High peak power ytterbium-doped fiber amplifiers

Autor: William E. Torruellas, M. J. Soileau, B. McIntosh, Mike Messerly, Kanishka Tankala, J. Farroni, David J. Hagan, Jay W. Dawson, Scott Webster, Yi Chen
Rok vydání: 2006
Předmět:
Zdroj: Fiber Lasers III: Technology, Systems, and Applications.
ISSN: 0277-786X
DOI: 10.1117/12.646571
Popis: 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.
Databáze: OpenAIRE