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Open AccessArticle

A Deeply Saturated Differentially-Biased SOA-MZI for 20 Gb/s Burst-Mode NRZ Traffic

Department of Informatics—Center for Interdisciplinary Research and Innovation, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Appl. Sci. 2019, 9(15), 2971; https://doi.org/10.3390/app9152971
Received: 24 June 2019 / Revised: 16 July 2019 / Accepted: 22 July 2019 / Published: 25 July 2019
(This article belongs to the Special Issue Photonic Switching)
We experimentally demonstrate an optical Burst-Mode Wavelength Converter (BMWC) that simultaneously provides power equalization and wavelength conversion of Non-Return to Zero-On/Off Keying (NRZ-OOK) data and operates up to 20 Gb/s. It employs a balanced, differentially-biased, Semiconductor Optical Amplifier-Mach Zehnder Interferometer (SOA-MZI) operating in deeply saturated regime and its performance is evaluated at 10 Gb/s and 20 Gb/s with loud/soft peak–power ratios up to 9 dB and 5 dB, respectively. Bit Error Rate (BER) measurements reveal error free operation with up to 6.1 dB BER improvement at 10 Gb/s and 3.51 dB at 20 Gb/s, while the use of a single SOA-MZI yields 50% reduction in the number of active components against state-of-the-art BMWCs. Finally, the proposed BMWC is evaluated in non-dispersion compensated 25 km fiber transmission experiment, providing error-free operation with 1.43 dB BER improvement, validating its capabilities for potential employment in Passive Optical Networks (PON) and 5G fronthaul networks. View Full-Text
Keywords: burst-mode switches; optical wavelength conversion; passive optical networks; semiconductor optical amplifier-Mach-Zehnder Interferometer; 5G digital fronthaul; wavelength division multiplexing burst-mode switches; optical wavelength conversion; passive optical networks; semiconductor optical amplifier-Mach-Zehnder Interferometer; 5G digital fronthaul; wavelength division multiplexing
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Tsakyridis, A.; Moralis-Pegios, M.; Vagionas, C.; Ruggeri, E.; Kalfas, G.; Miliou, A.; Pleros, N. A Deeply Saturated Differentially-Biased SOA-MZI for 20 Gb/s Burst-Mode NRZ Traffic. Appl. Sci. 2019, 9, 2971.

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