High energy oscillator-amplifier with tapered rod-type multicore fiber

Aleshire C, Steinkopff A, Karst M, Klenke A, Jauregui-Misas C, Kuhn S, Nold J, Haarlammert N, Schreiber T, Limpert J (2022)

Publication Type: Conference contribution

Publication year: 2022

Journal

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers (SPIE)

Publisher: SPIE

Book Volume: 11981

Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering

Event location: Virtual, Online

ISBN: 9781510648333

DOI: 10.1117/12.2609569

Abstract

In-house fabricated Ytterbium-doped rod-type multicore fibers (MCFs) with 4x4 cores were used to generate and amplify ns-class pulses to energies up to 37 mJ. Amplification was compared using tapered and untapered MCFs with large multimode output cores using a Q-switched MCF oscillator as seed source. The tapered fiber improves beam quality (average M2 = 1.56) while maintaining a large waveguide mode area for suppression of nonlinear effects and increased amplification per unit length. These all-glass MCFs can facilitate energy and power scaling in compact high power coherently combined amplifier systems.

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) Fraunhofer-Institut für Angewandte Optik und Feinmechanik (IOF) / Fraunhofer Institute for Applied Optics and Precision Engineering DE Germany (DE)

How to cite

APA:

Aleshire, C., Steinkopff, A., Karst, M., Klenke, A., Jauregui-Misas, C., Kuhn, S.,... Limpert, J. (2022). High energy oscillator-amplifier with tapered rod-type multicore fiber. In Cesar Jauregui-Misas, V. R. Supradeepa (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. Virtual, Online: SPIE.

MLA:

Aleshire, Christopher, et al. "High energy oscillator-amplifier with tapered rod-type multicore fiber." Proceedings of the Fiber Lasers XIX: Technology and Systems 2022, Virtual, Online Ed. Cesar Jauregui-Misas, V. R. Supradeepa, SPIE, 2022.

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