Multiple-pass Enhanced Group Delay Measurement Scheme of FBG Based on Optical Low-coherence

Z Ma, D Xu, Q Chai, J Zhang - Journal of Lightwave Technology, 2023 - ieeexplore.ieee.org
We propose an enhanced multiple-pass group delay (GD) measurement scheme of fiber-
Bragg grating (FBG) based on optical low-coherence reflectometry (OLCR). The fiber loop …

Determination of strain distribution and temperature gradient profiles from phase measurements of embedded fibre Bragg gratings

X Chapeleau, P Casari, D Leduc… - Journal of Optics A …, 2006 - iopscience.iop.org
In this paper, a powerful method for measuring non-uniform strain is reviewed and extended
to the measurement of temperature gradients inside an epoxy part. The sensor is an …

Local characterization of fiber-Bragg gratings through combined use of low-coherence interferometry and a layer-peeling algorithm

X Chapeleau, D Leduc, C Lupi, F López-Gejo… - Applied …, 2006 - opg.optica.org
The technique presented here allows us to obtain an accurate determination of the refractive
index modulation amplitude, the mean effective index, and the chirp of fiber-Bragg gratings …

Experimental synthesis of fibre Bragg gratings index profiles: comparison of two inverse scattering algorithms

D Leduc, X Chapeleau, C Lupi, FL Gejo… - Measurement …, 2006 - iopscience.iop.org
In this paper we use inverse scattering algorithms to synthesize the index profiles of fibre
Bragg gratings from low coherence interferometry measurements. We compare two …

Local and spectral characterization of optical fibers and fiber Bragg gratings with low coherence interferometry

V Gaillard, X Aduriz, N Daher, X Chapeleau… - Fiber and Integrated …, 2009 - Taylor & Francis
In this article, we describe local and spectral characterization of fibers and integrated optical
components using low coherence interferometry. Chromatic dispersion and group …

Passive and active Bragg gratings for optical networks

Z Zhang - 2007 - eprints.soton.ac.uk
This thesis investigates fibre Bragg grating (FBG) devices. Specifically, it consists of the
developments and applications of two groups of devices: the optical phase en/decoders and …

[PDF][PDF] Low Coherence Interferometry

X Chapeleau, D Leduc, C Lupi, V Gaillard… - … using Optic and RF …, 2013 - hal.science
Optical wave frequencies are very high, the eye and other detectors respond to light intensity
only, in other words to the time average of the electric field amplitude squared. For this …

Optical characterization of photonic crystal fibers by optical low-coherence reflectometry and scanning near field optical microscopy

V Gaillard, L LaLouat, C Lupi, D Leduc… - Photonic Crystal …, 2007 - spiedigitallibrary.org
PROCEEDINGS OF SPIE Page 1 PROCEEDINGS OF SPIE SPIEDigitalLibrary.org/conference-proceedings-of-spie
Optical characterization of photonic crystal fibers by optical lowcoherence reflectometry and …

[PDF][PDF] Localisation et mesure d'amplitude d'un saut de phase d'un réseau de Bragg

X Chapeleau, D Leduc, C Lupi… - Journées scientifiques du …, 2004 - ursi-france.org
L'association de la réflectométrie à faible cohérence et de l'algorithme inverse du
layerpeeling permet de déterminer l'amplitude de modulation de l'indice et la phase de …

Accurate index profile measurements for fiber bragg gratings and sensor application

X Chapeleau, D Leduc, P Casari… - … on Optical Fiber …, 2004 - ieeexplore.ieee.org
This paper demonstrates that the combination of the optical low-coherence reflectometry
and the layer-peeling algorithm is a suitable method to measure the index profile of fiber …