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- Title
Raman Amplification Optimization in Short-Reach High Data Rate Coherent Transmission Systems †.
- Authors
Tan, Mingming; Iqbal, Md Asif; Nguyen, Tu T.; Rosa, Paweł; Krzczanowicz, Lukasz; Phillips, Ian. D.; Harper, Paul; Forysiak, Wladek
- Abstract
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.
- Subjects
RAMEN; RAMAN lasers; SINGLE-mode optical fibers; OPTICAL communications; COMPUTER simulation
- Publication
Sensors (14248220), 2021, Vol 21, Issue 19, p6521
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s21196521