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Flexible synchronous broad-band subscriber loop system: optical shuttle bus

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6 Author(s)
Yamashita, H. ; Fujitsu Labs. Ltd., Kawasaki, Japan ; Ishihara, T. ; Taniguchi, A. ; Fujimoto, N.
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A flexible, synchronous, broadband subscriber loop system called the optical shuttle bus is discussed. The emphasis is on the proposed design architecture and performance of a 1.8-Gb/s prototype system. The optical shuttle bus is constructed of multigigabit/second intelligent optical shuttle nodes (OSNs). The software-defined OSNs allow the bus to be configured as a synchronous transmission network with any topology and provides flexible channel allocation by means of a drop/insert/cross-connect function. The OSN can be configured as a highly reliable network by virtue of its self-healing functions such as line switch, bypass, and loop back. The proposed bus architecture has been successfully applied in a 1.8-Gb/s prototype in which three OSNs are connected by one 10-km and two 5-dm single-mode fibers in a ring configuration. Very compact and inexpensive equipment is realized by using high-speed ICs. Experimental results show the proposed architecture to be a powerful one for the realization of synchronous broadband subscriber loop systems

Published in:

Lightwave Technology, Journal of  (Volume:7 ,  Issue: 11 )

Date of Publication:

Nov 1989

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