Journal
OPTICS LETTERS
Volume 45, Issue 16, Pages 4511-4514Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.399670
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- Agence Nationale de la Recherche (LABEX-EMC3)
- European Regional Development Fund
- Regional Council ofNormandie (NovaMat)
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This Letter presents the efficient laser operation of a Tm:CaF2 crystal in-band pumped at 1610 nm by an Er-Yb-codoped fiber laser system. A laser slope efficiency of 55% (versus incident pump power) was achieved in a continuous-wave regime, with a maximum output power of 1.25 W at similar to 1.88 mu m in a nearly diffraction-limited beam (M-2 = 1.14). We also demonstrated a continuous tuning range of 180 nm, which extends to short wavelengths down to 1773 nm. (C) 2020 Optical Society of America
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