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建立了基于自相位调制效应的掺Yb光纤激光器输出光谱特性的解析模型,实验测量分析了输出光谱的形态,输出光谱随功率升高的变化趋势以及低功率下的输出光谱特性。实验结果表明,理论模型与实验结果吻合地较好,并且能够较为准确地得到输出光谱宽度随功率的变化规律以及低功率下输出光谱的特性。
An analytical model of output spectral characteristics of Yb-doped fiber laser based on self-phase modulation is established. The experimental results show the shape of the output spectrum, the trend of the output spectrum with increasing power and the output spectral characteristics under low power. The experimental results show that the theoretical model is in good agreement with the experimental results, and the output spectrum width with power can be obtained accurately and the output spectrum under low power can be obtained accurately.