22 February 2018 Comparison of Tm-doped fiber laser performance as diode pumped at 800 nm and 1620 nm
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Proceedings Volume 10528, Optical Components and Materials XV; 1052808 (2018) https://doi.org/10.1117/12.2296589
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
We compare the laser performance of a low Tm3+-doped silica fiber laser as pumped at 800 nm to one as pumped at 1620 nm. Using 800 nm non-resonant (3H63H4) pumping, 5.5 W of 1940 nm at 32% optical slope efficiency was demonstrated while 1620 nm resonant pumping (3H63F4) yielded 13 W with 55% slope efficiency from the same Tm-doped fiber. We also include experimental results our first demonstration of 1620 nm resonant pumping of a Tm-doped fiber with 15.5 W and 67% slope efficiency using an optimized fiber coupled source.
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G. A. Newburgh, G. A. Newburgh, J. Zhang, J. Zhang, M. Dubinskii, M. Dubinskii, } "Comparison of Tm-doped fiber laser performance as diode pumped at 800 nm and 1620 nm", Proc. SPIE 10528, Optical Components and Materials XV, 1052808 (22 February 2018); doi: 10.1117/12.2296589; https://doi.org/10.1117/12.2296589
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