Probing the Ultimate Limit of Fiber-Optic Strain Sensing

Gagliardi, G.; Salza, M.; Avino, S.; Ferraro, Pietro; Natale, P. De

doi:10.1126/science.1195818

Cited by 203 publications

(121 citation statements)

References 27 publications

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“…A later experiment performed by Batolo et al 23 shown that the combination of thermomechnical and thermoconductive models is consistent with the experimental data extracted from an optical fiber interferometer at the frequencies from 30 Hz to 100 kHz. For the range of infrasonic frequencies (10 mHz to 30 Hz), Gagliardi et al 4 reported strain measurements with the highest sensitivity obtained by using a fiber Fabry-Perot (FP) cavity. However, the sources of the noise floor are still in doubt 18,24,25 .…”

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confidence: 99%

“…In many fiber-based systems, such as interferometric fiber-optic sensors [1][2][3][4] , fiber lasers [5][6][7] , and fiber-delay-line stabilized lasers 8 , the fundamental resolution or frequency stability is limited by the intrinsic thermal noise inside optical fibers. Thus, an experimental and theoretical understanding of the thermal noise in optical fibers is important.…”

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confidence: 99%

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

Dong

Huang

et al. 2016

Applied Physics Letters

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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.

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confidence: 99%

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confidence: 99%

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

Dong

Huang

et al. 2016

Applied Physics Letters

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“…In this context, we chose to use Fiber Bragg Grating (FBG) resonators [21,22] as the optical cavities of our network. Such relatively new devices have been mostly employed in sensing applications [23,24] tiny deformations of the fiber within the Bragg mirrors. These qualities make them ideal for their first application in an optical simulator made of a network of connected tunable cavities.…”

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confidence: 99%

“…In this context, we chose to use Fiber Bragg Grating (FBG) resonators [21,22] as the optical cavities of our network. Such relatively new devices have been mostly employed in sensing applications [23,24] so far, and are characterized by a straightforward alignment and easy tunability by arXiv:1504.04809v2 [quant-ph] 30 Jul 2015 …”

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confidence: 99%

Observation of Noise-Assisted Transport in an All-Optical Cavity-Based Network

Viciani¹,

Lima²,

Bellini³

et al. 2015

Phys. Rev. Lett.

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Recent theoretical and experimental efforts have shown the remarkable and counter-intuitive role of noise in enhancing the transport efficiency of complex systems. Here, we realize simple, scalable, and controllable optical fiber cavity networks that allow us to analyze the performance of transport networks for different conditions of interference, dephasing and disorder. In particular, we experimentally demonstrate that the transport efficiency reaches a maximum when varying the external dephasing noise, i.e. a bell-like shape behavior that had been predicted only theoretically. These optical platforms are very promising simulators of quantum transport phenomena, and could be used, in particular, to design and test optimal topologies of artificial light-harvesting structures for future solar energy technologies. The transmission of energy through interacting systems plays a crucial role in many fields of physics, chemistry, and biology. In particular, the study and a full understanding of the mechanisms driving the energy transport may open interesting perspectives both to improve the process of transferring quantum or classical information across complex networks, and to explain the high efficiency of the excitation transfer through a network of chromophores in photosynthetic systems. Indeed, recently, several experiments on light-harvesting complexes have suggested a possible correlation between the remarkable transport efficiency of these systems and the presence of long-lived quantum effects, observed also at room temperature [1][2][3][4][5][6].Stimulated by these results, a large theoretical effort has been undertaken to study transport mechanisms through a network of chromophores or, more in general, through a complex network, bringing to evidence the active role of noise in energy transport. In fact, it is usually accepted that the uncontrollable interaction of a transmission network with an external noisy environment negatively affects the transport efficiency by reducing the coherence of the system [7]. However, the noise has also been found to play a positive role in assisting the transport of energy [8][9][10][11][12][13] and information [14], and loss-induced optical transparency has been observed in waveguide systems [15]. In certain circumstances, the presence of noise can lead to the inhibition of destructive interference and to the opening of additional pathways for excitation transfer, with a consequent increase of the transport efficiency [10]. This phenomenon has generally gone under the name of noise-assisted transport (NAT). In this context, the role of geometry has been theoretically analyzed in terms of structure optimization [16], in the case of disordered systems [17], and also for the proposal of design principles for biomimetic structures [18]. Therefore, the possibility to experimentally reproduce NAT effects in purely optical networks with controllable parameters and topology, would allow one to verify the predictions of NAT models in simple test systems. Moreover, the investigation...

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“…Various types of fiber optic pressure sensors have been demonstrated to fulfill specific pressure applications, including fiber Bragg gratings (FBGs) [1], photonic crystal fiber (PCF) devices [2] and interferometers [3,4], and the pressure sensitivity achieved is typically on the order of −10 pm/Mpa. Among above mentioned configurations, the pressure sensors that are based on Fabry-Pérot (FP) interferometer have shown promising results for static and dynamic pressure measurements [5,6], as well as other physical and chemical parameter detections such as temperature [7], strain [8,9] and refractive index [10]. The FP interferometers can achieve extremely high sensitivity and flexibly demodulated in the wavelength domain [3,4] and frequency domain [6,8], or simply use light intensity detection [11].…”

Section: Introductionmentioning

confidence: 99%

Compressible fiber optic micro-Fabry-Pérot cavity with ultra-high pressure sensitivity

Wang¹,

Wang²,

Wang³

et al. 2013

Opt. Express

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Abstract:We propose and demonstrate a pressure sensor based on a micro air bubble at the end facet of a single mode fiber fusion spliced with a silica tube. When immersed into the liquid such as water, the air bubble essentially acts as a Fabry-Pérot interferometer cavity. Such a cavity can be compressed by the environmental pressure and the sensitivity obtained is >1000 nm/kPa, at least one order of magnitude higher than that of the diaphragm-based fiber-tip sensors reported so far. The compressible FabryPérot interferometer cavity developed is expected to have potential applications in highly sensitive pressure and/or acoustic sensing. 447-449 (2005). 13. D. Donlagic and E. Cibula, "All-fiber high-sensitivity pressure sensor with SiO 2 diaphragm," Opt. Lett. 30(16), 2071-2073 (2005). 14. X. Wang, J. Xu, Y. Zhu, K. L. Cooper, and A. Wang, "All-fused-silica miniature optical fiber tip pressure sensor," Opt. Lett. 31(7), 885-887 (2006). 15. W. Wang, N. Wu, Y. Tian, C. Niezrecki, and X. Wang, "Miniature all-silica optical fiber pressure sensor with an ultrathin uniform diaphragm," Opt. Express 18(9), 9006-9014 (2010). 16. E. Cibula, S. Pevec, B. Lenardič, É. Pinet, and D. Donlagic, "Miniature all-glass robust pressure sensor," Opt.Express 17(7), 5098-5106 (2009

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Probing the Ultimate Limit of Fiber-Optic Strain Sensing

Cited by 203 publications

References 27 publications

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

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

Observation of Noise-Assisted Transport in an All-Optical Cavity-Based Network

Compressible fiber optic micro-Fabry-Pérot cavity with ultra-high pressure sensitivity

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