Experimental and numerical analysis of high power Er:Yb co-doped fiber amplifiers

Julia R. Limongelli; Scott D. Setzler; Daniel Creeden

doi:10.1117/12.2252300

22 February 2017 Experimental and numerical analysis of high power Er:Yb co-doped fiber amplifiers

Julia R. Limongelli, Scott D. Setzler, Daniel Creeden

Proceedings Volume 10083, Fiber Lasers XIV: Technology and Systems; 100831O (2017) https://doi.org/10.1117/12.2252300
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

We have recently demonstrated an Er:Yb fiber amplifier pumped off-peak at 940 nm which achieved 50.5% slope efficiency compared to 40.2% slope efficiency when pumped on-peak at 976 nm, the typical pumping wavelength for Er:Yb fiber. To further understand these results we implemented a model that predicts the behavior of high power Er:Yb-co-doped fiber amplifiers with strong correlation to data. Through this modeling effort, we were able to estimate the forward and backward energy transfer coefficients for the Er:Yb silicophosphate fiber used. We also conducted a theoretical cutback experiment to find the optimal amplifier fiber length for each pump wavelength.

Conference Presentation

Citation Download Citation

Julia R. Limongelli, Scott D. Setzler, and Daniel Creeden "Experimental and numerical analysis of high power Er:Yb co-doped fiber amplifiers", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100831O (22 February 2017); https://doi.org/10.1117/12.2252300

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