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First demonstration of multihop all-optical packet switching

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3 Author(s)
Blumenthal, D.J. ; Microelectron. Res. Center, Georgia Inst. of Technol., Atlanta, GA, USA ; Feuerstein, R.J. ; Sauer, J.R.

Experimenta1 demonstration of all-optical multihop routing through 2/spl times/2 photonic packet switches is described for the first time. As each packet traverses a switch, the functions of routing, contention resolution, header regeneration, and header reinsertion are performed. Three all-optical hops are demonstrated for the payload without optical amplification. The number of hops is currently limited by /spl minus/13 dB optical loss per switch pass. Each packet is coded using six discrete optical wavelengths, making this the widest bit-parallel photonic switch reported to date.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 3 )