【摘要】 研究了反向泵浦光纤喇曼放大器中泵浦和信号的求解方法 ,并且分析了双重瑞利散射噪声的特性 ,提出了在考虑反向喇曼光放大作用时 ,双重瑞利散射噪声的表达式。给出了在加入光隔离器进行抑制后 ,双重瑞利散射噪声的计算方法 ,并进行了模拟分析 ,得出了放置光隔离器的最佳位置。更多还原

【Abstract】 The method to calculate the signal and amplified double Rayleigh backscattering (DRB) noise in back-pumped fiber Raman amplifier is present. The character of amplified DRB noise is analyzed and the related expressions are also present. Calculation is performed for the case that an optical isolator is inserted to suppress the DRB noise. Simulation results are given and optimal position for the isolator is determined.更多还原