Theory of stimulated Raman scattering cancellation in wavelength-division-multiplexed systems via spectral inversion

By exploiting the reflection symmetry of the underlying evolution equations , we theoretically demonstrate that stimulated Raman scattering crosstalk i n continuous-wave wavelength-division-multiplexed systems can be totally el iminated using spectral inversion techniques. We show that this result is a lways true, irrespective of the shape of the Raman gain curve or the loss/g ain profile along the optical fiber system. These results are illustrated b y means of relevant examples.