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本文讨论了光纤零色散波长的离散对光纤中四波混频效率的影响 ,导出了多段均匀零色散波长光纤输出的四波混频光波强度的表达式 ,进而对该式进行了推广 ,导出了一般情况下的表达式 .最后我们对几种具体情形进行了计算 .计算结果表明当光纤的零色散波长存在漂移时 ,光纤中四波混频效率显著降低 .而且光纤零色散波长漂移的幅度和分布规律以及泵浦光波长的选取对光纤四波混频效率也有重要影响 .
In this paper, we discuss the effect of dispersion of zero-dispersion wavelength of fiber on the efficiency of four-wave mixing in optical fiber and derive the expression of four-wave mixing intensity of multi-band uniform zero-dispersion wavelength fiber output, and then extend the formula In the end, we calculate several specific cases.The results show that the efficiency of the four-wave mixing in the fiber is significantly reduced when the zero-dispersion wavelength of the fiber is drifted, and the amplitude of the zero- The distribution law and the selection of the pump light wavelength also have an important influence on the efficiency of the four-wave fiber mixing.