0000000000764279
AUTHOR
Fang Feng
Spectral sideband splitting inn strongly dispersion oscillating fibers
Vidéo de la présentation donnée : https://youtu.be/SBA2WLKw5jw; International audience
Gain sideband splitting in dispersion oscillating fibers
International audience; We analyze the modulation instability spectrum in a varying dispersion optical fiber as a function of the dispersion oscillation amplitude. For large dispersion oscillations, we predict a novel sideband splitting into different sub-sidebands. The emergence of the new sidebands is observed whenever the classical perturbation analysis for parametric resonances predicts vanishing sideband amplitudes. The numerical results are in good quantitative agreement with Floquet or Bloch stability analysis of four-wave mixing in the periodic dispersion fiber. We have also shown that linear gain or loss may have a dramatic influence in reshaping the new sidebands.
Wavelength conversion and temporal compression of a pulse train using a dispersion oscillating fiber
International audience; We demonstrate the generation of a picosecond pulse train taking advantage of the cross gain occurring in a dispersion oscillating fibre. The resulting frequency-converted signal is detuned by more than 20 nm from the pump and can be temporally compressed by a factor 2 compared to the input sinusoidal pump wave.