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Media type:
E-Article
Title:
Multi-wavelength transponders for high-capacity optical networks: a physical-layer-aware network planning study
Contributor:
Müller, Jasper;
Jovanovic, Ognjen;
Fehenberger, Tobias;
Di Rosa, Gabriele;
Elbers, Jörg-Peter;
Mas-Machuca, Carmen
Published:
Optica Publishing Group, 2023
Published in:
Journal of Optical Communications and Networking, 15 (2023) 7, Seite C138
Language:
English
DOI:
10.1364/jocn.483320
ISSN:
1943-0639;
1943-0620
Origination:
Footnote:
Description:
Continued cost- and power-efficient capacity scaling in optical networks is imperative to keep pace with ever-increasing traffic demands. In this paper, we investigate multi-wavelength transponders as a potential way forward. Suitable system architectures and realistic specifications of multi-wavelength transponders are identified and analyzed in terms of transmit optical signal-to-noise ratio penalties and spectral constraints. We investigate the performance for different specifications as compared to single-wavelength transponders in a network planning study on two network topologies, developing guidelines for multi-wavelength transponder specifications and their potential benefits. The studies show a reduction in the number of required lasers of up to 83% at the expense of a slight increase in the number of lightpaths, demonstrating the potential for significant cost savings and efficiency improvements.