Modulation instability in waveguides with an arbitrary frequency-dependent nonlinear coefficient
"In this Letter, we present, for the first time, to the best of our knowledge, the modulation instability (MI) gain spectrum of waveguides with an arbitrary frequency-dependent nonlinear coefficient ensuring strict energy and photon-number conservation of the parametric process. This is achieve...
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| Autores principales: | , , , , , |
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| Formato: | Artículos de Publicaciones Periódicas acceptedVersion |
| Lenguaje: | Inglés |
| Publicado: |
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| Materias: | |
| Acceso en línea: | http://ri.itba.edu.ar/handle/123456789/2235 |
| Aporte de: |
| Sumario: | "In this Letter, we present, for the first time, to the best of our knowledge, the modulation instability (MI) gain spectrum of waveguides with an arbitrary frequency-dependent nonlinear coefficient ensuring strict energy and photon-number conservation of the parametric process. This is achieved
by starting from a linear stability analysis of the recently introduced photon-conserving nonlinear Schrödinger equation. The derived MI gain is shown to predict some unique features, such as a nonzero gain extending beyond a zero-nonlinearity wavelength and a complex structure of
the MI gain spectrum. Analytical results are shown to be in excellent agreement with numerical simulations." |
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