A multirate upgradeable 1.6-Tb/s hierarchical OADM network

作者:Su, YK*; Chandrasekhar, S; Ryf, R; Doerr, CR; Moller, L; Widjaja, I; Raybon, G; Neilson, DT; Zhou, T; Buhl, L; Radic, S
来源:IEEE Photonics Technology Letters, 2004, 16(1): 317-319.
DOI:10.1109/LPT.2003.820495

摘要

We report a hierarchical optical add-drop multiplexer (OADM) network that supports 10-, 40-, and 160-Gb/s data rates, with the same bandwidth efficiency. The data rates can be upgraded without hardware modification in the OADM. This hierarchical OADM network is equipped with high capacity (1.6 Tb/s) for traffic growth, while providing different granularities; for diverse bandwidth requirements as fine as 12.5 GHz in optical domain. We investigate the transmission penalty through the waveband OADMs, and compare the performance between all-through traffic and add-drop traffic of neighboring wavebands at 40-Gb/s rate.