We present a theoretical and experimental investigation of unrepeatered transmission over standard single-mode fiber (SMF-28) using several schemes of distributed Raman amplification, including first, second, and dual order. In order to further extend the transmission distance, we utilize advanced bidirectional higher-order ultra-long Raman fiber laser-based amplification, where we use fiber Bragg gratings (FBGs) to reflect Stokes-shifted light from the secondary pumps. Our work demonstrates the possibility of transmission up to 240-km span length with a total span loss of 52.7 dB. Here, we use a 28-Gbaud signal using a 64-quadrature amplitude modulation (QAM) modulation format. Our results highlight the contribution of nonlinear compensation using digital back propagation in a digital signal processor (DSP) code at the receiver.

Unrepeatered 240-km 64-QAM transmission using distributed raman amplification over SMF fiber / Rosa, P.; Rizzelli, G.; Pang, X.; Ozolins, O.; Udalcovs, A.; Tan, M.; Jaworski, M.; Marciniak, M.; Sergeyev, S.; Schatz, R.; Jacobsen, G.; Popov, S.; Ania-Castanon, J. D.. - In: APPLIED SCIENCES. - ISSN 2076-3417. - ELETTRONICO. - 10:4(2020), p. 1433. [10.3390/app10041433]

Unrepeatered 240-km 64-QAM transmission using distributed raman amplification over SMF fiber

Rizzelli G.;
2020

Abstract

We present a theoretical and experimental investigation of unrepeatered transmission over standard single-mode fiber (SMF-28) using several schemes of distributed Raman amplification, including first, second, and dual order. In order to further extend the transmission distance, we utilize advanced bidirectional higher-order ultra-long Raman fiber laser-based amplification, where we use fiber Bragg gratings (FBGs) to reflect Stokes-shifted light from the secondary pumps. Our work demonstrates the possibility of transmission up to 240-km span length with a total span loss of 52.7 dB. Here, we use a 28-Gbaud signal using a 64-quadrature amplitude modulation (QAM) modulation format. Our results highlight the contribution of nonlinear compensation using digital back propagation in a digital signal processor (DSP) code at the receiver.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2831132