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11 March 2016 Comparison of high power large mode area and single mode 1908nm Tm-doped fiber lasers
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We compare large mode area (LMA) and single-mode (SM) double-clad fiber geometries for use in high power 1908nm fiber lasers. With a simple end-pumped architecture, we have generated 100W of 1908nm power with LMA fiber at 40% optical efficiency and 117W at 52.2% optical efficiency with single-mode fiber. We show the LMA fiber is capable of generating >200W and the SM fiber is capable of >300W at 1908nm. In all cases, the fiber lasers are monolithic power-oscillators with no free-space coupling.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Benjamin R. Johnson, Daniel Creeden, Julia Limongelli, Herman Pretorius, Jon Blanchard, and Scott D. Setzler "Comparison of high power large mode area and single mode 1908nm Tm-doped fiber lasers", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 972810 (11 March 2016);


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