Experimental Study on 25 Gbps C-Band PON over up to 25 km SMF Using a 10G-Class DML + APD IM-DD System

In this paper we present an experimental analysis of several modulation formats (pulse amplitude modulation (PAM-2), quaternary pulse amplitude modulation (PAM-4) and electrical duobinary (EDB)) for passive optical network (PON) applications at 25 Gbps bit rate in a C-band 10G-class directly modulat...

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Bibliographic Details
Published in:Photonics
Main Authors: Haoyi Wang, Pablo Torres-Ferrera, Valter Ferrero, Roberto Gaudino
Format: Text
Language:English
Published: Multidisciplinary Digital Publishing Institute 2021
Subjects:
C-band
10G-class DML
frequency response
chromatic dispersion
dispersion penalty
power fading
chirp
DML
Online Access:https://doi.org/10.3390/photonics8080328
Description
Summary:In this paper we present an experimental analysis of several modulation formats (pulse amplitude modulation (PAM-2), quaternary pulse amplitude modulation (PAM-4) and electrical duobinary (EDB)) for passive optical network (PON) applications at 25 Gbps bit rate in a C-band 10G-class directly modulated lasers (DML) and avalanche photodiode (APD) intensity modulation and direct detection (IM-DD) system over a single mode fiber (SMF) of up to 25 km, optimizing DML operations and demonstrating that PAM-2 is a promising choice. We also theoretically and experimentally analyzed the channel frequency response of DML and SMF affected by DML chirp and SMF chromatic dispersion.

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