This CWTe colloquium will feature the following two speakers and presentations:

  • Nazanin Farid (TU/e, Electromagnetics Group) — Towards Millimetre-Wave Hybrid Reverberation Chambers
  • Kaan Sunnetcioglu (TU/e, Photonic Integration Group) — High-speed electro-optic phase modulators on InP membranes for telecom and datacom applications

    Abstracts and presenters’ biographies are available below.
    We look forward to welcoming you to our next colloquium.

Title: Towards Millimetre-Wave Hybrid Reverberation Chambers

Abstract: Future 6G devices will use compact, highly integrated antenna systems that must be tested over-the-air rather than via cable connections. The challenge lies in reproducing the diverse conditions these devices encounter, ranging from a clear line-of-sight connection to complex environments where signals arrive from multiple directions.
Hybrid reverberation chambers offer a promising solution by creating controllable conditions that bridge these two extremes. This presentation examines how a millimetre-wave reverberation chamber can be transformed into a hybrid test environment. It discusses the associated design objectives, introduces complementary metrics for chamber characterisation, and presents a unified method for estimating channel parameters and comparing laboratory measurements with real-world channel models. The results contribute to more flexible, realistic and efficient testing of future wireless technologies.

Biography: Nazanin Farid is completing a dual PhD at Eindhoven University of Technology and Chalmers University of Technology as part of the EU-funded MyWave project. Her research focuses on developing over-the-air measurement and characterisation methodologies for antenna systems using reverberation chambers. She was a visiting researcher at Ericsson Research in Gothenburg from 2022 to 2023.

Title: High-speed electro-optic phase modulators on an InP membrane for telecoms and data communications applications.

Abstract: Growth in telecoms traffic and the rapid scaling of AI computing infrastructure are driving optical transceivers towards ever-higher symbol rates, and with them, the electro-optic modulator towards ever-higher bandwidth. Indium phosphide is the only material system in which a high-speed modulator can be monolithically integrated with its own on-chip laser and amplifier.
The current state of InP-based electro-optic modulators is reviewed and placed in context relative to competing platforms such as silicon photonics and thin-film lithium niobate. Recent work on InP membrane electro-optic phase modulators is then presented, covering device design, fabrication and high-frequency characterisation, along with possible avenues for improvement in future-generation devices.

Biography: Kaan Sunnetcioglu is a PhD candidate in the Photonic Integration (PhI) group at Eindhoven University of Technology (TU/e). His research focuses on indium phosphide (InP)-based high-speed electro-optic phase modulators (EOPMs) for data communication and telecommunications applications.

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