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Figure 4: Schematic representation of an integrated atomic vapor cell with gradient-index surface coupling (GISC) to optical fibers.
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quantum domain by increasing the manufacturing and prototyping

Biographies
Wojciech Lewoczko-Adamczyk is a Research Fellow at Fraunhofer Institute for Reliability and
Microintegration (IZM), Berlin, Germany. He studied Physics at the Jagiellonian U. of Cracow, Poland,
and received a Doctoral degree from Humboldt U. in Berlin. After his post-doctoral fellowship at the U.
of Amsterdam, he held a research position at the Ferdinand-Braun-Institute, Berlin, Germany. He joined
Fraunhofer IZM in 2016 as a scientist focused on optical interconnections and photonic packaging. Email
Wojciech.Lewoczko-Adamczyk@izm.fraunhofer.de

Henning Schröder is Group Manager of the Optical Interconnection Technologies Group (Dept. System Integration &
Interconnection Technologies), at Fraunhofer Institute for Reliability and Microintegration (IZM), Berlin. He received his MSc
in Applied Physics from the U. of Magdeburg, Germany, and his PhD at the Technical U. of Berlin. His main fields are R&D
of optical interconnection technologies for printed circuit boards and photonic modules. He holds many patents in photonic
packaging technologies and is a member of the German Physical Society, the German Society of Applied Optics, and the
European Optical Society.

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