Abstract

We propose new transition metal (TM)-doped ZnSe/As2S3:As2Se3 composite materials for mid-IR fiber lasers. The composites are the suspension of crystalline micro- and nanosized TM2+:ZnSe or TM2+:ZnS powders in chalcogenide glasses with the refraction index matching. Mid-IR room-temperature lasing of Cr2+:ZnSe/As2S3:As2Se3 microcomposite material is demonstrated at the 2.4μm wavelength.

© 2011 Optical Society of America

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