Abstract
Optical data transmission at 40 Gbit/s is limited by intra-channel nonlinear distortions caused by cross-phase modulation (IXPM) and four-wave mixing (IFWM). A combination of dispersion management (DM) and saturable absorption is an attractive technology to increase error-free transmission distance at high bit rates [1-4]. In this paper we present analysis of 2R regeneration schemes based on quantum well saturable absorber (SA) [1-2] and highly nonlinear fiber (HNF) in a 40 Gbit/s DM long-haul transmission. We study different dispersion maps and demonstrate that symmetric dispersion management is a reliable and practical solution.
© 2003 Optical Society of America
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