Results 81 to 90 of about 585 (197)

Temperature and strain discrimination using a single tilted fibre Bragg grating [PDF]

open access: yes, 2007
A fibre optic sensor capable of discriminating between temperature and strain, using a single fibre Bragg grating, is presented. The technique exploits the core–cladding mode coupling of a tilted fibre Bragg grating (TFBG). The core and cladding modes
Tatam, Ralph P.   +2 more
core   +1 more source

Polarization-Dependent Strain and Twist Sensors Based on Tilted Fiber Bragg Grating

open access: yes, 2014
Tilted fiber Bragg grating (TFBG) shows various advantages in sensing parameters such as, strain, temperature and twist angle. In particular, multiple data collected from cladding modes of TFBG provide a multi-functional modality.
Li, Ruichao
core   +1 more source

[INVITED] Tilted fiber grating mechanical and biochemical sensors

open access: yes, 2016
The tilted fiber Bragg grating (TFBG) is a new kind of fiber-optic sensor that possesses all the advantages of well-established Bragg grating technology in addition to being able to excite cladding modes resonantly.
Liu, Fu   +3 more
core   +1 more source

Monitoring battery electrolyte chemistry: Via in-operando tilted fiber Bragg grating sensors

open access: yes, 2021
Operando tracking the chemical dynamics/states of a battery and its components is critical to their second life for boosting their sustainability. Herein, we demonstrate the feasibility and diversity of the tilted fiber Bragg grating (TFBG) optical fiber
Liu, Fu   +7 more
core   +1 more source

Development of a 1-DOF Force Sensor Prototype Incorporating Tapered Fiber Bragg Grating for Microsurgical Instruments

open access: yesIEEE Access, 2019
Decoupling between axial and transversal forces is an essential during tool-tissue interaction in many medicine surgeries; in particular where fine and precise manipulation is required to save the delicate tissues.
Abdulfatah A. G. Abushagur   +3 more
doaj   +1 more source

Interrogation technique for TFBG-SPR refractometers based on differential orthogonal light states

open access: yesApplied Optics, 2011
The generation of near-IR surface plasmon resonance in gold-coated tilted fiber Bragg gratings is strongly dependent on both the polarization state of the transmission light and the property of confining materials (including the coating materials and surrounding media).
Voisin, Valérie   +3 more
openaire   +2 more sources

Weak feedback assisted random fiber laser from 45°-tilted fiber Bragg grating [PDF]

open access: yes, 2019
We have demonstrated the realization of a high-polarization random fiber laser (RFL) output based on the hybrid Raman and Erbium gain with the tailored effect provided by a 45°-tilted fiber Bragg grating (45°-TFBG), revealing an improvement in the ...
Hu, Zhijia   +7 more
core   +1 more source

环境折射率的细微变化对TFBG透射光谱的影响

open access: yes, 2016
利用OptiGrating软件研究了TFBG(倾斜光纤光栅)在环境折射率变化极其微小的情况下不同模式的光谱特性。结果表明,微小环境折射率的变化对纤芯模与幻影模的影响甚微,却对包层模影响较大。由于变化极小,包层模谐振波长的漂移可以忽略,只需考虑谐振峰深度的变化。发现波长在1 542nm附近的高阶包层模对环境折射率高度敏感,并且在一定的范围内灵敏度极高,最高可达10-5量级 ...
陶子盛, 黄勇林, 高久鹏
core   +1 more source

Optical characterization sensing method of TFBG sensor for battery electromotive force monitoring

open access: yesOptics Express
In the past few years, fiber optic sensors have demonstrated an amazing ability to detect the state of charge (SOC) and electromotive force (EMF) inside a battery in real-time. However, it remains an enormous challenge to characterize the relationship between the spectral shift of the fiber sensor and the internal EMF change of the battery.
Yunxin, Hu   +7 more
openaire   +2 more sources

Tilted Fiber Bragg Grating Sensor Using Chemical Plating of a Palladium Membrane for the Detection of Hydrogen Leakage

open access: yesSensors, 2018
A tilted fiber Bragg grating (TFBG) hydrogen sensor coated with a palladium (Pd) membrane by the electroless plating method is proposed in this paper. A uniform layer of Pd metal is fabricated in aqueous solutions by the chemical coating method, which is
Jiachen Yu   +4 more
doaj   +1 more source

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