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  4. High-energy Q-switched 16-core tapered rod-type fiber laser system
 
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2022
Journal Article
Title

High-energy Q-switched 16-core tapered rod-type fiber laser system

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.
Author(s)
Aleshire, Christopher
Steinkopff, Albrecht
Klenke, Arno
Jáuregui, César
Kuhn, Stefan  
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Nold, Johannes  
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Haarlammert, Nicoletta  
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Schreiber, Thomas  
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Limpert, Jens  
Friedrich-Schiller-Universität Jena  
Journal
Optics Letters  
DOI
10.1364/OL.454287
Language
English
Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF  
Keyword(s)
  • Fiber amplifiers

  • Fiber lasers

  • Fibers

  • Optical phase conjugation

  • Power amplifiers

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