Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 19: Quantum Optics III

Q 19.6: Talk

Tuesday, March 7, 2017, 12:15–12:30, P 5

Tailoring spatial light modes for sum-frequency generation in Lithium-Niobate waveguides — •Jano Gil López, Vahid Ansari, Markus Allgaier, Harald Herrmann, Raimund Ricken, and Christine Silberhorn — Universität Paderborn, Integrierte Quantenoptik, Warburger Str. 100, D-33098.

Nonlinear optical processes in integrated quantum circuits has shown promising applications in manipulation of quantum states such as spectral bandwidth compression and changing the colour of single photons for interfacing different optical systems. Since it is impossible to design waveguides with single mode characteristics at different wavelengths, a special care has to be taken to tailor the spatial modes of the optical fields inside the waveguide structures.

Here we investigate the tailoring of spatial modes for sum-frequency generation in Lithium-Niobate waveguides for wavelengths between 500 nm to 1550 nm. We present spatially single-mode integrated waveguide circuits for such an optical nonlinear processes.