4.6 Article

Highly efficient 2 μm CW and Q-switched Tm3+:Lu2O3 ceramics lasers in-band pumped by a Raman-shifted erbium fiber laser at 1670 nm

Journal

OPTICS LETTERS
Volume 41, Issue 10, Pages 2298-2301

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.41.002298

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Funding

  1. Russian Academy of Sciences
  2. Ministry of Education and Science of the Russian Federation for Nizhniy Novgorod State University [02.B.49.21.0003]
  3. RFBR [15-42-02654, 14-02-31713 mol_a]

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Highly efficient laser oscillations at 2 mu m were investigated in Tm:Lu2O3 ceramics in-band pumped at 1670 nm by a Raman-shifted erbium fiber laser. Both 23 W CW and 15 W active Q-switched oscillations with 40 ns pulse duration and 15-30 kHz repetition rate were achieved in a high-quality beam. The evolution of two generated waves at 1966 and 2064 nm in dependence on pump power was studied. (C) 2016 Optical Society of America

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