Distributed spectral measurement of nonlinear Raman cascade process along an optical nanofiber
Résumé
We present in this work the longitudinal characterization of the spectral evolution of a Raman cascading process along an optical nanofiber with a millimetric length and sub-micrometric size. The measurements are performed by analyzing with a confocal micro-spectrometer the light radiated by Rayleigh scattering out the nanofiber. This observation is performed with a high spatial resolution given by a confocal microscope, and a high spectral resolution given by the spectrometer
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