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Raman and Brillouin scattering are usually observed at ___________

Raman and Brillouin scattering are usually observed at ___________ Correct Answer High optical power densities

Raman and Brillouin scattering mechanism are non-linear. They provide optical gain but with a shift in frequency, thus contributing to attenuation for light transmission at a particular wavelength. They can be seen at high optical power densities.

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