Abstract
We report power-scaling of an ytterbium-sensitized thulium-doped silica fiber laser generating up to 75 W of output power in the 2 μm wavelength range when cladding-pumped by a 975 nm diode stack. The slope efficiency is 32% with respect to launched pump power and the beam quality factor (M2) is 1.3. We also investigate the characteristics of this fiber in a tunable laser configuration, operating at ∼10 W of output power with the tuning range extended from 2000 to 2080 nm at a launched pump power of 40 W.
Original language | English |
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Article number | 04 |
Pages (from-to) | 28-35 |
Number of pages | 8 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5620 |
DOIs | |
Publication status | Published - 2004 |
Externally published | Yes |