A Large Capacity Photonic ATM Switch Based on Wavelength Division Multiplexing Technology

Youngbok CHOI
Hideki TODE
Hiromi OKADA
Hiromasa IKEDA

IEICE TRANSACTIONS on Communications   Vol.E79-B    No.4    pp.560-568
Publication Date: 1996/04/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Networks and Services
photonic switch,  electronic control,  ATM switching,  WDM optical networks,  WDM optical buffer,  

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Optical switching networks to transport vast amounts of information are important for B-ISDN services. The wavelength division multiplexing (WDM) is emerging as the dominant technology for future optical networks. This paper proposes a large capacity photonic ATM switch architecture using WDM technology. The switch consists of two stages. The first stage is a space switch and the second stage is a wavelength switch. The proposed switch is suitable for WDM optical ATM networks, that is, an input and an output of the switch are wavelength-division-multiplexed. The switch can provide very large ATM cell switching capacity, for instance, 10Tbit/s, with reasonable complexity. The main switch module of the proposed switch has a simple architecture, and reduces the amount of a buffer hardware by introducing the WDM concept.