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10 May 2007 High peak power Ytterbium doped diode pumped fiber amplifier system
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We have developed a fiber laser system capable of producing over 100W of average power. We have achieved 1.5mJ/pulse/fiber resulting in peak powers in excess of 2MW with 0.6ns pulses and near diffraction limited beams. In another fiber, we have achieved over 0.5mJ/pulse with pulses of 700ps exceeding 500kW of peak power in polarization maintaining Ytterbium doped fiber. In both cases, wall-plug efficiencies, excluding cooling of the pump diode lasers, in excess of 15% were also achieved. The system we have developed is based in an all fiber design except for the last high peak power isolator requiring free space optics. With the advent of such a component, a scalable 1.5MW/arm all fiber laser system is proven to be possible.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. Madasamy, F. Kimpel, and W. Torruellas "High peak power Ytterbium doped diode pumped fiber amplifier system", Proc. SPIE 6552, Laser Source Technology for Defense and Security III, 65520Q (10 May 2007);

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