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12  mJ kW-class ultrafast fiber laser system using multidimensional coherent pulse addition. | LitMetric

An ultrafast fiber-chirped-pulse amplification system using a combination of spatial and temporal coherent pulse combination is presented. By distributing the amplification among eight amplifier channels and four pulse replicas, up to 12 mJ pulse energy with 700 W average power and 262 fs pulse duration have been obtained with a system efficiency of 78% and excellent beam quality. To the best of our knowledge, this is the highest energy achieved by an ultrafast fiber-based laser system to date.

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http://dx.doi.org/10.1364/OL.41.003343DOI Listing

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