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9 March 2021 Simplified manufacturing of advanced microstructured fibers for laser applications
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In this work, we present a simplified method for manufacturing microstructured optical fibers, which was applied for an Yb-doped pentagonal large pitch fiber (LPF). Instead of using the classical stack & draw technique, which can become time-consuming and delicate, we used a one-step structuring of the cladding via deep-hole drilling in glass. The Ybdoped core was also realized in one-step by gas phase doping via MCVD. Additional nanostructuring steps of the core material were redundant due to the high radial homogeneity of the refractive index achieved, matched with high precision to the refractive index of the glass cladding. Numerical simulations were used to verify the method and analyze the scaling of the fiber towards larger mode field diameters, which is crucial for further scaling the power in fiber lasers.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. Palma-Vega, C. Hupel, J. Nold, S. Kuhn, J. Limpert, N. Haarlammert, and T. Schreiber "Simplified manufacturing of advanced microstructured fibers for laser applications", Proc. SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 116651S (9 March 2021);

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