Open AccessPhotonic integrated circuit optical buffer for packet-switched networks
Author(s) -
Emily F. Burmeister,
John Mack,
H.N. Poulsen,
Milan L. Mašanović,
Biljana Stamenić,
Daniel J. Blumenthal,
John E. Bowers
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.006629
Subject(s) - buffer (optical fiber) , byte , packet switching , burst switching , network packet , computer science , transmission delay , photonics , processing delay , optical buffer , optics , optical switch , materials science , computer network , computer hardware , physics , wavelength division multiplexing , optical performance monitoring , telecommunications , wavelength
A chip-scale optical buffer performs autonomous contention resolution for 40-byte packets with 99% packet recovery. The buffer consists of a fast, InP-based 2 x 2 optical switch and a silica-on-silicon low loss delay loop. The buffer is demonstrated in recirculating operation, but may be reconfigured in feed-forward operation for longer packet lengths. The recirculating buffer provides packet storage in integer multiples of the delay length of 12.86 ns up to 64.3 ns with 98% packet recovery. The buffer is used to resolve contention between two 40 Gb/s packet streams using multiple photonic chip optical buffers.
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