Yb:YAG is one of the most promising laser-active material and more suitable for diode-pumping than the traditional Nd-doped systems. Compared with the commonly used Nd:YAG crystal, Yb:YAG crystal has a much larger absorption bandwidth to reduce thermal management requirement for diode lasers, a longer upper-laser level lifetime, three to four times lower thermal loading per unit pump power. Yb:YAG crystal is expected to replaced Nd:YAG crystal for high power diode-pumped lasers and other potential applications.

Advantage of Yb:YAG crystals

Very low fractional heating, less than 11%
Very high slope efficiency
Broad absorption bands, about 8nm@940nm
No excited-state absorption or up-conversion
Conveniently pumped by reliable InGaAs diodes at 940nm (or 970nm)
High thermal conductivity and large mechanical strength
High optical quality

Specifications: