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基于EDFA的理论模型和受激拉曼散射效应的分析理论,利用EDFA和RFA的增益谱互补特性,对拉曼光纤放大器(RFA)采用两根光纤级联方式,研究并设计了EDFA与级联光纤的RFA相结合的混合放大器结构。仿真结果表明:在不使用增益均衡器的条件下,所设计的混合光纤放大器在输出端得到了近似相等的输出光功率,得到了增益平坦度为0.62dB、波长带宽为70nm(1 550~1 620nm)的结果,在密集波分复用光通信系统中有重要的应用价值。
Based on the theoretical model of EDFA and the analysis theory of stimulated Raman scattering effect, two optical fiber cascades are used for Raman fiber amplifier (RFA) based on the complementary characteristics of the gain spectrum of EDFA and RFA. EDFA and cascaded Fiber Optic RFA Combined Hybrid Amplifier Architecture. The simulation results show that the proposed hybrid fiber amplifier achieves approximately equal output optical power at the output without using a gain equalizer, resulting in a gain flatness of 0.62 dB and a wavelength bandwidth of 70 nm (1 550 to 1 620nm) results in Dense Wavelength Division Multiplexing optical communication system has important application value.