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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.)

Impact of semiconductor optical amplifier nonlinear gain over 16-QAM optical signals at 40 and 100 Gbit/s

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Author(s):
Rocha, Peterson [1] ; Gallep, Cristiano M. [2] ; Conforti, Evandro [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Fac Elect & Comp Engn, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Technol, Limeira - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Optical Engineering; v. 57, n. 10 OCT 2018.
Web of Science Citations: 1
Abstract

Nonlinear phase-drift on 16-QAM optical signals due to semiconductor optical amplifier gain saturation were measured for two devices-a linear and a nonlinear one-considering the input optical power and the net optical gain. The signal when amplified by the nonlinear device is marred even for low P-in (-20 dBm), and for moderate input powers (-15 dBm) signal quality stays always above the forward error correction (FEC) limit (error vector magnitude = 16%). The nonlinear device as expected induced more degradation, being able to operate fairly just for small gain and input power; for moderate gain (12 dB), the amplified signals stay always above the FEC limit. The linear device showed fair operation even for moderate P-in = -15 dBm, working under FEC limit for OSNR (at Rx) higher than 16.5 dB for 10 Gbaud, and higher than 20 dB for 25 Gbaud, with small penalties (<2 dB) in relation to the back-to-back configuration. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) (AU)

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: 17/20121-8 - Microwave Photonics with Analog/Digital Ultrafast Processing
Grantee:Tiago Sutili
Support type: Scholarships in Brazil - Post-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