Tunable Dispersion Compensation at 40Gb/s using a Multicavity Etalon All-Pass Filter, with NRZ, RZ and CSRZ Modulation

We present a multichannel tunable dispersion compensator based on multicavity all-pass etalons that is capable of operation at 40Gb/s. The device has a tuning range of +200/-220 ps/nm with a group delay ripple