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Conferences > CLEO_SI > 2015 > STu4L > STu4L.4

High Energy Pulse Amplification in a Higher-Order Mode Fiber Amplifier with Axicon for Output Mode Conversion

J.W. Nicholson, J.M. Fini, A. DeSantolo, P.S. Westbrook, R.S. Windeler, T. Kremp, C. Headley, and D.J. DiGiovanni

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Abstract

High energy, 700 μJ, one nanosecond pulses and 490 femtosecond, 50 μJ pulses are demonstrated in an Er-doped, higher-order-mode fiber amplifier. An axicon at the output enables efficient, nonlinearity-free reconversion to a low M2 beam.

© 2015 Optical Society of America

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