Investigation of Self-Frequency variation of Higher order Soliton in Optical fiber [ READ ]
Rajeev Sharma, Harish Nagar, G P Singh
In this paper, we present Intrapulse Stimulated Raman Scattering in optical fibers. To attain this purpose we used, the Split Step Fourier Method in our simulations. This technique is widely used to simulate soliton like numerical solutions of the Nonlinear Schrödinger Equation (NLSE) and this is a principal method with a very high speed in calculations. During their transmission in optical fiber, soliton pulses are affected by the Raman scattering. Raman scattering is a process that has a substantial role in the higher order nonlinear effects. The Intrapulse Stimulated Raman Scattering (ISRS) is a phenomenon that appears for pulses with a wide spectrum. For these pulses the energy is transported from the high frequency components of the same pulse to the low frequency components. The consequence of this process is that the pulse spectrum shifts in the direction of the red side of the frequencies. The shift toward the red side of the spectra is called self-frequency shift and its physical foundation is related to the delayed nature of the Raman response.
Rajeev Sharma, Harish Nagar, G P Singh
In this paper, we present Intrapulse Stimulated Raman Scattering in optical fibers. To attain this purpose we used, the Split Step Fourier Method in our simulations. This technique is widely used to simulate soliton like numerical solutions of the Nonlinear Schrödinger Equation (NLSE) and this is a principal method with a very high speed in calculations. During their transmission in optical fiber, soliton pulses are affected by the Raman scattering. Raman scattering is a process that has a substantial role in the higher order nonlinear effects. The Intrapulse Stimulated Raman Scattering (ISRS) is a phenomenon that appears for pulses with a wide spectrum. For these pulses the energy is transported from the high frequency components of the same pulse to the low frequency components. The consequence of this process is that the pulse spectrum shifts in the direction of the red side of the frequencies. The shift toward the red side of the spectra is called self-frequency shift and its physical foundation is related to the delayed nature of the Raman response.
