loading
Papers

Research.Publish.Connect.

Paper

Authors: Diogo G. Sequeira 1 ; Luís G. Cancela 2 and João L. Rebola 2

Affiliations: 1 Optical Communications and Photonics Group, Instituto de Telecomunicações, Lisbon and Portugal ; 2 Optical Communications and Photonics Group, Instituto de Telecomunicações, Lisbon, Portugal, Department of Information Science and Technology, Instituto Universitário de Lisboa (ISCTE-IUL), Lisbon and Portugal

ISBN: 978-989-758-319-3

Keyword(s): ASE Noise, Broadcast and Select, In-Band Crosstalk, Nyquist Pulse, Optical Filtering, ROADMs, Route and Select.

Related Ontology Subjects/Areas/Topics: Optical Communication Systems ; Optical Networks Performance Modeling ; Telecommunications

Abstract: Nowadays, reconfigurable optical add/drop multiplexers (ROADMs) are mainly based on broadcast and select (B&S) and route and select (R&S) architectures. Moreover, the most used components to implement the colorless, directionless and contentionless (CDC) ROADM add/drop structures are the multicast switches (MCSs) and the wavelength selective switches (WSSs). In-band crosstalk, amplified spontaneous emission (ASE) noise accumulation and optical filtering are physical layer impairments (PLIs) that become more enhanced in a CDC ROADM cascade. In this work, we investigate the impact of these PLIs in a cascade of CDC ROADMs based on both B&S and R&S architectures, with MCSs and WSSs-based add/drop structures and for nonreturn-to-zero (NRZ) rectangular and Nyquist pulse shaped signals. We show that the optical filtering impairment is more limiting for a R&S architecture. We also show that the ASE noise accumulation after 32 cascaded ROADMs leads to a 10 dB optical signal-to-noise ratio (OSN R) penalty for all ROADM degrees investigated. We have also concluded that the in-band crosstalk leads to a 1 dB OSNR penalty, after 13 and 24 cascaded 16-degree CDC ROADMs based on B&S for, respectively, NRZ rectangular and Nyquist pulse shapes. For a R&S architecture, the in-band crosstalk is not so harmful. (More)

PDF ImageFull Text

Download
CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 35.172.217.40

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
G. Sequeira, D.; G. Cancela, L. and L. Rebola, J. (2018). Physical Layer Impairments in Cascaded Multi-degree CDC ROADMs with NRZ and Nyquist Pulse Shaped Signals.In Proceedings of the 15th International Joint Conference on e-Business and Telecommunications - Volume 1 DCNET, ICE-B, OPTICS, SIGMAP and WINSYS: ICETE, ISBN 978-989-758-319-3, pages 223-231. DOI: 10.5220/0006861103890397

@conference{icete18,
author={Diogo G. Sequeira. and Luís G. Cancela. and João L. Rebola.},
title={Physical Layer Impairments in Cascaded Multi-degree CDC ROADMs with NRZ and Nyquist Pulse Shaped Signals},
booktitle={Proceedings of the 15th International Joint Conference on e-Business and Telecommunications - Volume 1 DCNET, ICE-B, OPTICS, SIGMAP and WINSYS: ICETE,},
year={2018},
pages={223-231},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006861103890397},
isbn={978-989-758-319-3},
}

TY - CONF

JO - Proceedings of the 15th International Joint Conference on e-Business and Telecommunications - Volume 1 DCNET, ICE-B, OPTICS, SIGMAP and WINSYS: ICETE,
TI - Physical Layer Impairments in Cascaded Multi-degree CDC ROADMs with NRZ and Nyquist Pulse Shaped Signals
SN - 978-989-758-319-3
AU - G. Sequeira, D.
AU - G. Cancela, L.
AU - L. Rebola, J.
PY - 2018
SP - 223
EP - 231
DO - 10.5220/0006861103890397

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.