Use of an additive noise to transfer spatial information from a laser to a stimulated Raman beam

Abstract

A spatial signal cannot be converted from a laser wavelength to a stimulated Raman scattering wavelength if the laser intensity is too weak to obtain the stimulated Raman. The addition of high intensity spatial noise can help the Raman excitation if averaging occurs in the nonlinear system to restore the spatial signal. In order to have a sufficient quality of spatial information transfer, optimization of the noise intensity dependent on the signal intensity must be carried out. A model based on this idea is studied.

Acknowledgements

The author is grateful to G. Rivoire, J. Gazengel, F. Chapeau-Blondeau and X. Godivier for their help.

Notes

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Additional information

Notes on contributors

Fabrice Vaudelle *

Email: [email protected]