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利用二次曝光法制作的啁啾光纤光栅在国内首次实现了 1 0 Gb/ s WDM系统单路色散补偿 ,经 1 80 km传输后色散补偿的功率代价为 1 d B。
The chirped fiber grating fabricated by the double-exposure method firstly achieves the single-channel dispersion compensation of 10 Gb / s WDM system in China, and the dispersion-compensated power cost after 1 80 km transmission is 1 d B.