Photoluminescence properties of Nd: LiNbO3 co-doped with ZnO fiber single crystals grown by micro-pulling-down method

The present interest in small compact diode pumped lasers for the blue-green spectral domain has supported research on new solid state laser systems based on non-linear crystals. Nd:LiNbO3 co-doped with ZnO single crystal fibers were grown by micro-pulling-down method which is an advanced method of fiber crystal growth. The grown crystals were free of cracks and homogeneous distributions of the ZnO concentration were observed by electron probe micro-analysis. The absorption bands and changes of photoluminescence properties due to the addition of Nd2O3 and ZnO were investigated.