Fiber Lasers XXI: Technology and Systems 2024
DOI: 10.1117/12.3003118
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Splice optimisation between dissimilar fibres in the presence of dopant diffusion

Vincenzo Scarnera,
Christophe A. Codemard,
Mike Durkin
et al.

Abstract: In this work, we optimize singlemode-to-multimode doped fiber splices by varying the arc duration and monitoring HOM excitation, using the standard S 2 technique. By measuring the diffused refractive index profile (RIP) distributions around the splice point, contrary to current belief, we show that the optimum arc duration does not corresponds to RIP that match the MFDs on either side of the splice point. Furthermore, we show that the MM doped fiber diffused RIP is longitudinally non-adiabatic and results in a… Show more

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