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Demonstration of a cw room temperature mid-IR microlaser

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Abstract

We report a demonstration of the first continuous-wave (cw) mid-IR microlaser operating at room temperature (RT). Our whispering-gallery-mode microlaser—operating at 2.71 μm—is based on a heavily erbium-doped high-Q ZBLAN microsphere optically pumped by a 980 nm diode laser; with a threshold pump power of <150μW.

© 2014 Optical Society of America

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