CHROMATIC DISPERSION COMPENSATION IN A BROADBAND OPTICAL TRANSMISSION SYSTEM

摘要

P The invention relates to compensation for chromatic dispersion and chromatic dispersion slope in fiber optic transmission systems. It proposes to use to compensate for the chromatic dispersion in the transmission fiber (4 i) of the dispersion compensation fiber (12) and a Bragg grating (14). The Bragg grating has a bandwidth of more than 25 nm, so that the system can be used on wide bands. In addition, the Bragg grating compensates for less than 250 ps / nm in absolute value, so that it remains easy to manufacture despite the wide band. The invention applies in particular to very high speed systems (above 40 Gbit / s for each channel), with a band greater than 25 nm. /P