[IJCST-V4I4P4]:S. Rajalakshmi, Azaruddin Shaik, Bangaru B.N.V. Chalam

Nonlinear effects in optical fibers have become an area of academic research and of great importance in the optical fiber based systems. The employment of high bit rate multi wavelength systems together with optical amplifiers creates major nonlinear effects such as SRS, SBS, SPM, XPM and FWM in Dense Wavelength Multiplexing Division (DWDM) systems. Presence of these nonlinear effects in the optical fiber communication adversely effect the communication. Here we have investigated the Stimulated Raman effects (SR) and Stimulated Brillouin effects (SB) and Four Wave Mixing (FWM). We have designed and stimulated and analyzed the results using BER and Q factor for different data rates, distance, modulation formats and for different receivers.