4.6 Article

Continuous-wave laser operation of Tm and Ho co-doped NaY(WO4)2 and NaLu(WO4)2 crystals

Journal

OPTICS EXPRESS
Volume 18, Issue 6, Pages 5413-5419

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OE.18.005413

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Funding

  1. [MAT2008-06729-C02-01]
  2. [EP/D04622X/1]
  3. Engineering and Physical Sciences Research Council [EP/E06440X/1, EP/D04622X/1] Funding Source: researchfish
  4. EPSRC [EP/D04622X/1, EP/E06440X/1] Funding Source: UKRI

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Tetragonal single crystals of NaT(WO4)(2) (T = Y or Lu) co-doped with Tm3+ and Ho3+ ions have been employed for broadly tunable and efficient room-temperature laser operation at around 2 mu m. With Ti:sapphire laser pumping at 795 nm, a slope efficiency and a maximum output power as high as 48% and 265 mW, respectively, have been achieved at 2050 nm from a Tm,Ho:NaY(WO4)(2) crystal. Tuning from 1830 nm to 2080 nm has also been obtained using an intracavity Lyot filter. (C) 2010 Optical Society of America

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