PhD in Cryogenic Silicon-Photonics-Based Optical Interconnects for Quantum Computer Eindhoven University of Technology in Netherlands

This PhD position at Eindhoven University of Technology focuses on the development of cryogenic silicon-photonics-based optical interconnects for quantum computers. Quantum computers require high-bandwidth classical data channels to control and read out qubits, but traditional copper cables are unsuitable for cryogenic environments. Leveraging integrated photonics, the project aims to realize silicon-photonics-based transceivers that operate at temperatures around 4 K, collaborating closely with NXP on their ion-based quantum computer platform.

As a PhD student, you will design and develop novel high-speed photodetectors, waveguides, and modulators using NXP’s mature semiconductor processes, currently applied to single-photon avalanche photodiodes (SPADs) and electronics. The project employs a zero-change approach, integrating new photonic components into the existing process design kit (PDK). You will work with experts in integrated photonics and electronics, establishing a new technology platform for cryogenic applications. Key scientific challenges include identifying optimal transceiver architectures, developing novel photonic components, and ensuring reliable operation at cryogenic temperatures.

The research involves simulations with commercial and in-house tools, chip design in a mature PDK, and experimental testing and characterization in state-of-the-art laboratory facilities. You will join the Photonic Integration group (PhI) within the Department of Electrical Engineering, part of the newly established Casimir Institute at TU/e. The group comprises about 70 members, including 25 PhD students, and is embedded in the Brainport ecosystem, offering close collaboration with academic and industrial partners.

Applicants should have a Master’s degree in Physics, Electrical Engineering, or a related field, with affinity for photonic or electronic devices and circuits. Experience in optics, photonics, semiconductor devices, device modelling, and chip design is advantageous. Experimental skills in optical, photonics, or electronics labs are preferred. Candidates must be comfortable working in interdisciplinary teams and possess fluent English (C1 level).

The position offers full-time employment for four years, with an intermediate assessment after nine months. Salary is in accordance with the Collective Labour Agreement for Dutch Universities (scale P: €3,059–€3,881/month), plus a year-end bonus (8.3%), annual vacation pay (8%), pension scheme, paid pregnancy and maternity leave, partially paid parental leave, commuting and home working allowances, and a tax compensation scheme (30% facility) for international candidates. TU/e provides high-quality training programs, technical infrastructure, on-campus childcare, sports facilities, and support for international staff.

To apply, submit a cover letter, CV with publications, and contact information for three references via the online application link. Only complete applications will be considered. The vacancy remains open until filled, with a deadline of April 3, 2026. For further information, contact Prof. Martijn Heck ([email protected]) or HR Advisor Kevin Caris ([email protected]).