Details

Autor(en) / Beteiligte

• Sambo, Nicola
• Ferrari, Alessio
• Napoli, Antonio
• Costa, Nelson
• Pedro, Joao
• Sommerkorn-Krombholz, Bernd
• Castoldi, Piero
• Curri, Vittorio

Titel

Provisioning in Multi-Band Optical Networks

Ist Teil von

• Journal of lightwave technology, 2020-05, Vol.38 (9), p.2598-2605

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2020

Quelle

IEEE Xplore

Beschreibungen/Notizen

• Multi-band (MB) optical transmission promises to extend the lifetime of existing optical fibre infrastructures, which usually transmit within the C-band only, with C<inline-formula><tex-math notation="LaTeX">\rm +</tex-math></inline-formula>L-band being also used in a few high-capacity links. In this work, we propose a physical-layer-aware provisioning scheme tailored for MB systems. This solution utilizes the physical layer information to estimate, by means of the generalized Gaussian noise (GGN) model, the generalized signal-to-noise ratio (GSNR). The GSNR is evaluated assuming transmission up to the entire low-loss spectrum of optical fiber, i.e., from 1260 to 1625 nm. We show that MB transmission may lead to a considerable reduction of the blocking probability, despite the increased transmission penalties resulting from using additional optical fiber transmission bands. Transponders supporting several modulation formats (polarization multiplexing - PM - quadrature phase shift keying - PM-QPSK -, PM 8 quadrature amplitude modulation - PM-8QAM -, and PM-16QAM) from O- to L-band are considered. An increase of the accommodated traffic with respect to the C-band transmission only case, ranging from about four times with S<inline-formula><tex-math notation="LaTeX">\rm +</tex-math></inline-formula>C<inline-formula><tex-math notation="LaTeX">\rm +</tex-math></inline-formula>L-band and up to more than six times when transmitting from E to L-band is reported.