Due to possessing large nonlinear coefficients(d36=75pm/V), wide infrared transparency range(0.75-12um), high thermal conductivity(0.35W/(cm ·K)), high laser damage threshold(2-5L/cm²) and well machining property, ZnGeP2 crystal was called the king of infrared nonlinear optical crystals and is still the best frequency conversion material for high power, tunable infrared laser generation.

Cryslaser can offer high optical quality ZGP crystals with extremely low absorption coefficient α<0.04/cm(at pump wavelengths 2.0-2.1um), which can caused to generate mid-infrared tunable laser with high efficiency through OPO or OPA process.