Observation of fundamental thermal noise in optical fibers down to infrasonic frequencies

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 量子光学重点实验室

	Observation of fundamental thermal noise in optical fibers down to infrasonic frequencies
	Li, Tang; Huang, Junchao; Dong, Jing; Liu, Liang
刊名	Appl. Phys. Lett.
	2016
卷号	108 期号:2
通讯作者	litang@siom.ac.cn ; liang.liu@siom.ac.cn
英文摘要	The intrinsic thermal noise in optical fibers represents the ultimate limit for fiber-based systems. However, at infrasonic frequencies, the spectral behavior of the intrinsic thermal noise is still unclear. In this letter, we present measurements of the fundamental thermal noise in optical fibers that are obtained using a balanced fiber Michelson interferometer. When an ultra-stable laser is used as the laser source and other noise sources are carefully controlled, the 1/f spectral density of the thermal noise is observed down to infrasonic frequencies, and the measured magnitude is consistent with the results of theoretical predictions at frequencies over the range from 0.2 Hz to 20 kHz. Moreover, as observed experimentally, the level of the 1/f thermal noise can be reduced by changing the coatings of the optical fibers. This therefore indicates one possible way to reduce thermal noise in optical fibers at low Fourier frequencies. Finally, the inconsistency between the experimental data and the existing theory for thermomechanical noise is discussed. (C) 2016 AIP Publishing LLC.
收录类别	SCI
资助信息	National Natural Science Foundation of China [11034008, 11274324]; Key Research Program of the Chinese Academy of Sciences [KJZD-EW-W02]
WOS记录号	WOS:000370258400007
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27800]
专题	上海光学精密机械研究所_量子光学重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Li, Tang,Huang, Junchao,Dong, Jing,et al. Observation of fundamental thermal noise in optical fibers down to infrasonic frequencies[J]. Appl. Phys. Lett.,2016,108(2).
APA	Li, Tang,Huang, Junchao,Dong, Jing,&Liu, Liang.(2016).Observation of fundamental thermal noise in optical fibers down to infrasonic frequencies.Appl. Phys. Lett.,108(2).
MLA	Li, Tang,et al."Observation of fundamental thermal noise in optical fibers down to infrasonic frequencies".Appl. Phys. Lett. 108.2(2016).