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Optical burst-mode wavelength conversion for 10Gb/s NRZ optical signals
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Paper Abstract

The 5G-induced paradigm shift from traditional macro-cell networks towards ultra-dense deployment of small cells, imposes stringent bandwidth and latency requirements in the underlying network infrastructure. While state of the art TDM-PON e.g. 10G-EPON, have already transformed the fronthaul networks from circuit switched point-to-point links into packet based architectures of shared point-to-multipoint links, the 5G Ethernet-based fronthaul brings new requirements in terms of latency for an inherently bursty traffic. This is expected to promote the deployment of a whole new class of optical devices that can perform with burst-mode traffic while realizing routing functionalities at a low-latency and energy envelope, avoiding in this way the latency burden associated with a complete optoelectronic Ethernet routing process and acting as a fast optical gateway for ultra-low latency requiring signals. Wavelength conversion can offer a reliable option for ultra-fast routing in access and fronthaul networks, provided, however, that it can at the same time offer both packet power-level equalization to account for differences in optical path losses and comply with the typical, in optical fronthauling, NRZ format. In this paper, we demonstrate an optical Burst-Mode Wavelength Converter using a Differentially-Biased SOA-MZI that operates in the deeply saturated regime to provide optical output power equalization for different input signal powers. The device has been experimentally validated for 10Gb/s NRZ optical packets, providing error-free operation for an input packet peak-power dynamic range of more than 9dB.

Paper Details

Date Published: 1 February 2019
PDF: 6 pages
Proc. SPIE 10945, Broadband Access Communication Technologies XIII, 1094506 (1 February 2019); doi: 10.1117/12.2507850
Show Author Affiliations
A. Tsakyridis, Aristotle Univ. of Thessaloniki (Greece)
M. Moralis-Pegios, Aristotle Univ. of Thessaloniki (Greece)
C. Vagionas, Aristotle Univ. of Thessaloniki (Greece)
K. Vyrsokinos, Aristotle Univ. of Thessaloniki (Greece)
N. Pleros, Aristotle Univ. of Thessaloniki (Greece)

Published in SPIE Proceedings Vol. 10945:
Broadband Access Communication Technologies XIII
Benjamin B. Dingel; Katsutoshi Tsukamoto; Spiros Mikroulis, Editor(s)

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