Realistic polarizing Sagnac topology with DC readout for the Einstein Telescope

Realistic polarizing Sagnac topology with DC readout for the Einstein Telescope
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用于爱因斯坦望远镜的具有直流读数的真实偏振萨尼亚克拓扑

DOI:
10.1103/physrevd.87.096008
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发表时间:
2013
期刊:
影响因子:
5
通讯作者:
Wang M
Wang M
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wang M

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爱因斯坦望远镜(Einstein Telescope,ET)是一个未来的引力波探测器。它的设计是原创的,使用三个探测器的三角形方向和木琴配置,将每个探测器分成一个高频和一个低频系统。在其他方面,目前的设计保留了双回收迈克尔逊干涉仪典型的电流探测器,如先进的LIGO。在本文中,我们探讨了用Sagnac干涉仪取代ET探测器的低频部分的可行性。我们表明,Sagnac干涉仪,使用现实的光学参数的基础上的ET设计,可以提供类似的水平的辐射压力噪声抑制,而不需要一个信号回收镜和广泛的过滤腔。我们认为一个现实的,电力回收萨尼亚克,使用线性臂腔和偏振光学的实际问题。特别是,我们调查的非完美的偏振光学的影响,并提出了一种新的方法产生的本地振荡器字段类似的DC读出计划的电流探测器。
The Einstein Telescope (ET) is a proposed future gravitational wave detector. Its design is original, using a triangular orientation of three detectors and a xylophone configuration, splitting each detector into one high-frequency and one low-frequency system. In other aspects the current design retains the dual-recycled Michelson interferometer typical of current detectors, such as Advanced LIGO. In this paper, we investigate the feasibility of replacing the low-frequency part of the ET detectors with a Sagnac interferometer. We show that a Sagnac interferometer, using realistic optical parameters based on the ET design, could provide a similar level of radiation pressure noise suppression without the need for a signal recycling mirror and the extensive filter cavities. We consider the practical issues of a realistic, power-recycled Sagnac, using linear arm cavities and polarizing optics. In particular, we investigate the effects of nonperfect polarizing optics and propose a new method for the generation of a local oscillator field similar to the DC readout scheme of current detectors.
探索光机械设备中的宏观量子力学
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者:
H. Miao
通讯作者: H. Miao