Undoped Yttrium Aluminium Garnet (Y3Al5O12 or YAG) is a new substrate and optical material that can be used for both UV and IR optics. It is particularly useful for high-temperature and high-energy applications. The mechanical and chemical stability of YA
Erbium and ytterbium co-doped phosphate glass has a broad application because of the excellent properties. Mostly, it is the best glass material for 1.54μm laser due to its eye safe wavelength of 1540 nm and high transmission through atmosphere.
YAP with large density,high mechanical strength, stable chemical properties,not soluble in organic acid, alkali resistance, and has higher thermal conductivity and thermal diffusivity. YAP is a ideal laser substrate crystal.