Abstract

Garnet crystals of the composition Gd3Ga5O12:Nd3+ (concentration series CNd = 1–10 at. %) were grown from flux. In terms of spectroscopy, these crystals, unlike those grown from melts, form medium with a single activator center. For the first time, continuous-wave lasing was excited by diode pumping with the use of Gd3Ga5O12:Nd3+ crystals at the wavelengths λ3 = 1.3315 and λ4 = 1.3370 μm of the 4F3/2 → 4I13/2 channel and also the simultaneous generation at two wavelengths, λ1 = 1.0621 and λ2 = 1.0600 μm, of the 4F3/2 → 4I11/2 channel.

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