The study compares the relative intensity noise of all-fiber supercontinuum generated in multimode step-index a nd graded-index fibers. In this article Ines Cáceres Pablo et al, show that SC in GRIN fibers exhibits lower noise and a near-single-mode spatial profile across the spectrum, making it a promising alternative to single-mode fibers for low-noise applications.
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Inés Cáceres Pablo, Arun Surendran, Francesca Gallazzi, Zahra Eslami, and Goëry Genty, “Relative intensity noise characterization of supercontinuum generation in graded-index and step-index multimode fibers,” Opt. Lett. 50, 1236-1239 (2025)