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Optical Cross-Connect Switch Architectures for Hierarchical Optical Path Networks
Shoji KAKEHASHI Hiroshi HASEGAWA Ken-ichi SATO
IEICE TRANSACTIONS on Communications
Publication Date: 2008/10/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Switching for Communications
waveband, waveband cross-connect, optical cross-connect,
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This paper proposes new switch architectures for hierarchical optical path cross-connect (HOXC) systems. The architectures allow incremental expansion of system scale in terms of the number of input/output fiber ports, wavebands, and optical paths per waveband. These features assure the cost-effective introduction of HOXCs even at the outset when traffic volume is not so large. Furthermore the effectiveness of the proposed switch architectures is demonstrated in a comparison with single-layer OXCs (conventional OXCs). The results provide useful criteria for the introduction of HOXCs in terms of hardware scale.