We derive a novel propagation equation for optical waveguides that properly accounts for two-photon absorption (TPA). We start from a simple quantum theory of nonlinear fibers allowing for TPA to be included in a straightforward fashion. The derived equation is shown to be in excellent agreement with numerical results of conventional pump-and-probe schemes and, to the best of our knowledge, is the first single equation capable of correctly modeling TPA in the context of broadband signals.
Equation for modeling two-photon absorption in nonlinear waveguides / Linale, N.; Bonetti, J.; Sparapani, A.; Sánchez, A. D.; Grosz, D. F.. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 37:6(2020), pp. 1906-1910. [10.1364/josab.392348]
Equation for modeling two-photon absorption in nonlinear waveguides
Sparapani, A.;
2020
Abstract
We derive a novel propagation equation for optical waveguides that properly accounts for two-photon absorption (TPA). We start from a simple quantum theory of nonlinear fibers allowing for TPA to be included in a straightforward fashion. The derived equation is shown to be in excellent agreement with numerical results of conventional pump-and-probe schemes and, to the best of our knowledge, is the first single equation capable of correctly modeling TPA in the context of broadband signals.File | Dimensione | Formato | |
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