160 W 800 fs Yb:YAG single crystal fiber amplifier without CPA

We demonstrate a compact and simple two-stage Yb:YAG single crystal fiber amplifier which delivers 160 W average power, 800 fs pulses without chirped pulse amplification. This is the highest average power of femtosecond laser based on SCF. Additionally, we demonstrate the highest small signal gain o...

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Bibliographic Details
Published inOptics express Vol. 23; no. 20; pp. 25883 - 25888
Main Authors Markovic, Vesna, Rohrbacher, Andreas, Hofmann, Peter, Pallmann, Wolfgang, Pierrot, Simonette, Resan, Bojan
Format Journal Article
LanguageEnglish
Published United States 05.10.2015
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Summary:We demonstrate a compact and simple two-stage Yb:YAG single crystal fiber amplifier which delivers 160 W average power, 800 fs pulses without chirped pulse amplification. This is the highest average power of femtosecond laser based on SCF. Additionally, we demonstrate the highest small signal gain of 32.5 dB from the SCF in the first stage and the highest extraction efficiency of 42% in the second stage. The excellent performance of the second stage was obtained using the bidirectional pumping scheme, which is applied to SCF for the first time.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.025883