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采用不同波长和类型的光源作为入射光信号，对色散位移光纤中的四波混频进行了实验研究。实验比较了不同色散位移光纤链组合时产生的四波混频信号的大小，研究表明，为了减小四波混频，应该在每一放大器间距内将零色散点波长距信号光波长较远的光纤铺在最接近掺铒光纤放大器处，而零色散点波长距信号光波长较近的光纤应该远离掺铒光纤放大器。对实验中的各种现象进行了理论分析，提出了一些减小四波混频的有益建议，实验结果和理论分析基本一致。
The different wavelengths and types of light sources are used as incident light signals, and the four-wave mixing in dispersion-shifted fibers is experimentally studied. The experiment compares the size of the four-wave mixing signal generated by the combination of different dispersion-shifted optical fiber chains. The research shows that in order to reduce the four-wave mixing, the zero dispersion point wavelength should be far from the signal light in each amplifier pitch The fiber is placed closest to the erbium-doped fiber amplifier and the fiber with the zero-dispersion point wavelength closer to the signal light should be kept away from the erbium-doped fiber amplifier. Theoretical analysis of the various phenomena in the experiment, put forward some useful suggestions to reduce the four-wave mixing, the experimental results and theoretical analysis are basically the same.