A Tracking-Based High-Speed Demodulation Method for Fiber Bragg
In this article, a tracking-based high-speed demodulation method for FBG sensing systems based on the wavelength-tunable laser is proposed. The wavelength-tunable laser only
Fiber Bragg Grating Demodulator BGD-4002
Optical Phase/Frequency Demodulation Using Polarization
Our technique exploits the reflection characteristics of fiber Bragg gratings written in polarization-maintaining fibers to create a frequency discriminator, which is able to convert PM/FM signals into
A fiber Bragg grating sensor demodulation technique using a
We propose and experimentally demonstrate a simple, passive, and self-referencing wavelength shift detection scheme for use in fiber Bragg grating sensing systems. The demodulation system is based
Demodulation of Acoustic Signals in Fiber Bragg Grating Ultrasonic
In this study, we propose a demodulator for fiber Bragg grating (FBG) ultrasonic sensor array using arrayed waveguide grating (AWG). Wavelength modulation in the FBG center
Dynamic demodulation of spectral shifts in fiber-Bragg
A variety of spectral demodulators are available, 1 including spectrometers, scanning tunable filters, and unbalanced path-length interferometers. We have
Design of Fiber Grating Demodulation System Based on Tunable
In this paper, a photoelectric conditioning circuit for fiber Bragg grating demodulation is designed. The experimental results show that this method can accurately demodulate fiber Bragg
Full article: Fiber Bragg grating demodulation through
Since the Bragg wavelength is a function of the fiber equivalent refractive index and the grating period, any physical parameter able to influence
Demodulation Algorithm for Fiber Bragg Grating Sensors
A demodulation algorithm is vital for a fiber Bragg grating (FBG) sensing system. In this paper, a novel demodulation algorithm based on the variable-step-size method and cross-correlation algorithm is
Demodulation method for vibration sensors of ultra-weak Fiber Bragg
Simulation and experimental findings demonstrate that FMD can effectively eliminate the information of environmental noise and temperature, and greatly retain vibration information. In the
Research and Implementation of Super High-Speed Fiber Bragg Grating
A super high-speed fiber grating demodulator capable of simultaneously demodulating four grating channels is designed. The demodulator uses Fourier domain mode locked laser which consists of a
Demonstration of a Filterless, Multi-Point, and
We demonstrated in this work a filterless, multi-point and temperature-independent FBG (fiber Bragg grating) dynamical demodulator
Low-cost high-speed fiber optic grating demodulation
A low-cost high-speed demodulation system based on a fiber grating spectral filter has been developed to support strain and temperature sensing in
Fiber Bragg Gratings
For applications at extremely high temperatures, where even Type II gratings might degrade or standard silica fibers drift, regenerated fiber Bragg gratings (RFBGs)
Discrimination methods and demodulation techniques for fiber Bragg
In particular, developments utilizing specially modified or tailored gratings, intra-grating concepts, multimode gratings, polarization rocking filters, long period gratings, phase shifted devices,
Demodulation Algorithm for Fiber Bragg Grating Sensors
Keywords: fiber Bragg grating, demodulation algorithm, variable step size, correlation coeficient A demodulation algorithm is vital for a fiber Bragg grating (FBG) sensing system. In this paper, a novel
Fiber Bragg grating strain sensor demodulator using a chirped fiber
The demodulator uses UV-induced birefringence of chirped fiber grating to interrogate the wavelength shift of a sensor FBG.
Fiber Bragg grating sensor demodulation technique by synthesis of
In the case of twin Bragg gratings, the parameters to be adjusted to reconstruct the reflection spectrum are the length, the period, the index modulation of each grating and also the
A Novel Frequency-Modulation (FM) Demodulator for
A novel scheme for demodulating frequency-modulated optical signals is proposed. It uses polarization-maintaining fiber Bragg grating (PM-FBG) as a
Fiber Bragg grating strain sensor demodulator using a chirped fiber
A fiber Bragg grating (FBG) sensor demodulator using a chirped fiber grating is proposed. The demodulator uses UV-induced birefringence of chirped fiber grating to interrogate...
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