Abstract

To date, in-line regeneration remains the only possible technique for Nx40Gbit/s WDM transmission over transoceanic (6,500-12,000km) distances. All-optical regeneration (AOR) based on synchronous modulation and narrowband filtering [1-2] remains a very attractive solution compared to electronic regeneration, owing to substantial components simplification [3]. Another significant advantage of AOR is the possibility of simultaneously regenerating several WDM channels after initial re-synchronization [4]. Finally, AOR is fully compatible with dispersion management (DM), enabling implementation to any RZ formats, including soliton-like, as recently shown in 40Gbit/s experiments [5].

© 2000 Optical Society of America