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Personal profile

Research profile

Nicola Calabretta is an Assistant Professor in Electro-Optical Communication Systems and Senior Research Fellow at Eindhoven University of Technology (TU/e). His expertise is in telecommunications engineering, electrical engineering and optical engineering. Nicola’s research focuses on optical signal processing for highly spectral efficient multi-level modulation formats, high-speed electronics for processing of novel labeling techniques, FPGA implementation of scheduling algorithms for low latency control of large port optical switches, optical interconnects, photonic integrated wavelength selector with flexible bandwidth, photonic integrated optical switches and c optical nodes for metro networks. Applications of the group’s work on fast optical switches include performance enhancement for optical metro/access networks and data center networks.

Academic background

Nicola Calabretta received his PhD from TU/e in 2004 for his work in all-optical signal processing and optical packet switching. Prior to this, he studied Telecommunications Engineering at the Politecnico di Torino. Before joining the TU/e, he conducted research at DTU Fotonik, the Department of Photonics Engineering at the technical University of Denmark, where he worked on Radio-over-Fiber. He completed a postdoc at the Sant'Anna School of Advanced Studies (SSSA, Scuola Superiore di Studi Universitari e di Perfezionamento Sant'Anna) in Pisa, Italy, focusing on wavelength division multiplexing, passive optical network and optical transmission systems employing advanced modulation formats.

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Projects 2017 2022

Wideband Optical Networks

Calabretta, N., van der Avoird, M., Moerenhout, M., Moerenhout, M. & Calabretta, N.


Project: Research direct

Data center Optical Switch Network Application deployment and modelling

Calabretta, N., Exarchakos, G., Moerenhout, M., Moerenhout, M., Calabretta, N. & Croes, S.


Project: Research direct


van Hout, J., Calabretta, N., Raz, O., Stabile, P., Moerenhout, M., Tessema, N. & Li, C.


Project: Research direct


Calabretta, N., Croes, S., Moerenhout, M., Moerenhout, M., Prifti, K. & Exarchakos, G.


Project: Research direct


van Hout, J., Calabretta, N., Moerenhout, M. & Moerenhout, M.


Project: Research direct

Research Output 2000 2019

High performance scalable data center and computer network architectures based on distributed fast optical switches

Yan, F., 11 Apr 2019, Eindhoven: Technische Universiteit Eindhoven. 139 p.

Research output: ThesisPhd Thesis 1 (Research TU/e / Graduation TU/e)Academic

Open Access
Optical switches
Computer networks
Network architecture

Voltage-driven near field beam shifting in an InP photonic integrated circuit

Cardarelli, S., Calabretta, N., D'Agostino, D., Stabile, R. & Williams, K. A., Feb 2019, In : IEEE Journal of Quantum Electronics. 55, 1, 10 p., 8584479

Research output: Contribution to journalArticleAcademicpeer-review

integrated circuits
Integrated circuits
near fields
4 Citations (Scopus)

50 Gb/s indoor optical wireless communication equipped with millimeter-wave backup system and localization and tracking

Mekonnen, K. A., Cao, Z., Calabretta, N., Tangdiongga, E. & Koonen, A. M. J., 24 Apr 2018, 43rd European Conference on Optical Communication, ECOC 2017. Institute of Electrical and Electronics Engineers (IEEE), p. 1-3 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Millimeter waves
Radio systems
Telecommunication links

A novel modular ROADM mode with traffic aggregation/disaggregation for ultra-high capacity SDM metro networks

Tessema, N. M., Prifti, K., Pan, B., Stabile, R. & Calabretta, N., 2018, 2018 European Conference on Optical Communication (ECOC). Piscataway: Institute of Electrical and Electronics Engineers (IEEE), 3 p. 18265232

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
Optical switches
1 Citation (Scopus)

A novel scalable and low latency hybrid data center network architecture based on flow controlled fast optical switches

Yan, F., Guelbenzu, G. & Calabretta, N., 13 Jun 2018, 2018 Optical Fiber Communications Conference and Exposition, OFC 2018 - Proceedings. Piscataway: Institute of Electrical and Electronics Engineers (IEEE), 3 p. W2A.23

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Optical switches
Packet loss
Network architecture
Electric power utilization

Activities 2011 2011

  • 1 Contributed talk

5th International Symposium on Ultrafast Photonic Technologies (ISUPT2011), 15-16 Septmber 2011, Berlin

Nicola Calabretta (Speaker)
15 Sep 2011

Activity: Talk or presentation typesContributed talkScientific