Erlangen 2018 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 39: Poster: Quantum Optics and Photonics II

Q 39.14: Poster

Dienstag, 6. März 2018, 16:15–18:15, Zelt Ost

Towards practical integrated Quantum Pulse Gate devices — •Jano Gil López, Matteo Santandrea, Nicola Montaut, John Donohue, Vahid Ansari, Markus Allgaier, Harald Herrmann, Raimund Ricken, and Christine Silberhorn — Universit\"{a}t Paderborn, Integrierte Quantenoptik, Warburger Str. 100, D-33098

Nonlinear wave-mixing allows for frequency conversion, bandwidth manipulation and temporal-mode selective operations such as Quantum Pulse Gates (QPGs). Such processes have many applications in photonic networks, both classical and quantum. These processes can be engineered in integrated optical devices in nonlinear materials to increase the efficiency, ease the alignment and reduce the footprint.

The conditions needed for single-mode waveguiding vary drastically between different wavelengths. To support all the fields interacting simultaneously in wave-mixing processes, significant engineering is required. Waveguide inhomogeneities and fabrication defects, which degrade the process fidelity, must also be surpassed. To overcome these issues and increase the efficiencies we investigate the use of on-chip tapers, bendings and dichroic couplers in Lithium Niobate waveguides. The goal is to produce efficient integrated wave-mixing devices (with a focus on QPGs), reducing the footprint and the need for bulk optics while allowing for complex interactions and processes.