Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 57: Poster: Quantum Optics and Photonics III

Q 57.21: Poster

Thursday, March 14, 2019, 16:15–18:15, S Fobau Physik

Squeezed-Shot-Noise Prototype of the Einstein-Telescope — •Justin Nico Hohmann, Sebastian Steinlechner, and Roman Schnabel — Institut für Laserphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

The design study for the next generation gravitational-wave detector, the Einstein Telescope, suggests using light powers of several megawatts and 10dB-squeezed vacuum states of light. So far, no experimental demonstration exists, that combines high light powers and high squeeze factors. At Hamburg University, we set up a squeezed-shot-noise prototype of the Einstein-Telescope at a scale of 1:10,000. The arm cavity length is about one meter with final optical power of 1 MW, in combination with 10 dB shot-noise squeezing. Our prototype is a table-top device, with planned high measurement sensitivity for arm length changes at ultra-sonic and radio frequencies.