Distance-adaptive modulation for space-division multiplexed optical systems

• Grant number: 17/25537-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2018
• End date: January 08, 2023
• Field of knowledge: Engineering - Electrical Engineering - Telecommunications
• Principal Investigator: Darli Augusto de Arruda Mello
• Grantee: Ruby Stella Bravo Ospina
• Host Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant: 15/24341-7 - New strategies to confront with the threat of capacity exhaustion, AP.TEM
• Associated scholarship(s): 18/25414-6 - Channel Estimation in Optical Systems with Space-Division Multiplexing, BE.EP.DR

Abstract

The evolution of the demand for inter- and intra-datacenter data traffic requires solutions of fiber-optic communication systems that are energy efficient, maintaining the trend of reducing the cost per transmitted bit. Space-Division Multiplexing (SDM) is a promising solution, if not the only one, capable of meeting these requirements. In this technique, distinct signals are simultaneously transmitted in different spaces using bundles of single-mode optical fibers in a cable, multi-core fibers or multimode fibers. As a long-term option, spatial multiplexing with channel coupling is of particular interest, whether in multicore fibers with coupled cores or with multimode fibers. In these systems, Multiple-In Multiple-Out (MIMO) digital signal processing techniques are required, which, however, increases the computational complexity of the transceivers. As in today's flexible optical systems, future SDM systems must adapt to the reach of the transmission link. For this, channel estimation techniques and decision making are required to adapt the modulation formats and the digital signal processing algorithms in the transmitter and receiver. In this scenario, this thesis aims to investigate channel estimation techniques in SDM systems with modal coupling, as well as the adaptation of the underlying modulation and digital signal processing algorithms. We will also evaluate the interest in the dissemination of physical layer parameters to upper layers, aiming at a future integration of the transceiver to the control plane. The work will include computational simulations and possibly experimental measurements in partner laboratories. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

OSPINA, RUBY S. B.; VAN DEN HOUT, MENNO; ALVARADO-ZACARIAS, JUAN CARLOS; ANTONIO-LOPEZ, JOSE ENRIQUE; BIGOT-ASTRUC, MARIANNE; CORREA, ADRIAN AMEZCUA; SILLARD, PIERRE; AMEZCUA-CORREA, RODRIGO; OKONKWO, CHIGO; MELLO, DARLI A. A.. Mode-Dependent Loss and Gain Estimation in SDM Transmission Based on MMSE Equalizers. Journal of Lightwave Technology, v. 39, n. 7, p. 1968-1975, APR 1 2021. (18/14026-5, 15/24517-8, 17/25537-8, 15/24341-7, 18/25414-6)

VAN DEN HOUT, MENNO; OSPINA, RUBY S. B.; VAN DER HEIDE, SJOERD; ALVARADO-ZACARIAS, JUAN CARLOS; ANTONIO-LOPEZ, JOSE ENRIQUE; BIGOT-ASTRUC, MARIANNE; CORREA, ADRIAN AMEZCUA; SILLARD, PIERRE; AMEZCUA-CORREA, RODRIGO; MELLO, DARLI A. A.; et al. Experimental validation of MDL emulation and estimation techniques for SDM transmission systems. 2020 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATIONS (ECOC), v. N/A, p. 4-pg., 2020-01-01. (17/25537-8, 15/24341-7, 15/24517-8)

OSPINA, RUBY S. B.; VAN DEN HOUT, MENNO; VAN DER HEIDE, SJOERD; VAN WEERDENBURG, JOHN; RYF, ROLAND; FONTAINE, NICOLAS K.; CHEN, HAOSHUO; AMEZCUA-CORREA, RODRIGO; OKONKWO, CHIGO; MELLO, DARLI A. A.. MDG and SNR Estimation in SDM Transmission Based on Artificial Neural Networks. Journal of Lightwave Technology, v. 40, n. 15, p. 10-pg., 2022-08-01. (17/25537-8, 18/25414-6, 15/24341-7, 18/14026-5)

OSPINA, RUBY S. B.; VAN DEN HOUT, MENNO; VAN DER HEIDE, SJOERD; OKONKWO, CHIGO; MELLO, DARLI A. A.; IEEE. Neural-network-based MDG and Optical SNR Estimation in SDM Transmission. 2021 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC), v. N/A, p. 3-pg., 2021-01-01. (15/24517-8, 18/25414-6, 17/25537-8, 15/24341-7)

MELLO, DARLI A. A.; OSPINA, RUBY S. B.; SRINIVAS, HRISHIKESH; CHOUTAGUNTA, KARTHIK; CHOU, ELAINE; KAHN, JOSEPH M.; IEEE. Impact and Mitigation of Mode-Dependent Gain in Ultra-Long-Haul SDM Systems. 2023 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION, OFC, v. N/A, p. 3-pg., 2023-01-01. (15/24341-7, 17/25537-8, 22/07488-8)

OSPINA, RUBY S. B.; RADEMACHER, GEORG; IS, RUBEN S. LU PRIME; PUTTNAM, BENJAMIN J.; FONTAINE, NICOLAS K.; MAZUR, MIKAEL; CHEN, HAOSHUO; RYF, ROLAND; NEILSON, DAVID T.; DAHL, DANIEL; et al. Experimental Investigation of Reduced Complexity MIMO Equalization in a 55-Mode Fiber SDM Transmission System. 2023 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION, OFC, v. N/A, p. 3-pg., 2023-01-01. (15/24341-7, 17/25537-8, 22/07488-8)

OSPINA, RUBY S. B.; OKONKWO, CHIGO; MELLO, DARLI A. A.; IEEE. DSP-based Mode-dependent Loss and Gain Estimation in Coupled SDM Transmission. 2020 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXPOSITION (OFC), v. N/A, p. 3-pg., 2020-01-01. (15/24517-8, 18/25414-6, 17/25537-8, 15/24341-7)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

OSPINA, Ruby Stella Bravo. Estimação de parâmetros em sistemas de transmissão com multiplexação por divisão espacial baseada em processamento digital de sinais. 2023. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Elétrica e de Computação Campinas, SP.