Non-Linear effects in Optical fibers are caused due to the refractive index of the optical medium's dependence on the intensity of light. One of the prominent non-linear effects in Optical fibers is the Four-wave mixing (FWM) phenomenon. FWM effect is resonant when the phase matching condition is satisfied. It only occurs for particular combinations of fiber dispersion and signal frequencies. The FWM is a very unpleasant transmission phenomenon occurring in a transparent optical network based on Dense Wave Division Multiplexing, but it could be used advantageously for implementing optical devices such as wavelength converters, parametric amplifiers, optical de-multiplexers, chromatic dispersion compensators, as well as signal to noise regenerators. This paper discusses the effect of channel spacing, laser power, and dispersion, length of the optical fiber and the variation of input power to compensate the effect of FWM when implemented in a short haul environment.

Solitons are solitary waves which have a particle like behavior as they maintain their shape when travelling at a constant speed and also that when a soliton interacts with another soliton then it retains its shape after emerging from the collision with a possible change in the phase shift [1]. A precise simulation is employed to simulate the generation of soliton pulses by using two techniques employing the Laser Pulse as a source as well as by using a Soliton Pulse generator. The respective techniques performance in terms of bit rate, optical fiber length, Q factor, BER, jitter and eye opening were studied. The outcomes from the simulations further clarify that the Soliton Pulse generation technique provides much effective pulse shape retention for longer communication distances as well as provide a better peak power, both of which are crucial factors for the data transmission to be done efficiently in any communication system so as to compensate for the noise and the distortion introduced in the system. Also the non-linear effect of Self Phase Modulation has General Terms