Robust ultrashort light bullets in strongly twisted waveguide arrays
PublisherAmerican Institute of Physics (AIP)
Rights accessOpen Access
We introduce a new class of stable light bullets that form in twisted waveguide arrays pumped with ultrashort pulses, where twisting offers a powerful knob to tune the properties of localized states. We find that, above a critical twist, three-dimensional wave packets are unambiguously stabilized, with no minimum energy threshold. As a consequence, when the higher-order perturbations that accompany ultrashort pulse propagation are at play, the bullets dynamically adjust and sweep along stable branches. Therefore, they are predicted to feature an unprecedented experimental robustness.
CitationMilián, C.; Kartashov, Y.V.; Torner, L. Robust ultrashort light bullets in strongly twisted waveguide arrays. "Physical review letters", 27 Setembre 2019, vol. 123, núm. 13, p. 133902:1-133902:6.