Investigation of optical losses in visible and near-IR range in garnet epitaxial films doped with Cr and Nd-ions

The basic purpose of the study is the development of the methods of manufacturing laser epitaxial films, doped by neodymium and chromium ions for application as active elements and passive Q-switches of neodymium lasers. We present the results of investigations of the gadolinium-gallium (GGG) and gadolinium-scandium-aluminum (GSAG) garnet films grown by liquid phase epitaxy (LPE) method. We have studied spectral and lasing characteristics of the epilayers and the growing conditions influence to the film properties.