To achieve synchronous demodulation of a large-capacity Fiber Bragg Grating (FBG) sensor network, a FBG demodulation system based on modulated grating Y-branch (MG-Y) tunable laser is designed, combining wavelength division multiplexing and space division multiplexing technologies. In this paper, a novel demodulation algorithm based on the variable-step-size method and cross-correlation algorithm is proposed to demodulate the wavelength of an FBG.
Fiber Bragg grating is used for monitoring various parameters. In this paper, a set of demodulation system is built based on the principle of edge filter. The system can realize static and
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
In this paper, a fiber grating demodulation system based on two transmission volume Bragg gratings (VBGs) was proposed. In order to resolve
They are also used in optical fiber communications for wavelength division multiplexing. A special type, chirped volume Bragg gratings, is widely used for
To achieve synchronous demodulation of a large-capacity Fiber Bragg Grating (FBG) sensor network, a FBG demodulation system based on modulated grating Y-branch (MG-Y) tunable laser is designed,
This paper presents an innovative and efficient shape-sensing approach for optical fiber Bragg grating (FBG) arrays, employing the dual-comb spectroscopy (DCS) technique for demodulation.
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
Aiming at dynamic torque measurement system, fiber Bragg grating sensing principle is used to measure rotating shaft torque, and a fiber Bragg grating demodulation system based on
Thus, a novel intensity demodulation system based on the phase-locked loop is proposed in this study. Theoretical analysis and experiments show that the system has a high signal-to-noise
To solve the problem of tunable semiconductor lasers in a multichannel Fiber Bragg Grating (FBG) real-time demodulation system, where the milliwatt output power limits channel
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,
Abstract Fiber-optic 3D shape sensing technology, renowned for its immunity to electromagnetic interference and unparalleled spatial accuracy, is indispensable for real-time
Compared with traditional long-period fiber gratings (LPFGs), the proposed SC-LPFG-based liquid level sensor realizes liquid level-temperature decoupling, with a wider measurement range and enhanced
We present a transceiver optical phased array incorporating grating-lobe demodulation, enabling parallel detection of multiple targets. An FMCW-based LiDAR system implementing this design enables
A high-performance, low-cost demodulation system is essential for fiber-optic sensor-based measurement applications. This paper presents a
In this work, we design a stress sensor for multi-parameter haptic perception based on a side-polished chirped fiber Bragg grating (SCFBG). And an improved mutual correlation spectral
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 novel demodulation method for FBG sensors with high sensitivity and applicability. The sensor apparatus includes a broad- band source in L-band, a circulator, a fiber Bragg grating element, and
A low-cost high-speed demodulation system based on a fiber grating spectral filter has been developed to support strain and temperature sensing in
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
Although various tactile sensing systems have been proposed for robotic applications, existing solutions of electromagnetic-based, vision-based, and traditional fiber Bragg gratings (FBG)
To address this need, a low-power tunable laser-based fiber grating demodulator has been developed in this paper, employing a variable step-length laser scanning strategy based on
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 ceramics is
A modular 32-channel ultra weak fiber Bragg grating (uw-FBG) demodulation system is proposed. This system includes an optical pulse generating unit, an optical circuit unit, a signal
A novel fiber Bragg grating (FBG) sensing system with a core laser source comprising a high-density integrated distributed feedback (DFB) laser array based on the reconstruction
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