Journal
APPLIED PHYSICS B-LASERS AND OPTICS
Volume 91, Issue 1, Pages 71-74Publisher
SPRINGER
DOI: 10.1007/s00340-008-2943-4
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A high-power, continuous-wave 3.5% Tm(3+) doped LiYF(4) (Tm:YLF) laser has been developed. Using two Tm:YLF rods in a single cavity, 55 W of laser output at 1910 nm was obtained with a slope efficiency of 49%. The M(2) factor was found to be < 3. With a single Tm:YLF rod, a maximum laser power of 30 W was obtained with a slope efficiency of 50%. The laser was tuned to the peak absorption wavelength of Ho:YAG of 1907.5 nm by an intracavity quartz etalon with an output power loss < 1 W.
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