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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Semiconductor optical amplifier space switch BER improvement and guard-time reduction through feed-forward filtering

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Author(s):
Taglietti, Bruno [1] ; Sutili, Tiago [1] ; Figueiredo, Rafael C. [1, 2] ; Ferrari, Rafael [1] ; Conforti, Evandro [1]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, Sch Elect & Comp Engn, Campinas, SP - Brazil
[2] CPqD Fdn, Opt Technol Div, Campinas, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Optics Communications; v. 426, p. 295-301, NOV 1 2018.
Web of Science Citations: 1
Abstract

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)

FAPESP's process: 17/20121-8 - Microwave photonics with Analog/Digital ultrafast processing
Grantee:Tiago Sutili
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 07/56024-4 - Coherent optical technologies
Grantee:Evandro Conforti
Support type: Research Grants - Research Partnership for Technological Innovation - PITE
FAPESP's process: 14/18791-7 - High speed space switches for coherent optical networks
Grantee:Tiago Sutili
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/50063-4 - Optical Interconection and Transmition Coherent Systems Technologies
Grantee:Evandro Conforti
Support type: Research Grants - Research Partnership for Technological Innovation - PITE
FAPESP's process: 15/24517-8 - Photonics for next generation internet
Grantee:Hugo Enrique Hernández Figueroa
Support type: Research Projects - Thematic Grants