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连续可调技术大大提高了延迟精度，代表了光延迟线的发展方向。
Continuously tunable optical delay lines greatly increase the delay accuracy and are the technological trend.
分别用固定长度保偏光纤和可变光延迟线实现偏振模色散(PMD)补偿的实验。
Experiments of compensation for PMD were done using fixed length of PMF and variable optical delay line, respectively.
实验测得的延时与相邻子阵对应的光载波的波长差以及光延迟线的长度线性相关，这与理论分析一致。
The measured time delay responses are nearly linear with the wavelength spacing between optical carriers as well as the lengths of FDLs, which agrees well with the theoretical analysis.
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