Study on Capacity Upgrade of JIH (Japan Information Highway) Submarine Cable System Using 40 Gbit/s-Based WDM Transmission Technologies

Keiji TANAKA  Itsuro MORITA  Noboru YOSHIKANE  Noboru EDAGAWA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E87-B   No.6   pp.1463-1469
Publication Date: 2004/06/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Fiber-Optic Transmission
Keyword: 
JIH system,  capacity upgrade,  40 Gbit/s-based WDM transmission,  

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Summary: 
We numerically and experimentally investigated the upgradability of the longest and the typical segments of the JIH system. Through these studies, we confirmed that a 100 GHz-spaced 25 42.7 Gbit/s transmission with the total capacity of 1 Tbit/s can be attainable even by using NRZ signal and standard FEC for the typical segments. We also found that RZ signal format was desirable for the longest segment and a further wide system margin could be expected by using adjacent channel polarization control and advanced FEC technologies.