| Photo-thermal Shot Noise in End Mirrors of LIGO due to Correlation of Power Fluctuation |
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| 作者姓名： | 吴世臣 万珍珠 李寰 刘中柱 |
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| 作者单位： | [1]Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 [2]Department of Physics, School of Mathematics and Physics, China University of Geosciences, Wuhan 430074 |
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| 基金项目： | Supported by the National Basic Research Programme of China under Grant No 2003CB716300, and the National Natural Science Foundation of China under Grant No 10121503. |
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| 摘 要： | The effect of input power fluctuation on photo-thermal shot noise in the end mirrors of a laser interferometer gravitational-wave observatory （LIGO） is analysed according to the statistical optics, which is a supplement of Braginsky＇s research. The laser light folding in LIGO increases a correlation of input power fluctuation in the photo-thermal shot noise. This part of noise has spectral density proportional to -2 in low frequency bands, and -4 in high frequency bands. It is not a white noise and may affect the processing about data of interferometers. To obtain an advanced LIGO, photo-thermal shot noise in end mirrors due to correlation of input power fluctuation is up to Braginsky＇s photo-thermal noise in the frequency range 1-100 Hz.
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| 关 键 词： | 光-热散粒噪声 输入功率起伏 相关性 LIGO端镜 引力波 激光干涉仪 |
| 收稿时间： | 2006-08-03 |
| 修稿时间： | 2006-08-03 |
Photo-thermal Shot Noise in End Mirrors of LIGO due to Correlation of Power Fluctuation |
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| WU Shi-Chen,WAN Zhen-Zhu,LI Huan&sup,LIU Zhong-Zhu.Photo-thermal Shot Noise in End Mirrors of LIGO due to Correlation of Power Fluctuation[J].Chinese Physics Letters,2006,23(12):3173-3175. |
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| Authors: | WU Shi-Chen WAN Zhen-Zhu LI Huan&sup LIU Zhong-Zhu |
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| Institution: | 1.Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 ;2.Department of Physics, School of Mathematics and Physics, China University of Geosciences, Wuhan 430074 |
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| Abstract: | |
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| Keywords: | 04 80 Nn 04 80 Cc 95 55 Ym |
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