Raman Amplification Optimization in Short-Reach High Data Rate Coherent Transmission Systems †

We compared the transmission performances of 600 Gbit/s PM-64QAM WDM signals over 75.6 km of single-mode fibre (SMF) using EDFA, discrete Raman, hybrid Raman/EDFA, and first-order or second-order (dual-order) distributed Raman amplifiers. Our numerical simulations and experimental results showed tha...

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Detalles Bibliográficos
Autores principales: Tan, Mingming, Iqbal, Md Asif, Nguyen, Tu T., Rosa, Paweł, Krzczanowicz, Lukasz, Phillips, Ian. D., Harper, Paul, Forysiak, Wladek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8512884/
https://www.ncbi.nlm.nih.gov/pubmed/34640840
http://dx.doi.org/10.3390/s21196521
Descripción
Sumario:We compared the transmission performances of 600 Gbit/s PM-64QAM WDM signals over 75.6 km of single-mode fibre (SMF) using EDFA, discrete Raman, hybrid Raman/EDFA, and first-order or second-order (dual-order) distributed Raman amplifiers. Our numerical simulations and experimental results showed that the simple first-order distributed Raman scheme with backward pumping delivered the best transmission performance among all the schemes, notably better than the expected second-order Raman scheme, which gave a flatter signal power variation along the fibre. Using the first-order backward Raman pumping scheme demonstrated a better balance between the ASE noise and fibre nonlinearity and gave an optimal transmission performance over a relatively short distance of 75 km SMF.

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