Equation for modeling two-photon absorption in nonlinear waveguides
JOSA B, 2020•opg.optica.org
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.
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.
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.
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