Yb:YAG Crystals

Yb:YAG is a laser crystal formed by doping trivalent ytterbium ions (Yb3+) into a yttrium aluminum garnet (YAG) matrix to generate a 1.03um near-infrared laser. It belongs to the same matrix as Nd:YAG, but due to doping The growth process is different due to the difference.
Ytterbium-doped YAG has a high quantum efficiency (91%), simple crystal spectrum, no excited state absorption and upconversion, and no fluorescence concentration quenching, high doping concentration (up to 30 at.%), and longer fluorescence lifetime. (0.91ms), the absorption band bandwidth (18nm) is much wider than that of Nd:YAG (<4nm), which can be effectively coupled with the pump wavelength of the diode.
Under the same input power, the heat generation of Yb:YAG pump is only 1/4 of that of Nd:YAG. Moreover, YAG matrix has the best comprehensive properties of physicochemical properties, so Yb:YAG has become one of the most attractive solid-state laser media.
LD-pumped high-power Yb:YAG solid-state lasers have become a new research hotspot, and are regarded as a major direction for the development of high-efficiency, high-power solid-state lasers.

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