Research on the Correlation of the Signal and Output in the Stimulated Raman Scattering

摘要

Based on quantum theory and combined with the nonlinear effects of both Stimulated Raman Scattering (SRS) and Simulated Fourth-photon Mixing (SFPM), the correlation among the pump, the input signal and the output in the Raman amplified fiber-optic transmission systems, is calculated and analyzed. Synthesize the correlation function group and program the corresponding software package. And when the ratio of the pump to the Stocks waves is in a certain field, the correlation is comparatively high, the corresponding input signal amplification multiple β gets to the extreme field. And when the ratio of the pump to the Stocks waves is oversize or undersize, the correlation is decreasing correspondingly. The conclusion of this letter is benefit to optimize the design and experimental research of Fiber Raman Amplifier (FRA).