Recent progress on FBG-based tunable dispersion compensators for 40 Gb/s applications

The optical performance of state-of-the-art FBG-based tunable dispersion compensators is given in view of the recent advances. Results are given for a 33-channel device with 80 GHz bandwidth, 200 GHz channel spacing and tunable from -400 to +400 ps/nm, and for a 51-channel device with 40 GHz bandwidth, 100 GHz channel spacing and tunable from -600 to +600 ps/nm.