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IEICE TRANSACTIONS on Communications

Efficiently Accommodation of IP Traffic by Employing WDM-Channel-Count Asymmetric Bi-directional Optical Amplifiers

Masatoyo SUMIDA, Tsutomu KUBO, Takamasa IMAI

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Summary :

A bi-directional WDM transmission link that changes the channel-count assigned in each direction is proposed for efficiently accommodating IP traffic which is characterized by directional volume asymmetry. A novel bi-directional optical amplifier is also proposed for overcoming the problems that arise in realizing the proposed link. The asymmetric, bi-directional, repeatered WDM transmission of 8 (total) 10 Gbit/s, 50 GHz-spaced channels over eleven 50 km spans is successfully demonstrated. The experimental results clarify that, owing to the use of the proposed bi-directional amplifier, directional asymmetry in channel-count and Rayleigh backscattering do not result in any significant performance degradation. Based upon an analysis of backscattering induced impairment, we show that the total transmission loss of 1000 dB can be supported if the span loss is 20 dB.

Publication
IEICE TRANSACTIONS on Communications Vol.E86-B No.11 pp.3174-3181
Publication Date
2003/11/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Fiber-Optic Transmission

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