in nonlinear effect fiber optic :
we have a part:
Stimulated Scattering:
in this part we have two phenomenon
Stimulated Brillouin Scattering (SBS)
Stimulated Raman Scattering (SRS)
whats difference this two?
i think they are same!!
- Stimulated Brillouin Scattering is a scattering of light backwards towards the transmitter caused by mechanical (acoustic) vibrations in the transmission medium (fiber). The reflected wave produced is called the “Stokes Wave”.
- Stimulated Brillouin Scattering is caused by the presence of the optical signal itself.
The different possibilities of light scattering: Rayleigh scattering (no exchange of energy: incident and scattered photons have the same energy), Stokes Raman scattering (atom or molecule absorbs energy: scattered photon has less energy than the incident photon) and anti-Stokes Raman scattering (atom or molecule loses energy: scattered photon has more energy than the incident photon)
thanks for attention