Professor Konrad Banaszek, QOPT Scientific Advisor and Co-founder, visited the laboratory of Professor Pei-Wen Li (https://iee.nycu.edu.tw/en/teacher/p1.php?num=95&page=1) at the National Yang Ming Chiao Tung University (NYCU) in Taiwan as part of the international research project “Secure Quantum Optical Communication with Low-Noise Detectors (SEQOLOND)”, led by Quantum Optical Technologies sp. z o.o. (QOPT) and funded under the 11th Polish-Taiwanese / Taiwanese-Polish Joint Research Call of NCBR and NSTC. During the visit, the partners discussed the current progress of the project and reviewed plans for next years.
SEQOLOND project
SEQOLOND brings together QOPT, Warsaw University of Technology (PW), Nicolaus Copernicus University in Toruń (UMK), National Yang Ming Chiao Tung University (NYCU) and NARLabs in Taiwan to develop advanced quantum optical encryption technology. The project focuses on Optical Key Distribution (OKD), a physical-layer security approach designed to be fully resistant to a broad class of network security threats while remaining compatible with existing optical communication infrastructure. The main technical objective of SEQOLOND is to implement the OKD protocol using innovative low-noise photodetectors developed at NYCU, combined with high-performance secret key agreement methods developed by the Polish partners. This cooperation aims to enable high-rate secure communications for both fiber optic and satellite links.
Wizyta robocza na Taiwanie w ramach projektu SEQOLOND
Profesor Konrad Banaszek, współzałożyciel QOPT, odwiedził laboratorium profesor Pei Wen Li (https://iee.nycu.edu.tw/en/teacher/p1.php?num=95&page=1) na National Yang Ming Chiao Tung University (NYCU) na Tajwanie w ramach międzynarodowego projektu badawczego „Secure Quantum Optical Communication with Low-Noise Detectors (SEQOLOND)”, realizowanego pod kierownictwem Quantum Optical Technologies sp. z o.o. (QOPT) oraz finansowanego w ramach 11. polsko tajwańskiego / tajwańsko polskiego wspólnego konkursu badawczego NCBR i NSTC. Podczas wizyty partnerzy omówili aktualne postępy prac w projekcie oraz przeanalizowali plany na kolejne lata.
O projekcie SEQOLOND
Projekt SEQOLOND łączy QOPT, Politechnikę Warszawską (PW), Uniwersytet Mikołaja Kopernika w Toruniu (UMK), National Yang Ming Chiao Tung University (NYCU) oraz tajwańskie NARLabs w celu opracowania zaawansowanej technologii kwantowego szyfrowania optycznego. Projekt koncentruje się na Optical Key Distribution (OKD) – zapewnienie bezpieczeństwa na poziomie warstwy fizycznej, zaprojektowanym tak, aby było w pełni odporne na szeroką klasę zagrożeń bezpieczeństwa sieci, a jednocześnie pozostawało kompatybilne z istniejącą infrastrukturą łączności optycznej. Głównym celem technicznym SEQOLOND jest implementacja protokołu OKD z wykorzystaniem innowacyjnych, niskoszumnych fotodetektorów opracowanych na NYCU, w połączeniu z wysokowydajnymi metodami uzgadniania klucza szyfrującego rozwijanymi przez partnerów z Polski. Współpraca ta ma umożliwić bezpieczną transmisję o wysokiej przepływności zarówno w łączach światłowodowych, jak i satelitarnych.
Quantum Optical Technologies sp. z o.o. (QOPT) has commenced collaboration with Fiberhost S.A. on securing data transmission in fiber-optic access networks using the innovative Optical Key Distribution (OKD) technology developed by QOPT. Joint activities will include a technical analysis of OKD protocols in multiuser network scenarios. “Cooperation with Fiberhost S.A. is the first step towards the deployment of our OKD technology in passive optical networks, which offers a number of advantages compared to alternative solutions that are currently explored” said Professor Konrad Banaszek, QOPT Co-founder and Scientific Advisor.
Fiberhost S.A. (https://fiberhost.com/) is a leader in the construction and management of modern, open FTTH (Fiber-To-The-Home) fiber-optic infrastructure in Poland. The company provides wholesale services to local and nationwide telecommunications providers. It operates open fiber-optic networks with a total length of over 50.000 km, covering more than 1.3 million households.
Quantum Optical Technologies sp. z o.o. (https://qopt.tech/) creates its own proprietary solutions, and delivers custom solutions tailored to clients’ needs. It applies quantum optical technologies to telecom, space, cybersecurity and other modern engineering challenges, delivering advanced solutions for business and government clients.
Professor Konrad Banaszek, QOPT Scientific Advisor and Co-Founder delivered a lecture “Quantum Pulse Gating for Noise Reduction in Classical and Quantum Space Optical Communications” at the 7th Quantum Technology Conference organized by the Directorate of Technology, Engineering and Quality of the European Space Agency (ESA) and hosted by the Foundation for Research and Technology – Hellas in Crete, Greece, on 07-09 October 2025. The lecture presented results of the ESA-funded activity carried out by QOPT in collaboration with Paderborn University, outlining the pathway towards further technology development.
More information:
https://nikal.eventsair.com/7th-quantum-technology-conference/
QOPT staff participated in FOAN2025 – the 13th International Workshop on Fiber Optics in Access Networks which took place on 9-11 September 2025 in Szczecin, Poland. QOPT was also delighted to support FOAN2025 as one of the event sponsors. The meeting was a great opportunity to highlight the potential of Optical Key Distribution (OKD) technology developed at QOPT for practical deployment in access networks. This application area is particularly promising, as alternatives such quantum key distribution would incur significantly higher hardware overheads. The conference programme included a talk “QTTH – Quantum to the Home?” presented by QOPT employee Mr Mateusz Kucharczyk, who discussed OKD in comparison to other methods for key distribution.
More information about the conference is available at https://foan.info/
We are proud to announce that our founder, prof. Konrad Banaszek, participated as a speaker at the INOW – “international Nano-Optoelectronics Workshop 2025” – (https://inow2025.pwr.edu.pl/)
During this event, he presented our cutting-edge QRND and OKD technologies, highlighting our commitment to simplicity in qunatum innovations.
We would like to extend our heartfelt thanks to the organizers for hosting such a well-structured and inspiring event that fosters collaboration and technology transfer. We deeply appreciate the opportunity to share our work and look forward to continuing these valuable exchanges and advancing the frontier of quantum optical technologies together.
Professor Konrad Banaszek took part in the 8th Polish Optical Conference in Rzeszów, where he delivered a plenary lecture “Fast, affordable, secure: optical distribution of a cryptographic key,” in which he presented QOPT’s OKD technology.
More information about the conference is available at: https://www.konferencja-optyczna.pl/.
