Dresden 2011 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 52: Precision Measurement and Metrology 3

Q 52.4: Vortrag

Donnerstag, 17. März 2011, 15:15–15:30, HÜL 386

Michelson-interferometer with 3-port-grating-coupled arm-resonators — •Maximilian Wimmer, Michael Britzger, Daniel Friedrich, Björn Hemb, Karsten Danzmann, and Roman Schnabel — Albert-Einstein-Institut Hannover, Max- Planck-Institut für Gravitationsphysik und Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany

In high precision interferometers such as gravitational wave detectors the maximization of circulating light power is one way to increase the signal to noise ratio. Stronger light fields will also increase thermooptic effects in the transmissive beamsplitters and cavity-couplers that are used in these interferometers. The direct approach to avoid these effects is the change to all-reflective optics. We present the realization of an Interferometer with diffractively coupled arm-resonators using so-called 3-port diffraction gratings and the first results of the signal response measurements.