Comparison of high power large mode area and single mode 1908nm Tm-doped fiber lasers

Benjamin R. Johnson; Daniel Creeden; Julia Limongelli; Herman Pretorius; Jon Blanchard; Scott D. Setzler

doi:10.1117/12.2209677

11 March 2016 Comparison of high power large mode area and single mode 1908nm Tm-doped fiber lasers

Benjamin R. Johnson, Daniel Creeden, Julia Limongelli, Herman Pretorius, Jon Blanchard, Scott D. Setzler

Proceedings Volume 9728, Fiber Lasers XIII: Technology, Systems, and Applications; 972810 (2016) https://doi.org/10.1117/12.2209677
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

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.

Citation Download Citation

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); https://doi.org/10.1117/12.2209677

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