Photonics 2018, 5(4), 45; https://doi.org/10.3390/photonics5040045
TDM-PON PAM Downstream Transmission for 25 Gbit/s and Beyond
Sylvain Barthomeuf 1,2,*
, Fabienne Saliou 1, Luiz Anet Neto 1, Philippe Chanclou 1 and Didier Erasme 2
, Fabienne Saliou 1, Luiz Anet Neto 1, Philippe Chanclou 1 and Didier Erasme 21
Orange Labs, 2 Avenue Pierre Marzin, 22300 Lannion, France
2
LTCI, Télécom ParisTech, Paris-Saclay University, 75013 Paris, France
*
Author to whom correspondence should be addressed.
Received: 15 October 2018 / Revised: 29 October 2018 / Accepted: 31 October 2018 / Published: 2 November 2018
(This article belongs to the Special Issue Lightwave Communications and Optical Networks)
Abstract
The optical access network is currently driving studies on transmissions beyond 10 Gbit/s. This paper reports an analysis of Pulse Amplitude Modulation (PAM), seen as a promising candidate for future Passive Optical Networks (PON). Previous 25 Gbit/s real-time PAM4 results are extrapolated here with simulations to higher bit rates and a higher number of PAM levels. Our main goal is to evaluate the compliancy of PAM with the existing standards and legacy networks as far as fiber length, optical budget class, and wavelength plan are concerned. The simulations enlighten us as to the challenges of multilevel modulation formats, such as noise and jitter, compared to the currently adopted Non-Return-to-Zero (NRZ). View Full-TextKeywords:
access networks; Intensity Modulation Direct Detection (IMDD); optical fiber communication; Pulse Amplitude Modulation (PAM); Passive Optical Networks (PON)
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Barthomeuf, S.; Saliou, F.; Anet Neto, L.; Chanclou, P.; Erasme, D. TDM-PON PAM Downstream Transmission for 25 Gbit/s and Beyond. Photonics 2018, 5, 45.
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