Abstract

Six-μm laser generation at room temperature was achieved from ${\mathrm{Fe}}^{2+}$-doped ${\mathrm{Cd}}_{1-x}{\mathrm{Mn}}_x\mathrm{Te}$ solid-solution active media for the first time, to the best of our knowledge. Laser properties of ${\mathrm{Fe}}^{2+}\text{:}{\mathrm{Cd}}_{1-x}{\mathrm{Mn}}_x\mathrm{Te}$ crystals with various concentrations of manganese Mn ($x=0.1$, 0.52, 0.56, 0.68, and 0.76) were investigated. The increase of Mn content in these crystals was shown to result in an almost similar long-wavelength shift of absorption, fluorescence, and laser output spectra of about $\sim 60\mathrm{nm}$ per each 10% of Mn. Laser generation was achieved in all crystals with maximum output energies up to 30 μJ (for $x=0.52$). The laser central oscillation wavelength is significantly influenced by Mn concentration and varies in the range from 5400 nm up to 6000 nm.

© 2018 Optical Society of America

Spectral and lasing characteristics of Fe:Cd_1-xMn_xTe (x = 0.1 – 0.76) crystals in the temperature range 77 to 300 K

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