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
Review of Optical Fiber Sensors: Principles,
A notable example is the use of ML to resolve cross-sensitivity problems, such as distinguishing temperature from strain in a single Fiber Bragg
Development and Field Construction Protection of a Fiber Bragg Grating
Facing the challenges in field monitoring of the mechanical response of geogrids in asphalt pavements, this study integrated two types of Fiber Bragg Grating (FBG) sensors, unarmored and
Full article: Fiber Bragg grating demodulation through
ABSTRACT The aim of this article is to introduce an innovative algorithm for the calculation of the shift of the maximum reflectivity wavelength of
Design of Fiber Grating Demodulation System Based on Tunable F-P
Based on the influence of hysteresis and creep of piezoelectric ceramics, a tunable F-P filter is calibrated with a standard to locate the central wavelength reflected by fiber Bragg grating. In
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
Fiber Bragg Grating Dynamic Calibration Based on
Real-time dynamic calibration is essential to improve the measured accuracy of the sensor. In this paper, we present a dynamic calibration method for FBG sensor
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
Advances in fiber-optic-based 3D shape sensing technology
It examines quasi-distributed sensing approaches, including fiber Bragg gratings (FBGs), and addresses mitigation techniques for temperature-strain cross-sensitivity. A comparative analysis
Optical fiber grating sensors and methods of manufacture
U.S. Patent Application US20090123111A1 for systems and methods comprise or involve optical fibers having Bragg gratings. The optical fibers can be assembled in a parallel manner into a fiber sensor
Relevance of the Spectral Analysis Method of Tilted Fiber Bragg Grating
Optical fiber technology has rapidly progressed over the years, providing valuable benefits for biosensing purposes such as sensor miniaturization and the possibility for remote and
Fiber Bragg grating sensor demodulation technique by synthesis of
Our numerical program uses the transfer matrix method and the Nelder–Mead simplex algorithm. It can be easily implemented in the case of twin Bragg gratings. A twin grating is
Research on key technologies of high precision Fiber Bragg grating
In order to improve the accuracy of the fiber bragg grating (FBG) demodulation system and the spectral flatness of the tunable laser, a calibration scheme and flatness optimization method for effectively
Dynamic Real-Time Calibration Method for Fiber Bragg Grating
In this study, a novel drift calibration method based on two-stage decomposition and hybrid modeling is proposed.
A Tracking-Based High-Speed Demodulation Method for Fiber Bragg Grating
The vibration measurement of spacecraft structures in space applications has raised higher requirements for the demodulation frequency of the fiber Bragg grating (FBG) demodulator. In
FBG-based strain monitoring and temperature compensation for
However, the evaluation methods and monitoring technologies for composite tanks under cryogenic experiments are still challenging problems. In this paper, fiber Bragg grating (FBG) is used
Research on Peak-Detection Algorithms of Fiber Bragg Grating
Peak-detection algorithm is a crucial part of fiber grating signal demodulation. It plays a decisive role in the accuracy, speed and anti-noise performance of the entire system. This article
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
Recent advancements in fiber Bragg gratings based temperature and
Fiber Bragg Gratings or FBGs have achieved significant attention towards sensing and communication applications due to their outstanding advantages. D
Fiber Bragg grating demodulation through innovative numerical
The aim of this article is to introduce an innovative algorithm for the calculation of the shift of the maximum reflectivity wavelength of a Fiber Bragg Grating experiencing an applied strain. An
Millimeter-resolution distributed Fiber-Optic thermal imaging for
This study develops a millimeter-resolution distributed temperature-sensing platform using all-grating fiber (AGF)-assisted optical frequency domain r
Field Guide to Nonlinear Calibration of Fiber Bragg Gratings for
Abstract This paper presents a field guide to nonlinear calibration of Fiber Bragg Gratings (FBG1,2) for temperature sensors with a wide temperature range.
Design of Fiber Grating Demodulation System Based on Tunable
In this paper, the demodulation system of fiber Bragg grating is designed by using the demodulation method of tunable F-P filter, and the effect of hysteresis and creep of piezoelectric
A current mirror-based photoelectric detection circuit for tunable
Semantic Scholar extracted view of "A current mirror-based photoelectric detection circuit for tunable laser-driven fiber Bragg grating sensing systems" by Le Wang et al.
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
Accurate and fast calibration for FBG demodulation based on deep
In order to verify the validity of the calibration method based on deep learning and ensemble learning, FBG demodulation experiments were designed in two different temperature
(PDF) Optical Phase/Frequency Demodulation Using
Our technique exploits the reflection characteristics of fiber Bragg gratings written in polarization-maintaining fibers to create a frequency
Optimized demodulation of highly overlapped fiber Bragg grating
The proposed method offers the potential to enhance the capacity of FBG sensors within a network, paving the way for notable advancements in signal demodulation within intricate sensor
Optical Phase/Frequency Demodulation using Polarization
Optical Phase/Frequency Demodulation using Polarization-Maintaining Fiber Bragg Gratings Dipen Barot, Member, Optica, Rui Zhou, Student Member, Optica, and Lingze Duan, Senior Member, IEEE,
Demodulation of Fibre Bragg Grating Sensors by Using
Fibre Bragg gratings are periodic structures with a significant number of sensor applications. Such gratings have all the positive properties of fibre
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