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8 March 2023 Analysis and fabrication of tapered multicore gain fibers for high power lasers
Christopher Aleshire, Albrecht Steinkopff, Arno Klenke, Cesar Jauregui, Steffen Böhme, Tobias Koch, Stefan Kuhn, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, Jens Limpert
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Proceedings Volume 12400, Fiber Lasers XX: Technology and Systems; 1240013 (2023) https://doi.org/10.1117/12.2650508
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
Numerical analysis of multicore fiber tapers as a mode area scaling technique for use in coherently combined laser systems is demonstrated. Taper designs are modelled with beam propagation method (BPM) numerical simulations to analyze inter-core crosstalk and mode distortion in centimeter-scale taper transitions. By evaluating taper performance for a range of taper lengths on the scale of centimeters, optimized taper designs can be found for a given MCF design. Tapers based on these simulations are fabricated using a CO2 laser tapering system.
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Christopher Aleshire, Albrecht Steinkopff, Arno Klenke, Cesar Jauregui, Steffen Böhme, Tobias Koch, Stefan Kuhn, Johannes Nold, Nicoletta Haarlammert, Thomas Schreiber, and Jens Limpert "Analysis and fabrication of tapered multicore gain fibers for high power lasers", Proc. SPIE 12400, Fiber Lasers XX: Technology and Systems, 1240013 (8 March 2023); https://doi.org/10.1117/12.2650508
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KEYWORDS
Multicore fiber
Beam propagation method
High power lasers
Fiber lasers
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