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Performance demonstration of the PEnELOPE main amplifier HEPA I using broadband nanosecond pulses

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摘要

We report on the energetic and beam quality performance of the second to the last main amplifier section HEPA I of the PEnELOPE laser project. A polarization coupled double-12-pass scheme to verify the full amplification capacity of the last two amplifiers HEPA I and II was used. The small signal gain for a narrow band cw laser was 900 and 527 for a broadband nanosecond pulse, demonstrating 12.6 J of output pulse energy. Those pulses, being spectrally wide enough to support equivalent 150 fs long ultrashort pulses, are shown with an excellent spatial beam quality. A first active correction of the wavefront using a deformable mirror resulted in a Strehl ratio of 76% in the single-12-pass configuration for HEPA I.

Newport宣传-MKS新实验室计划
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作者单位:

    Helmholtz-Zentrum Dresden-Rossendorf
    Helmholtz-Zentrum Dresden-Rossendorf
    Helmholtz-Zentrum Dresden-Rossendorf
    Technische Universitat Dresden

引用该论文

Albach Daniel,Loeser Markus,Siebold Mathias,Schramm Ulrich. Performance demonstration of the PEnELOPE main amplifier HEPA I using broadband nanosecond pulses[J].High Power Laser Science and Engineering,,():.