A method and system for compensating residual dispersion curvature in an
optical communication network is disclosed. One embodiment employs two
types of dispersion compensating fiber to reduce higher order terms in a
residual dispersion profile. The two types of dispersion compensating
fiber may be co-located in a dispersion compensation module positioned in
each transmission fiber link. Alternatively, the two types of dispersion
compensating fiber may be distributed across a span of the optical
communication network.