Journal
OPTICS LETTERS
Volume 36, Issue 13, Pages 2402-2404Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.002402
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Funding
- National Natural Science Foundation of China (NSFC) [51025210, 51021062, 60978027]
- Grant for State Key Program of China [2010CB630702]
- Program of Introducing Talents of Discipline (111 Program)
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We report an efficient laser-diode-pumped Tm-doped LuVO4 crystal laser at about 1.9 mu m. For the first time to our knowledge, the pi-polarized Tm:LuVO4 laser was achieved. The maximum output power and slope efficiency were 1.32 W and 28.7%, respectively. By comparison, it has been found that the a-cut Tm: LuVO4 crystal should be more suitable for applications in high-power lasers. The central laser wavelength was observed to be located at about 1.9 mu m and shifted to shorter with the increase of intracavity light intensity, which could be explained based on the reabsorption of light in the Tm: LuVO4 crystal. (C) 2011 Optical Society of America
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