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arXiv 0912.4749gr-qc
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显示低频位移噪声降低的引力波探测器的无位移噪声干涉测量方案的实验验证

Experimental demonstration of a Displacement noise Free Interferometry scheme for gravitational wave detectors showing displacement noise reduction at low frequencies

Antonio Perreca, Simon Chelkowski, Stefan Hild, Andreas Freise

摘要:

本文报道了在引力波探测波段进行部分位移无噪声激光干涉测量的实验演示。所使用的失谐法布里-珀罗腔允许将模拟的引力波信号与腔输入镜上的位移噪声隔离。通过适当地组合来自腔的反射和透射信号,实现了位移噪声的降低。我们的研究结果代表了最近提出的无位移噪声激光干涉测量方案的第一次实验演示。总体而言,我们表明,在10 Hz至10 kHz的频率范围内,位移噪声对引力波信号的抑制比得到了改善,典型因子为60。

英文摘要:

This paper reports an experimental demonstration of partial displacement noise free laser interferometry in the gravitational wave detection band. The used detuned Fabry-Perot cavity allows the isolation of the mimicked gravitational wave signal from the displacement noise on the cavities input mirror. By properly combining the reflected and transmitted signals from the cavity a reduction of the displacement noise was achieved. Our results represent the first experimental demonstration of this recently proposed displacement noise free laser interferometry scheme. Overall we show that the rejection ratio of the displacement noise to the gravitational wave signal was improved in the frequency range of 10 Hz to 10 kHz with a typical factor of 60.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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