Preparation of composite materials for fiber optics based on chalcogenide glasses containing ZnS(ZnSe):Cr(2+) crystals

The results of the preparation and investigation of a new class of materials for middle IR fiber lasers on the basis of chalcogenide glasses with microcrystal phases of ZnS(ZnSe):Cr(2 +) are discussed. Optical properties of these systems demonstrate the possibility of the creation of active fiber near to wavelength of 2 μm.

► The preparation method of ZnS(ZnSe):Cr(+ 2)-doped As2S3 was developed.
► The luminescence of fiber near to wavelength 2 μm was achieved.
► The nature of optical losses of bulk preforms and fibers has been considered.