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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
IEICE TRANSACTIONS on Communications
Publication Date: 2004/06/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Fiber-Optic Transmission
JIH system, capacity upgrade, 40 Gbit/s-based WDM transmission,
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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.