A compact, multichannel dispersion-compensating filter is demonstrated with D=-4200ps/nm, a ±5-ps group delay ripple, <3-dB loss, and a 4.5-GHz passband width out of a 12.5-GHz free spectral range. We show that multistage designs can achieve a substantial increase in passband width and peak dispersion for a given group-delay ripple compared with single-stage designs. The dispersion-compensation effectiveness was demonstrated in a 320-km, seven-channel nonlinear system simulation for OC48 signals.
© 1999 Optical Society of America
C. K. Madsen, G. Lenz, A. J. Bruce, M. A. Capuzzo, L. T. Gomez, T. N. Nielsen, and I. Brener, "Multistage dispersion compensator using ring resonators," Opt. Lett. 24, 1555-1557 (1999)