23 February 2006 High peak power ytterbium doped fiber amplifiers
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Abstract
We have tested a series of Ytterbium doped large core fibers operating near 10Kpps and producing pulses of approximately 1ns. We have achieved 0.85mJ/pulse resulting in peak powers in excess of 2MW with 0.4ns pulses and near diffraction limited beams. In another fiber, we have achieved over 1.5mJ/pulse with pulses of 900ps corresponding to 1.65MW of peak power and M2 of 2.5. In the latter case, wall-plug efficiencies, excluding cooling of the pump diode lasers, in excess of 15% were also achieved. This fiber amplifier has operated for 2 months without any degradation or observed optical damage.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
W. Torruellas, W. Torruellas, Y. Chen, Y. Chen, B. McIntosh, B. McIntosh, J. Farroni, J. Farroni, K. Tankala, K. Tankala, S. Webster, S. Webster, D. Hagan, D. Hagan, M. J. Soileau, M. J. Soileau, M. Messerly, M. Messerly, J. Dawson, J. Dawson, } "High peak power ytterbium doped fiber amplifiers", Proc. SPIE 6102, Fiber Lasers III: Technology, Systems, and Applications, 61020N (23 February 2006); doi: 10.1117/12.646571; https://doi.org/10.1117/12.646571
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