Affiliation:
1. Friedrich-Schiller-University Jena
2. Helmholtz-Institute Jena
3. Fraunhofer Institute for Applied Optics and Precision Engineering
Abstract
High-energy Q-switched master oscillator power amplifier systems based on rod-type 4 × 4 multicore fibers are demonstrated, achieving energy up to 49 mJ in ns-class pulses. A tapered fiber geometry is tested that maintains low mode order in large multimode output cores, improving beam quality in comparison to a similar fiber with no taper. The tapered fiber design can be scaled both in the number of amplifying cores and in the dimensions of the cores themselves, providing a potential route toward joule-class fiber lasers systems.
Funder
Fraunhofer-Gesellschaft
European Research Council
Deutsche Forschungsgemeinschaft
Thüringer Aufbaubank
Bundesministerium für Bildung und Forschung
Subject
Atomic and Molecular Physics, and Optics
Cited by
10 articles.
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