Abstract
All-optical XOR gate is an important function widely used in optical signal switching, data recognition and optical signal processing. Semiconductor ring laser (SRL) as a digital photonic device is attracting more and more attention for all-optical switching [1], signal regeneration, optical memory [2], and as a potential candidate for all-optical logic devices. In this paper, we propose and experimentally demonstrate a novel all-optical XOR gate using bistable SRLs. This is the first report to our knowledge that all-optical logic XOR gate is realized using the monolithically integrated bistable semiconductor ring lasers. In this initial experiment, we focus on demonstrating the novel principle of operation and logic XOR function that can be realized with a single device configuration as a basic logic unit. In future, these will be transferred to high data speed using the same operation and concept introduced here in high speed SRL devices.
© 2009 IEEE
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