Projects per year
Personal profile
Research profile
Xaveer Leijtens (1962) studied physics at the University of Amsterdam. He received his master degree with honors in 1988 and his Ph.D. degree in 1993 on research in the field of high energy physics.
He joined the Photonic Integrated Circuits group at the Delft University of Technology, pioneering the field of integrated photonics. Since 2000 he is with the Eindhoven University of Technology, where he is associate professor in the Photonic Integration group. His interests focus on photonic IC design, generic photonic integration and measurement automation. As a key player within the European InP platform, JePPIX.eu, he provided PIC design traing to several hundreds of photonic professionals worldwide.
Dr. Leijtens is core developer of the Nazca Photonic IC design software, nazca-design.org, and active in setting open standards for electronic-photonic design automation, openEPDA.org. He is co-founder of Photon Bridge B.V., a deep-tech company building hybrid photonic ICs combining the best materials for advanced photonics appications. He (co-)authored over 400 scientific papers and conference contributions and 3 book chapters.
External positions
Co-founder, director IC design at Photon Bridge B.V.
1 Jan 2022 → 1 Jan 2028
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 7 Affordable and Clean Energy
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Projects
- 1 Finished
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Indium-Phosphide Pilot Line for up-scaled, low-barrier, self-sustained, PIC ecosystem
de Vries, T. (Project member), Williams, K. A. (Project Manager), Leijtens, X. J. M. (Project member), Yao, W. (Project member), Pustakhod, D. (Project member), Trajkovic, M. (Project member), Panina, E. (Project member), Trajkovic, M. (Project member), Visscher-van Gestel, I. (Project member), Heck, M. J. R. (Project member), Langendijk, E. (Project member) & Hasenson, B. (Project member)
1/01/19 → 31/12/23
Project: Research direct
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Compact Model for an Electro-Optic Phase Modulator
Bas, B. J. A., Santos, R. M. & Leijtens, X. J. M., 2026, Proceedings of the 29th Annual Symposium of the IEEE Photonics Benelux Chapter. 4 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic
Open AccessFile19 Downloads (Pure) -
Enhanced Extinction Ratio in QKD Transmitters Using On-Chip Saturable Absorbers
Konig, J. (Corresponding author), Çirkinoğlu, O., Ghosh, R. R., Heck, M. J. R. & Leijtens, X. J. M., 15 May 2026, In: IEEE Photonics Technology Letters. 38, 10, p. 659-662 4 p.Research output: Contribution to journal › Article › Academic › peer-review
Open AccessFile61 Downloads (Pure) -
Linewidth Analysis of Monolithically Integrated DBR Lasers with Different Intracavity Passive Ring Filters
Konig, J. (Corresponding author), Jones, R., Leijtens, X. J. M. & Bente, E. A. J. M., Aug 2026, Proceedings of the 26th European Conference on Integrated Optics: ECIO 2025, June 10–12, Cardiff University. Smowton, P. & Krauss, T. (eds.). Cham: Springer, p. 61-67 7 p. (Springer Proceedings in Physics (SPPHY); vol. 440).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review
Open AccessFile86 Downloads (Pure) -
Measurements of the Effects of Current Noise on Laser Linewidth in Monolithic Indium Phosphide
Krielaart, T. A. (Corresponding author), Konig, J., Leijtens, X. J. M. & Heck, M. J. R., 2026, Proceedings of the IEEE Photonics Benelux Chapter Annual Symposium 2025. 4 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic
File50 Downloads (Pure) -
Multimode Interference Coupler Integrating Dual 50/50 Splitters and Waveguide Crossing
Konig, J., Jansen, R. H. M., Fumagalli, L. & Leijtens, X. J. M., 2026, IEEE Photonics Benelux Chapter Annual Symposium 2025: Syposium proceedings. 4 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic
Open AccessFile30 Downloads (Pure)