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Vibration detection using optical fiber sensors
(Hindawi, 2010)
info:eu-repo/semantics/article,
Condition monitoring of heavy electromechanical equipment is commonly accomplished in the industry using vibration analysis.
Several techniques, mainly based on capacitive and piezoelectric accelerometers, have been applied ...
Recent developments in fiber optics humidity sensors
(MDPI, 2017)
Artículo / Artikulua,
A wide range of applications such as health, human comfort, agriculture, food processing and storage, and electronic manufacturing, among others, require fast and accurate measurement of humidity. Sensors based on optical ...
Sensitivity enhancement in low cutoff wavelength long-period fiber gratings by cladding diameter reduction
(MDPI, 2017)
Artículo / Artikulua,
The diameter of long-period fiber gratings (LPFGs) fabricated in optical fibers with a low cutoff wavelength was be reduced by hydrofluoric acid etching, enhancing the sensitivity to refractive index by more than a factor ...
Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point
(Optical Society of America, 2016)
Artículo / Artikulua,
This work presents a refractive index sensor based on a long period fiber grating
(LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning
point at large wavelengths. The combination of ...
Ultrahigh-sensitivity sensors based on thin-film coated long period gratings with reduced diameter, in transition mode and near the dispersion turning point
(Optical Society of America, 2015)
Artículo / Artikulua,
The mode transition and the dispersion turning point have been
explored for optimization of thin-film coated long period fiber gratings
during the last years. In this work and additional parameter, the cladding
diameter, ...
Resonances in coated long period fiber gratings and cladding removed multimode optical fibers: a comparative study
(Optical Society of America, 2010)
info:eu-repo/semantics/article,
Two optical fiber devices have been coated in parallel: a long
period fiber grating (LPFG) and a cladding-removed multimode optical
fiber (CRMOF). The progressive coating of the LPFG by means of the
layer-by-layer ...
WDM bi-directional transmission over 35 km amplified fiber-optic bus network using Raman amplification for optical sensors
(Optical Society of America, 2005)
info:eu-repo/semantics/article,
We demonstrate a novel distributed fiber Raman amplified bus
topology used for WDM transmission over 35 km of single-mode fiber by
use of a multiwavelength Raman pump laser and eight Fiber Bragg gratings
(FBGs). This ...
Multi-tap complex-coefficient incoherent microwave photonic filters based on optical single-sideband modulation and narrow band optical filtering
(Optical Society of America, 2008)
info:eu-repo/semantics/article,
We propose a novel scheme to implement tunable multi-tap
complex coefficient filters based on optical single sideband modulation and
narrow band optical filtering. A four tap filter is experimentally
demonstrated to ...
Tunable SESAM-based mode-locked soliton fiber laser in linear cavity by axial-strain applied to a FBG
(IEEE, 2017)
info:eu-repo/semantics/article,
A self-started stable tunable mode-locked (ML) soliton fiber laser in a linear cavity structure composed by commercial passive elements is presented in this paper. It is based on the combination of an Erbium doped fiber ...
Simultaneous measurement of strain and temperature using a single emission line
(IEEE / OSA, 2015)
info:eu-repo/semantics/article,
In this work, we present and demonstrate a novel sensor system for simultaneous measurement of strain and temperature through a unique combination of a long period grating (LPG) and a fiber laser based on a fiber Bragg ...