Results 151 to 160 of about 585 (197)

Microfluidic flow direction and rate vector sensor based on a partially gold-coated TFBG [PDF]

Optics Letters, 2020
In microfluidic chips applications, the monitoring of the rate and the direction of a microfluidic flow is very important. Here, we demonstrate a liquid flow rate and a direction sensor using a partially gold-coated tilted fiber Bragg grating (TFBG) as the sensing element.
Changyu Shen, Dejun Liu, Tingting Lang   +2 more
exaly   +7 more sources

800nm fiber Bragg grating sensing interrogation system using TFBG and CCD array [PDF]

, 2007
An 800nm band fiber Bragg grating sensing interrogation system using TFBG as the core wavelength division component is presented. A charge coupled device (CCD) linear array is put on the focal plane of the lens to detect the light.
Rui Suo, Kaiming Zhou, Guiyun Kai
exaly   +2 more sources

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TFBG-assisted fiber optic sensors for environmental monitoring

Optical Sensors 2021, 2021
In the paper some of the applications of tilted fiber Bragg grating-assisted sensors for conducting measurements of parameters of the surrounding media are presented. A short overview of tilted fiber Bragg gratings (TFBGs) structure and operating principle is provided. Some sensor designs utilizing TFBGs are described, including those working on effect
Egor I. Dolzhenko, Kirill Tomyshev, Oleg V. Butov   +2 more
openaire   +1 more source

Annealing of Gold Films on TFBGs

Latin America Optics and Photonics Conference, 2018
Tilted fiber Bragg gratings have been used to investigate structure changes on electroless plated gold thin films before and after annealing. Changes in intensity and refractive index sensitivity can be useful to model the permittivity as a function of morphology.
Violeta Marquez-Cruz, Jacques Albert
openaire   +1 more source

High-temperature resistance refractometric sensors based on regenerated TFBGs

Optical Sensing and Detection VI, 2020
In this study, we report on the thermal regeneration of Type-I tilted fiber Bragg gratings produced in hydrogen loaded single-mode optical fiber (SMF28). Both 193 nm excimer laser and 266 nm femtosecond pulses were used to inscribe the gratings through phase mask technique.
Safari Yazd, Nazila, Caucheteur, Christophe, Kinet, Damien, Mégret, Patrice, Chah, Karima   +4 more
openaire   +2 more sources

Efficient apodized-TFBG for DWDM systems

2016 Sixth International Conference on Digital Information Processing and Communications (ICDIPC), 2016
This study is carried out to optimize the tilted fiber Bragg grating (TFBG) performance in the reflection mode. This optimization starts by controlling the tilt angle, that causes an intensive decrease in the full width at half maximum (FWHM) at the expense on the peak reflectivity.
Eman A. Elzahaby, Ishac L. Kandas, Moustafa H. Aly   +2 more
openaire   +1 more source

High-precision data analysis for TFBG-assisted refractometer

Sensors and Actuators A: Physical, 2020
Abstract The paper is devoted to the tilted fiber Bragg grating (TFBG)-assisted fiber refractometer. A novel mathematical method for the automatic analysis of its signal is proposed. A change in the refractive index is associated with a change in the cut-off wavelength, which is determined from the envelopes of the sensor’s transmission spectrum ...
Kirill A Tomyshev, Oleg V Butov
exaly   +2 more sources

Phase demodulation of SPR-TFBG for refractometry via Jones formalism

Optica Advanced Photonics Congress 2022, 2022
Optical phase difference between orthogonally polarized modes induced by a gold-coated tilted fiber Bragg grating sensor is extracted from the Jones’s formalism. We provide a phase analysis of slight refractive index variations in aqueous solutions.
Hadrien Fasseaux, Médéric Loyez, Karima Chah, Christophe Caucheteur   +3 more
openaire   +1 more source

A kind of biomolecular probe sensor based on TFBG surface plasma resonance [PDF]

Photonic Sensors, 2015
This paper reports the application of the biomolecular probe sensor based on the tilted fiber Bragg grating (TFBG) surface plasma resonance (SPR) which can recognize the specificity of the specific molecule by depositing sensitive biological membrane outside the active golden layer.
Qi Jiang
exaly   +2 more sources

Researches and experiments on reflective TFBG — SPR biosensor

2017 Chinese Automation Congress (CAC), 2017
This thesis puts forward a kind of reflective tilted fiber Bragg grating (TFBG) surface plasma resonance (SPR) biosensor, which is stable, corrosion-resistant and label-free, and has the advantage of simple operation and field-based test. At first, the biosensor was used to monitor the bacterial density, which has laid a foundation for the subsequent ...
Qi Jiang
exaly   +2 more sources