Abstract
Broadly tunable laser action is reported for the (F2+)A center in sodium-doped, additively colored KCl. The laser is continuously tunable from about 1.62 to 1.91 μm, has a continuous-wave threshold of under 10-mW absorbed power, and can be stored for at least limited periods at room temperature without losing its lasing capability.
© 1979 Optical Society of America
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