Astrid Lozada;Ricardo Olivares;Bárbara Dumas Feris;Ariel Leiva;Gabriel Saavedra;Nicolás Jara;Patricia Morales;Danilo Bórquez-Paredes
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Optimized Backward Pumping Design for a 6-Mode Distributed Raman Amplifier for SDM Systems
We present the first optimized design and characterization of a six-mode distributed Raman amplifier (6M-DRA) for next-generation optical communication systems using space-division multiplexing (SDM) based on few-mode fibers (FMF). A genetic algorithm optimizes the pumping profile to minimize gain ripple and differential modal gain (DMG). Numerical results show an average on-off gain of 9.5 dB over 70 km, gain ripple below 1 dB, DMG under 2.10 dB, effective noise figure under 1.42 dB, optical signal-to-noise ratio larger than 29.5 dB, and pump efficiency of 9.30 dB/W, demonstrating its potential as an effective amplification solution for future SDM-FMF optical networks.
期刊介绍:
The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.