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Dual recycling for GEO600

A. Freise
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Abstract

Dual recycling is the combination of signal recycling and power recycling; both optical techniques improve the shot-noise-limited sensitivity of interferometric gravitational-wave detectors. In addition, signal recycling can reduce the loss of light power due to imperfect interference and allows, in principle, to beat the standard quantum limit. The interferometric gravitational-wave detector GEO600 is the first detector to use signal recycling. We have recently equipped the detector with a signal-recycling mirror with a transmittance of 1%. In this paper, we present details of the detector commissioning and the first locks of the dual- recycled interferometer.

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A. Freise. 2003-06-12. Dual recycling for GEO600. https://arxiv.org/abs/gr-qc/0306053

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