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Modulation instability in waveguides with an arbitrary frequency-dependent nonlinear coefficient
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DOI：10.1364/OL.388677.png)
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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 non-linear 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 Schrodinger 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. (C) 2020 Optical Society of America.
Keyword:
OPTICAL CHARACTERISTICS
RAMAN GAIN
NANOPARTICLES
DISPERSION
IR
METAMATERIALS
DYNAMICS
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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引用论文
Role of the anomalous self-steepening effect in modulation instability in negative-index material.png)
OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
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