Ultrawideband Systems and Networks: Beyond C + L-Band

In the evolution of optical networks, spectral efficiency (SE) enhancement has been the most cost-efficient and thus the main driver for capacity increase for decades. As a result, the development of optical transport systems has been focused on the C - and L -bands, where silica optical fiber exh...

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Bibliographic Details
Published in:Proceedings of the IEEE 2022-11, Vol.110 (11), p.1725-1741
Main Authors: Hoshida, Takeshi, Curri, Vittorio, Galdino, Lidia, Neilson, David T., Forysiak, Wladek, Fischer, Johannes K., Kato, Tomoyuki, Poggiolini, Pierluigi
Format: Article
Language:English
Subjects:
Doped fibers
Erbium
Mathematical models
Networks
Nonlinear optics
Optical communication
Optical fiber networks
Optical fibers
optical network and switching
Optical receivers
Optical scattering
optical transceiver (TRx)
Optical wavelength conversion
Raman amplification
Transportation systems
Ultrawideband
ultrawideband (UWB) transmission
wavelength conversion
Wavelength division multiplexing
wavelength-division multiplexing (WDM)
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Summary:In the evolution of optical networks, spectral efficiency (SE) enhancement has been the most cost-efficient and thus the main driver for capacity increase for decades. As a result, the development of optical transport systems has been focused on the C - and L -bands, where silica optical fiber exhibits the lowest attenuation, and erbium-doped fiber amplifiers provide an efficient solution to compensate for the optical loss. With a gradual maturity in the SE growth, however, the extension of the optical bandwidth beyond the C + L -band is expected to play a significant role in future capacity upgrades of optical networks and, thus, attract increasing research interests. In this article, we discuss the merits and challenges of ultrawideband optical transport systems and networks beyond conventional bands.
ISSN:0018-9219
1558-2256
DOI:10.1109/JPROC.2022.3202103