RTU Fotonikas, elektronikas un elektronisko sakaru institūts

25/04/2026

Mūsu doktorants Nauris Silkāns prezentē progresu un sasniegtos rezultātus LACHMAT projekta ietvaros, pētot šķiedru optisko sensoru tīklu lietojumu ceļa seguma uzraudzībai.

Optiskās šķiedras sensori nodrošina augstas izšķirtspējas reāllaika tehniskā stāvokļa monitoringu. To integrēšana asfalta segumos nākotnē varētu ļaut veikt ceļu infrastruktūras uzraudzību tīkla mērogā, palīdzot efektīvāk apsaimniekot infrastruktūru un pagarināt tās kalpošanas laiku.

07/04/2026

Excited to share our new publication in IET Optoelectronics!

Our review article explores the rapidly growing field of mid-infrared free-space optical communications, covering key technologies, recent demonstrations, and future directions for robust, high-capacity wireless links.

Many thanks to all co-authors and collaborators for their valuable contributions to this work.

Please find the article here: https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/ote2.70034

Cite: Cirjulina, Darja, Zhuoyan Zhang, Abdul Hayee, et al. 2026. “Mid-Infrared Free-Space Optical Communications: Technologies, Demonstrations and Future Directions,” IET Optoelectronics: e70034. https://doi.org/10.1049/ote2.70034.

This work is supported by the ERDF‐funded PANTHERS project (No. 1.1.1.3/1./24/A/013).

Free-space optical (FSO) communication is increasingly extending beyond the near-infrared to the mid-wave infrared (MWIR) and long-wave infrared (LWIR) regions, which offer reduced turbulence, scatte...

24/03/2026

We’re continuing to advance our interconnection device designed for seamless switching between wireless technologies. Recent proof-of-concept testing shows promising results - with improved switching speeds and enhanced connection stability between Wi-Fi and private 5G networks.

📶 Our current focus is on QoS/QoE requirements for delivering reliable Internet services to automotive systems. We’ve completed the first phase, including:
✔️ A comprehensive analysis of existing automotive connectivity solutions
✔️ Evaluation of their strengths, limitations, and requirements
✔️ Insights into future Internet traffic trends and service demands

📄The "TRANSFER" team has also submitted a scientific paper titled “Propagation Analysis of 4G/5G Mobile Networks Along Railway Lines: Implications for FRMCS Deployment in Latvia” to an MDPI journal. This paper investigates propagation characteristics and will serve as a scientific foundation for the future development of Interconnection device, particularly for railway applications.

💡 This work is supported by the European Regional Development Fund
Project: Multipath Roaming Solution for Open RAN (TRANSFER)
No. 1.1.1.3/1/24/A/018

13/02/2026

On February 13, 2026, the Ph.D. thesis defense of Tianhua Chen — “Fine-Grained Monitoring and Classification of Interactive Media Network Traffic” — successfully took place 🎓📡

During the defense, the candidate presented research results on advanced methods for fine-grained monitoring and classification of interactive media network traffic, highlighting their importance for modern network analysis, performance optimization, and intelligent traffic management.

Academic supervisors:
• Elans Grabs, Associate Professor Dr. sc. ing. (RTU)
• Aleksandrs Ipatovs, Associate Professor Dr. sc. ing. (RTU)

Co-advisor:
• María Dolores Cano Baños, Professor PhD (UPCT)

We would also like to acknowledge that Professor María Dolores Cano Baños actively contributed to the development of the research and played an important role in its academic advancement.

Congratulations to Tianhua Chen on this significant academic milestone, and sincere thanks to the supervisors and co-advisor for their valuable guidance and support! 🙌✨

11/02/2026

Last week, representatives of Rohde & Schwarz from Latvia and Finland visited the RTU Institute of Photonics, Electronics and Telecommunications to deliver the seminar “Oscilloscope & Probing” for lecturers and students 🔧📈

Participants deepened their understanding of oscilloscope operating principles and probing technologies, with a special focus on bandwidth, sampling rate, memory usage, resolution, and signal triggering/synchronization. The practical demonstrations also covered the impact of probe loading, the importance of grounding, measurement system bandwidth, and electrical safety 📊✨

Thank you to the Rohde & Schwarz team for a professional and valuable seminar, and to all participants for their active engagement! 🙌
Rohde & Schwarz team: Gatis Tillers, Pasi Suhonen

05/02/2026

In January, we were pleased to launch a successful collaboration between the Lithuanian company Teltonika - a developer and manufacturer of networking and telecommunications equipment - and Riga Technical University’s Institute of Photonics, Electronics and Telecommunications. 🤝🇱🇹🇱🇻

As part of this partnership, Teltonika provided the Institute with modern networking and communications equipment for use in:
🔹 scientific research projects
🔹 the study process
🔹 practice-oriented educational programmes

This collaboration strengthens knowledge and technology transfer between academia and industry, enhances research capacity, and supports the development of innovative solutions in electronic communications and network technologies. 🚀📡

Thank you to Teltonika for your trust and contribution to advancing future technologies! 💡

16/01/2026

17. janvārī RTU ikmēneša lekciju ciklā «Universitāte nākotnes inženieriem» jeb UNI pulcēsies 8.–12. klases skolēni, lai gūtu plašākas zināšanas par sensoru tehnoloģijām, mākslīgā intelekta jēgpilnu li...

07/01/2026

Lai veicinātu sadarbību un sekmētu kvantu fotonikas attīstību Baltijas reģionā un ārpus tā, 11.–13. februārī Rīgas Tehniskajā universitātē (RTU) starptautiskā konferencē pulcēsies pētnieki un praktiķi kvantu optikas, integrētās fotonikas, kvantu komunikācijas, kvantu skaitļ...

15/12/2025

Turpinot paplašināt Baltijas un Ziemeļvalstu mikroshēmu kompetences centru sadarbību, parakstīts savstarpējās saprašanās memorands starp četriem Ziemeļvalstu – Somijas, Zviedrijas, Norvēģijas un Dānijas – centriem un trim Baltijas valstīm.

12/12/2025

✨The “TRANSFER” project team participated in the Photonics and Electromagnetics Research Symposium (PIERS) 2025 in Chiba, Japan, and successfully presented two scientific papers addressing methodologies for testing and enhancing the stability and usability of Open 5G networks in line with the project’s core objectives -
“Implementation of Cognitive Radio on an SDR platform within a Private 5G Open Radio Access Network” and “Hybrid Convolutional and Recurrent Neural Networks for Nonlinear Distortion Compensation in Fiber-Optic Communication Lines”.

👉Photonics and Electromagnetics Research Symposium, also known as Progress in Electromagnetics Research Symposium, provides an international forum for reporting progress and recent advances in the modern development of electromagnetics, photonics and exciting applications. PIERS has become a major symposium in the area related to electromagnetics. PIERS Journals are a family of journals supported by the proceeds of PIERS meetings.

👉The “TRANSFER” project team continues their work on developing an interconnection device for seamless roaming between different digital communication network technologies. The research on the required modules has been completed, and the main activity now is the proof-of-concept device — testing the switching speeds between Wi-Fi and the private 5G network.

📄 This work has been supported by the European Regional Development Fund. Project: Multipath Roaming Solution for Open RAN (TRANSFER), No. 1.1.1.3/1/24/A/018.

12/12/2025

RTU Datorzinātnes, informācijas tehnoloģijas un enerģētikas fakultātes Fotonikas, elektronikas un elektronisko sakaru institūta pētniece, doktorante Darja Čirjuļina iegūst prestižu fotonikas studentu ...