CPqD Fdn, Opt Technol Div, Campinas, SP - Brazil
Total Affiliations: 2
NOV 1 2018.
Web of Science Citations:
Analysis of the guard-time interval impact on bit error rate (BER) of a linear SOA-based space switch aiming the guard-time reduction is presented, including effects of fiber propagation. The characterization employed feed-forward filtering and optical switching techniques, through several types and lengths of fibers (with and without dispersion compensation). The Wiener filter (with 2 taps) consistently showed a switching performance improvement, with a guard-time (GT) reduction enough to achieve the BER pre-FEC limit. In most configurations the average GT was of 429 ps (3 bits GT at 7 Gbps). The overall best GT result achieved was using 100 mA of SOA bias current and applying the Wiener Filter, resulting in a GT of 286 ps (2 bits GT at 7 Gbps). The space-switch operating parameters with focus on the bias current and switching technique configuration were also analyzed, aiming at reducing the SOA-based electro-optical space switch guard-time, allowing the achievement of high commutation rates. (AU)