Abstract

Room-temperature laser action from Cr2+-doped Cd0.85Mn0.15Te has been demonstrated for what is believed to be the first time. We achieved pulsed laser operation centered at 2.5 µm by pumping into the mid-infrared absorption band of Cr 2+ ions by use of the 1.907-µm output of a H2 Raman-shifted Nd:YAG laser. The output of the free-running Cr2+:Cd0.85 Mn0.15Te laser had a width of 50 nm (FWHM), and the slope efficiency was calculated to be 5.5% under nonoptimum conditions.

© 1997 Optical Society of America

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