State of the art of Brillouin fiber-optic distributed sensing

A Motil, A Bergman, M Tur - Optics & Laser Technology, 2016 - Elsevier
Fiber-optic distributed sensing, employing the Brillouin effect, is already a commercially
available measurement technique for the accurate estimation of the static strain/temperature …

Distributed polymer optical fiber sensors: A review and outlook

Y Mizuno, A Theodosiou, K Kalli, S Liehr, H Lee… - Photonics …, 2021 - opg.optica.org
Aging degradation and seismic damage of civil infrastructures have become a serious issue
for society, and one promising technology for monitoring their conditions is optical fiber …

Quasi-distributed fiber Bragg grating sensing using stepped incoherent optical frequency domain reflectometry

S Werzinger, S Bergdolt, R Engelbrecht… - Journal of Lightwave …, 2016 - ieeexplore.ieee.org
We examine the quasi-distributed interrogation of fiber Bragg grating arrays (FBGA) with the
method of stepped incoherent optical frequency domain reflectometry (IOFDR) combined …

Effects of gamma radiation on perfluorinated polymer optical fibers

P Stajanca, L Mihai, D Sporea, D Neguţ, H Sturm… - Optical Materials, 2016 - Elsevier
The paper presents the first complex study of gamma radiation effects on a low-loss
perfluorinated polymer optical fiber (PF-POF) based on Cytop® polymer. Influence of …

Microwave photonics filtering interrogation technique under coherent regime for hot spot detection on a weak FBGs array

J Hervás, D Barrera, J Madrigal… - Journal of Lightwave …, 2018 - opg.optica.org
An interrogation technique of cascaded FBG sensors based on a microwave photonics
filtering technique under coherent regime is presented. The sensing information of a 5-m …

[KİTAP][B] Fibre optic sensing techniques based on incoherent optical frequency domain reflectometry

S Liehr - 2015 - opus4.kobv.de
In this thesis, an alternative approach to the well-known optical time domain reflectometry
(OTDR) technique is presented. A thorough analysis regarding distributed backscatter …

A centimeter resolution GIS insulator strain distribution measurement method based on OFDR

G Ma, W Qin, Y Du, H Zhou, Y Li, C Yan… - IEEE Sensors …, 2018 - ieeexplore.ieee.org
We proposed a centimeter-resolution insulator strain measuring system based on the optical
frequency domain reflectometry to achieve hundreds points distribution measurement. The …

Bend-loss-free distributed sensor based on Rayleigh backscattering in Ge-doped-core PCF

K Naeem, YS Kwon, Y Chung, IB Kwon - IEEE Sensors Journal, 2017 - ieeexplore.ieee.org
We propose a bend-loss free, high-resolution, fiberoptic distributed sensor by using a new
sensing fiber namely Ge-doped-core photonic crystal fiber (PCF) in optical frequency …

Femtosecond laser structuring of polymer optical fibers for backscatter sensing

S Liehr, J Burgmeier, K Krebber… - Journal of lightwave …, 2013 - opg.optica.org
Focused femtosecond laser pulses are used to create scattering damage in the core of
polymer optical fibers (POF). The resulting structures are investigated regarding morphology …

Low-power silicon strain sensor based on CMOS current reference topology

N Roisin, TP Delhaye, N André, JP Raskin… - Sensors and Actuators A …, 2022 - Elsevier
A strain sensor inspired by a Widlar self-biased current source topology called β-multiplier is
developed to obtain a strain-dependent reference current with high supply rejection. The …