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Q: Fachverband Quantenoptik und Photonik

Q 16: Quantum Optics III

Q 16.3: Vortrag

Dienstag, 24. März 2015, 11:30–11:45, C/HSO

A fully integrated single-pass squeezer — Michael Stefszky and •Christine Silberhorn — Universität Paderborn

We will present current results from a recently developed fully integrated single-pass squeezer. This device performs the second-harmonic generation, local oscillator shaping, and the squeezing on a single chip in a double-pass configuration. Photorefractive effects are minimised by producing the second harmonic field in the same device, ensuring optimal mode overlap between this field and the fundamental. The rejected fundamental light that exits the waveguide is in the same spatial mode as the squeezed light and is used as the local oscillator in a homodyne setup, resulting in high visibilities. The device has low losses (0.03dB/cm), high nonlinearity (up to 14%/Wcm^2) and is as long as most current technologies allow for (83mm).