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arXiv · 0707.0184

Squeezed-field injection for gravitational wave interferometers

Henning Vahlbruch·Simon Chelkowski·Boris Hage·Alexander Franzen·Karsten Danzmann·Roman Schnabel
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Abstract

In a recent table-top experiment we demonstrated the compatibility of three advanced interferometer techniques for gravitational wave detection, namely power-recycling, detuned signal-recycling and squeezed field injection. The interferometer's signal to noise ratio was improved by up to 2.8 dB beyond the coherent state's shot-noise. This value was mainly limited by optical losses on the squeezed field. We present a detailed analysis of the optical losses of in our experiment and provide an estimation of the possible nonclassical performance of a future squeezed field enhanced GEO600 detector.

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Henning Vahlbruch, Simon Chelkowski, Boris Hage, Alexander Franzen, Karsten Danzmann, Roman Schnabel. 2007-07-02. Squeezed-field injection for gravitational wave interferometers. https://doi.org/10.1088/0264-9381/23/8/s32

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