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1. Saturated collision amplifier for the extended reach Passive Optical Networks: The upstream challenge

Author

Hacene Chaouch, Peter Meissner, Christian Gierl, Karolina Zogal, Tuomo von Lerber, and F. Kueppers

Subjects
Access network, Computer science, Amplifier, Electronic engineering, Upstream (networking), Collision, Passive optical network, Downstream (networking), Phase modulation, Vertical-cavity surface-emitting laser
Abstract

In this paper we discuss about the extended reach 10-Gbit/s Passive Optical Network (XGPON) and the use of a Saturated Collision Amplifier (SCA) for the up- and downstream extension. Especially the upstream amplification is challenging because of the used (i.e. standardized) wavelength and the bursty nature of the traffic. In order to benefit the SCA scheme, the Optical Network Units (ONUs) have to be equipped with low-cost DPSK transmitters. The use of widely tunable direct modulated VCSELs are proposed and discussed.

Published
2011
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