Nd:YAP  AlO3 perovskite (YAP) is a well known host for solid state lasers. The crystal anisotropy of YAP offers numerous advantages.It permits a small tuning of wavelength by varyingthe wave vector direction in the crystal. Furthermore, the output beam is linearly polarised. Advantages of Nd:YAP Crystals: Comparable threshold and slope efficiency at 1079nm to Nd:YAG at 1064nm Higher efficiency at 1340nm compared to Nd:YAG at 1319nm Linearly polarized output beam  Higher absorption in water and body fluid of 1340nm compared to 1319nm