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arXiv · 2305.07330

Multi-Wavelength Transponders for High-capacity Optical Networks: A Physical-layer-aware Network Planning Study

Jasper Müller·Ognjen Jovanovic·Tobias Fehenberger·Gabriele Di Rosa·Jörg-Peter Elbers·Carmen Mas-Machuca
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Abstract

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 OSNR 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 transponders 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 number of lightpaths, demonstrating the potential for significant cost savings and efficiency improvements.

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Jasper Müller, Ognjen Jovanovic, Tobias Fehenberger, Gabriele Di Rosa, Jörg-Peter Elbers, Carmen Mas-Machuca. 2023-05-12. Multi-Wavelength Transponders for High-capacity Optical Networks: A Physical-layer-aware Network Planning Study. https://doi.org/10.1364/jocn.483320

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