Reis, CláudiaDionísio, Rogério PaisNeto, BertaTeixeira, AntónioAndré, P.S.2010-12-152010-12-152009REIS, C. [et al.] - All-optical XOR based on integrated MZI-SOA with Co and counter-propagation scheme. In International Conference on Transparent Optical Networks, Mediterranean Winter Conference, 3, Angers, Dezembro 2009. Angèrs: IEEE, 2009. p. 1-4http://hdl.handle.net/10400.11/470“Copyright © [2009] IEEE. Reprinted from ICTON-MW 3rd. ISBN:978-1-4244-5745-8. This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.”In this work we present a review of all-optical XOR gates based on Mach-Zehnder Interferometer with Semiconductor Optical Amplifiers (MZI-SOA), using NRZ modulated signals driven at 10 Gbit/s. The performance of two alternative schemes for logical XOR gates implementation is demonstrated through numerical simulations and experimentally. The extinction ratio shows high operation performance with low degradation.engSOA based devicesAll-optical signal processingAll-optical logical gatesconference object