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Q: Fachverband Quantenoptik und Photonik
Q 64: Solid State Quantum Optics II
Q 64.1: Talk
Friday, March 15, 2024, 11:00–11:15, HS 3219
Chip-fibre interface for integrated quantum networks — •Tim Engling1,3, Jonas Zatsch1,3, Jeldrik Huster1,3, Simon Abdani1,3, Christian Schweikert2, and Stefanie Barz1,3 — 1Institute for Functional Matter and Quantum Technologies, University of Stuttgart, 70569 Stuttgart, Germany — 2Institute of Electrical and Optical Communications Engineering, University of Stuttgart, 70569 Stuttgart, Germany — 3Center for Integrated Quantum Science and Technology (IQST)
Integrated photonics provides a compact and robust way to process quantum information, and thus, offers a platform for scaling up quantum technologies. We introduce a silicon-on-insulator chip, which offers control of quantum states on the chip, and also, allows converting different degrees of freedom. The manipulation of path is achieved through the use of integrated beam splitters and phase shifters. Furthermore, switching between encoding in path and polarisation, and vice versa, is facilitated by 2D grating couplers. We demonstrate the chip’s functionality by utilizing it for the generation, analysis, and conversion of quantum states of light. Our approach enables the connection of multiple integrated photonic chips, laying the foundation for implementing networked protocols in quantum communication and quantum computing.
Keywords: Integrated Photonics; Quantum Information; Quantum Optics; Quantum Technologies; Photonic Chip