Postdoc in Generation of Quantum States in Silicon Core Optical Fibers - DTU Electro

Quantum information sciences hold great promise as a key to address some of the societal challenges that we are currently facing e.g. how can we improve the resolution and sensitity of imaging systems to better understand bio-chemistry processes or how can we ensure safe communication that cannot be hampered by any undesired third party. 

If you are interested in contributing to research within generation and processing of quantum states with potential applications in the above mentioned fields of research, we offer a postdoc position within processing and generation of quantum states in silicon core optical fibers. These fibers are interesting for quantum information sciences since they are naturally multimode and also have a very narrow Raman spectrum.

Responsibilities and qualifications
In this position, you will be responsible for advancing in-coupling to these fibers as well as characterizing fundamental properties such as mode stability and generation of photon pairs using nonlinear processes of the fiber. You will be working in a team and specifically close together with the PhD students.

As a formal qualification, you must hold a PhD degree (or equivalent). In addition, candidates with prior knowledge, and experience in working with nonlinear fiber optics as well as generation and characterization of quantum states and multimodes waveguides will be preferred.

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility. 

Salary and terms of employment
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union.

The period of employment is 3 years, and the position is part of a research project funded by the Independent research fund Denmark.

You can read more about career paths at DTU here.

Further information 
Further information may be obtained from Prof Karsten Rottwitt, karo@dtu.dk.

You can read more about DTU Electro at DTU Electro.

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.

Application procedure 
Your complete online application must be submitted no later than 29 April 2026 (23:59 Danish time). Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply now", fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

• Application (cover letter)
• CV
• Academic Diplomas (MSc/PhD – in English)
• List of publications 

Applications received after the deadline will not be considered.

All interested candidates irrespective of age, gender, disability, race, religion or ethnic background are encouraged to apply. As DTU works with research in critical technology, which is subject to special rules for security and export control, open-source background checks may be conducted on qualified candidates for the position.

DTU Electro 
DTU Electro employs more than 300 skilled researchers with competencies in electrical and photonics engineering. As a department we strive towards creating sustainable energy and a greener internet, as well as strengthening cyber security and health technology. Working with the industry and public organizations is one of our top priorities to find and implement new solutions to our society. We aim to offer education, research, and innovation of the highest standard, and our focus on application-oriented research enables us to work across many engineering disciplines and research areas, such as IT and the medical and health sciences. We have a close collaboration with researchers from all over the world, just as we collaborate with industry and public authorities about the dissemination of solutions based on electrical and photonics engineering as their key enabling technologies.

DTU – For the benefit of society since 1829
DTU is one of Europe's leading elite technical universities. Through research and education at an international top level, we create solutions to the major societal challenges of our time and help secure Europe's global leadership in sustainable technological development. Since Hans Christian Ørsted founded DTU almost 200 years ago, our mission has remained the same: We develop and create value through the natural and technical sciences for the benefit of society. DTU has 13,800 students, 1,600 PhD students, and 6,500 employees. We work in an international environment and have an inclusive, stimulating, and informal work culture. DTU has campuses in all parts of Denmark and in Greenland and collaborates with the best universities around the world.