Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 19: Quantum Optics III
Q 19.5: Vortrag
Dienstag, 7. März 2017, 12:00–12:15, P 5
Hong-Ou-Mandel interference in an integrated quantum optical waveguide device — •Polina Sharapova, Kai Hong Luo, Harald Herrmann, Matthias Reichelt, Christine Silberhorn, and Torsten Meier — Physics department and Center of Optoelectronics and Photonics Paderborn (CeOPP), University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany;
The Hong-Ou-Mandel (HOM) interference is one of the basic and important tools of modern quantum optics. A bulk HOM interferometer includes several quite large optical elements which makes it difficult to use and combine them in compact quantum computational circuits. Technologies that allow to realise quantum optical functionalities in small integrated systems are much more promising in this respect.
In this work we present a theoretical description of a HOM interferometer that can be realised in an integrated quantum optical chip based on, e.g.,
LiNbO3 waveguide technology.
The entire interferometer including several optical elements and the generation of photon pairs via
parametric down conversion can be incorporated on a single chip using available fabrication techniques.
Our theoretical approach is based on unitary transformations which describe the action of the optical elements
and can easily be generalized to more complicated systems.