Abstract

A modular, cascadable, and self-controlled optical queue buffer is proposed, which can solve the packet contention at a 2 × 1 optical node. Controlled by incoming optical packets, the buffer can realize first-in-first-out queue buffering without the necessity of external control signals. By using optical threshold functions and wavelength converters based on semiconductor optical amplifier, the push and pop operations of packets on queue can both be achieved. In addition, preliminary experiment is carried out.

© 2012 Chinese Optics Letters

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