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Opt Lett. 2012 Nov 1;37(21):4513-5. doi: 10.1364/OL.37.004513.

CW-lasing and amplification in Tm(3+)-doped photonic crystal fiber rod.

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  • 1CREOL, The College of Optics and Photonics, Orlando, Florida 32816, USA. christian.gaida@uni‑


We report lasing and amplification in a rod type thulium-doped photonic crystal fiber with 80 μm core diameter. The rod is pumped with a 793 nm laser diode and produces more than 20 W output power at a beam quality M(2)<1.3. The laser/amplifier has a slope efficiency of 27.8%/20.1% relative to absorbed pump power with a lasing threshold at 28.6 W. The output wavelength in the lasing configuration can be tuned over 180 nm from 1810-1990 nm.

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