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High average power femtosecond pulses at 520 nm via second harmonic generation of a fiber chirped pulse amplification system

: Eidam, T.; Hädrich, S.; Rothhardt, J.; Stutzki, F.; Jansen, F.; Gottschall, T.; Andersen, T.V.; Limpert, J.; Tünnermann, A.

Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid-State Photonics, ASSP 2011. CD-ROM : 13.-16.2.2011, Istanbul, Turkey
Washington, DC: OSA, 2011 (OSA Technical digest series)
Paper FThB2
Conference "Advanced Solid-State Photonics" (ASSP) <2011, Istanbul>
Conference Paper
Fraunhofer IOF ()

We present efficient second harmonic generation of a femtosecond fiber chirped pulse amplification system. At a record average power of 135W and a repetition rate of 5.25MHz we measured a M2 value <1.2.