhou Shalom EO offers the high quality V3+:YAG with laser grade polishing and coatings.