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分析了影响拉曼光纤放大器增益谱的几个因素。在四抽运激光器抽运时 ,模拟了多抽运激光器抽运时的拉曼增益谱特性。实验中 ,采用增益平坦滤波器和功率分配两种方法实现增益谱平坦 ,指出了功率分配方法的优势。
Several factors that affect the gain spectrum of Raman fiber amplifier are analyzed. The Raman gain spectra of a pump laser are simulated at the time of pumping of four pump laser. In the experiment, gain flattening is achieved by gain flattening filter and power allocation, and the advantage of power distribution method is pointed out.