Growth, spectroscopic properties and laser performance near 2 µM of Tm3+/Ho3+: SrGdGa3O7 crystal
2015
Abstract The Tm 3+ /Ho 3+ : SrGdGa 3 O 7 single crystal was grown by the Czochralski method. The polarized absorption spectra, emission spectra and fluorescence decay curves of the crystal were measured. The crystal exhibited a broad absorption band and a broad emission band, as well as a fluorescence lifetime of 5 I 7 multiplet of Ho 3+ ions up to 8.0 ms. End-pumped by a fiber-coupled diode laser at 808 nm, the laser operation around 2.0 µm has been realized with the a-cut and c-cut crystal samples. The maximum output power is 200 mW when a-cut crystal sample was employed.
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