We investigate an extreme regime of nonlinear propagation in standard multimode optical fibers, where intense laser pulses trigger multiphoton ionization effects. These influence the dynamics of spatiotemporal solitons which are formed from the fission of input laser pulses. In particular, we observed a non-monotonic Raman wavelength shift over a time scale of several hours. Moreover, the material ionization generates irreversible damages, which are visualized by means of optical microscopy and X-ray computed microtomography.
Fiber optics in the multiphoton ionization regime / Ferraro, M; Mangini, F; Sun, Y; Zitelli, M; Crocco, Mc; Formoso, V; Agostino, Rg; Barberi, Rc; De Luca, A; Tonello, A; Couderc, V; Wabnitz, S. - (2022), pp. 1-4. (Intervento presentato al convegno 022 Italian Conference on Optics and Photonics, ICOP 2022 tenutosi a Trento; Italy) [10.1109/ICOP56156.2022.10044375].
Fiber optics in the multiphoton ionization regime
Ferraro, M;Mangini, F;Sun, Y;Zitelli, M;Couderc, V;Wabnitz, S
2022
Abstract
We investigate an extreme regime of nonlinear propagation in standard multimode optical fibers, where intense laser pulses trigger multiphoton ionization effects. These influence the dynamics of spatiotemporal solitons which are formed from the fission of input laser pulses. In particular, we observed a non-monotonic Raman wavelength shift over a time scale of several hours. Moreover, the material ionization generates irreversible damages, which are visualized by means of optical microscopy and X-ray computed microtomography.| File | Dimensione | Formato | |
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