Long-haul WDM system through conventional single mode optical fiber with dispersion compensation by chirped fiber Bragg grating

摘要

By optimizing the fabrication process of the chirped optical fiber Bragg grating (FBG), we have obtained the ripple coefficient of reflectivity and time delay smaller than 0.2 dB and 12 ps, respectively. We have implemented dispersion compensation with FBG in two conventional single mode optical fiber (G.652) systems (4×10 Gb/s, 400 km, and 4×10 Gb/s, 800 km), with a power penalty less than 2 dB per-channel. Our results show that the properties of the 4×10 Gb/s, 800 km transmission system are better than the criterion of the international telecommunication union-telecommunication standardization sector (ITU-T). We monitored the polarization mode dispersion (PMD) of the 4×10 Gb/s, 800 km transmission systems for several months, our results show that the PMD compensation is not necessary for a 10 Gb/s system.