A Modular Tbit/s TDM-WDM Photonic ATM Switch Using Optical Output Buffers

Wen De ZHONG  Yoshihiro SHIMAZU  Masato TSUKADA  Kenichi YUKIMATSU  

Publication
IEICE TRANSACTIONS on Communications   Vol.E77-B    No.2    pp.190-196
Publication Date: 1994/02/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Photonic Switching Technologies)
Category: 
Keyword: 
photonic ATM switching,  time-division and wavelength-division multiplexing,  ultrashort optical pulse,  reverse banyan network,  running adder network,  optical output buffering,  

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Summary: 
The modular and growable photonic ATM switch architecture described in this paper uses both time-division and wavelength-division multiplexing technologies, so the switch capacity can be expanded in both the time and frequency domains. It uses a new implementation of output buffering scheme that overcomes the bottleneck in receiving and storing concurrent ultra fast optical cells. The capacity in one stage of a switch with this architecture can be increased from 32 gigabits per second to several terabits per second in a modular fashion. The proposed switch structure with output channel grouping can greatly reduce the amount of hardware and still guarantee the cell sequence.