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/Next-Generation III-V Modulators for Energy-Efficient Optical I/O

Next-Generation III-V Modulators for Energy-Efficient Optical I/O

PhD - Leuven | Just now

Shape the future of energy-efficient optical I/O by advancing III-V optical modulators through device physics, modeling, fabrication, integration, and characterization.
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The rapid growth of artificial intelligence and high-performance computing is driving an increasing demand for high-bandwidth and energy-efficient data communication. Optical I/O is emerging as a key technology to overcome the power and bandwidth limitations of conventional electrical interconnects, creating a strong need for compact, fast and energy-efficient optical modulators.

This PhD will explore next-generation optical modulation concepts based on III-V materials integrated with a 300 mm silicon photonics platform. Compared with existing III-V modulators, this work will address the challenge of translating the strong material response of III-V semiconductors and their heterojunction structure into devices that jointly deliver high modulation efficiency, low optical loss and high-speed operation on silicon photonics. The research will investigate how material properties, device physics and optical design can be jointly engineered to improve modulation efficiency while maintaining low optical loss and high-speed operation. Particular attention will be given to understanding the physical mechanisms governing the electro-optic response and translating these insights into optimized device concepts.

 

The work will combine semiconductor and photonic device modeling with experimental characterization and device development. The candidate will establish physics-based models, explore the relevant design space, identify the key performance trade-offs, and experimentally evaluate promising device concepts. The research will be carried out in close interaction with imec’s advanced photonics research environment and academic partners. The ultimate goal is to develop new insights and design strategies for highly efficient III-V optical modulators that can contribute to future generations of energy-efficient optical I/O and integrated photonic systems.



 


 

Required background: Master’s degree in Electrical Engineering, Photonics, Applied Physics, Materials Science, or related field. Background in semiconductor physics, optoelectronics or integrated photonics; modeling or characterization experience is an asset.

Type of work: 50% modeling and simulation, 20% experimental characterization, 20% device design and data analysis, 10% literature study

Supervisor: Dries Van Thourhout (UGent)

Daily advisor: Mengxun Bai

The reference code for this position is 2027-046. Mention this reference code in your application.

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