Unrepeatered 240-km 64-QAM transmission using distributed raman amplification over SMF fiberShow others and affiliations
2020 (English)In: Applied Sciences, E-ISSN 2076-3417, Vol. 10, no 4, article id 1433Article in journal (Refereed) Published
Abstract [en]
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. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Place, publisher, year, edition, pages
MDPI AG , 2020. Vol. 10, no 4, article id 1433
Keywords [en]
Digital backpropagation, Distributed raman amplification, Unrepeatered 64-QAM transmission
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-44890DOI: 10.3390/app10041433Scopus ID: 2-s2.0-85081747840OAI: oai:DiVA.org:ri-44890DiVA, id: diva2:1433180
Note
Funding details: Vetenskapsrådet, VR; Funding details: 608099, 324391; Funding details: Engineering and Physical Sciences Research Council, EPSRC, EP/S003436/1; Funding details: Vetenskapsrådet, VR, 2016-04510; Funding details: Ministerio de Ciencia e Innovación, MICINN, RTI2018-097957-B-C33; Funding details: Multiple Sclerosis Center of Atlanta, MSCA, 748767; Funding details: Comunidad de Madrid, 2017-01559, S2018/NMT-4326 SINFOTON2-CM; Funding details: Ministerio de EconomÃa y Competitividad, MINECO, TEC2015-71127-C2; Funding text 1: This work was funded by MSCA IF grant SIMFREE (No. 748767), Swedish Research Council (VR) project PHASE (2016-04510), the People Program of the European Union FP7 under grant (608099) and project GRIFFON (324391), Spanish MINECO grant TEC2015-71127-C2 and Spanish MICINN grant RTI2018-097957-B-C33, Comunidad de Madrid grant S2018/NMT-4326 SINFOTON2-CM, Swedish VINNOVA-funded project Center for Software-Defined Optical Networks (no. 2017-01559), and UK EPSRC program grant PHOS (EP/S003436/1). We thank Z. Sun and L. Zhang for providing FBGs.
2020-05-292020-05-292024-03-11Bibliographically approved