Open AccessNetworking assessment of ROADM architecture based on a photonics integrated WSS for 800G multi-band optical transport
Author(s) -
Muhammad Umar Masood,
Lorenzo Tunesi,
Ihtesham Khan,
Bruno Correia,
Rasoul Sadeghi,
Enrico Ghillino,
Paolo Bardella,
Andrea Carena,
Vittorio Curri
Publication year - 2023
Publication title -
journal of optical communications and networking
Language(s) - English
Resource type - Journals
eISSN - 1943-0639
pISSN - 1943-0620
DOI - 10.1364/jocn.489754
Subject(s) - communication, networking and broadcast technologies , photonics and electrooptics
The capacity of the optical transport network must be expanded to support the increasing demand due to bandwidth-intensive applications. Multi-band transmission solutions can achieve this goal by exploiting the low-loss optical spectrum windows while maintaining the same existing fiber infrastructure, increasing the network’s capacity, and minimizing the operator capital expenditure (CAPEX) by limiting the need for a new fiber deployment. In the context of multi-band transmission, this work proposes a novel reconfigurable optical add–drop multiplexer (ROADM) architecture using a modular photonic integrated multi-band wavelength selective switch (WSS) that operates over multi-bands (S $+$ C $+$ L). This study focuses on conducting a comprehensive network performance analysis of different settings, enabling operation from 400G up to 800G using the proposed multi-band WSS on two real network topologies: German and Italian. The results provide the potential benefits of transitioning from traditional C-band transmission to multi-band transmission based on overall network performance.