Integrated photonics are becoming a scalable and flexible solution for quantum applications. On one hand, Silicon Nitride (SiN) photonics is gaining more and more attention due to its transparency window from visible (Ion trapping) to SWIR (short wavelength infrared), high power handling, and most importantly, due to its extremely low propagation loss. On the other hand, Si photonics, due to its compactness, and active components like detectors and modulators are also penetrating into the quantum world. PIC based solutions are the ideal platform for applications in the quantum domain, such as quantum key distribution (QKD), quantum computing, and quantum sensing. Yet the development of SiN photonic ICs is still far from a routine workflow. As an R&D hub, imec is one of the pioneers in silicon nitride integrated photonics. In this talk we will explore how to overcome the hurdles on the road to dedicated photonic chip design, manufacturing, and prototyping.
Christian Haffner was appointed to imec’s new tenure track program in March 2021, where he is building a research team to explore the limits of electro-optics. Before his appointment, he performed postdoctoral research exploring the limits of electro-optics at the National Institute for Standards and Technology (NIST, USA) and ETH Zurich, Switzerland. In 2019, he was awarded a Branco-Weiss fellowship to pursue independent research on single-photon electro-optic conversion. He received his Ph.D. degree from ETH Zurich in 2018, for which he was awarded the ETH Medal and Hans-Eggenberger Prize. During his Ph.D., he focused on innovating electro-optic plasmonic devices for high-speed communications in the group of Juerg Leuthold. He obtained his B.Sc. and M.Sc. degree in electrical engineering from the Karlsruhe Institute of Technology (Germany) in 2012 and 2013, respectively. He was ranked first in his masterbatch. During his study, he was a scholarship holder of the German National Academic Foundation, which supports the top 0.5% of the German student population. His research has been published in high-impact journals, including Nature, Nature Photonics, Science, and Nano Letters. News outlets such as the OSA’s Optics and Photonics News, and the IEEE Spectrum have featured his publications.