(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
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Our technique exploits the reflection characteristics of fiber Bragg gratings written in polarization-maintaining fibers to create a frequency
A three-points tracking-based high-speed fiber Bragg grating (FBG) demodulation method based on wavelength-tunable laser is proposed. The wavelength-tunable laser scans just three
It uses polarization-maintaining fiber Bragg grating (PM-FBG) as a frequency discriminator. The basic principle and preliminary results of linearity
This paper introduces a rapid and accurate wearable hand gesture sensing approach with optical fiber Bragg grating (FBG) arrays, interrogated by the dual-comb spectroscopy (DCS)
A fiber Bragg grating is a periodic alteration of core refractive index which is formed by exposure of the optical fiber core to a spatially modulated laser light . The formation of refractive index modulation
Thus, it is used to determine the optimal Gaussian fitting function coefficient to improve demodulation precision. The experimental findings showed that the proposed algorithm can
Their side-writing technique makes a Bragg grating directly in the fiber core using a holographic interferometer illuminated with a coherent ultraviolet (UV) source. Versatility in the fabrication of
Fiber Fabry-Perot tunable filter (FFP-TF) based fiber Bragg grating (FBG) demodulation has been widely applied in many areas, in which F-P etalon is commonly used as wavelength reference. The
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
In particular, developments utilizing specially modified or tailored gratings, intra-grating concepts, multimode gratings, polarization rocking filters, long period gratings, phase shifted devices,
A novel approach to fibre Bragg grating spectra processing is proposed. The method is based on the use of nonlinear filtration and raising the
Abstract To simultaneously achieve the feature of high sensitivity, high precision and large-area in tactile sensing, a hollowed-out quadrangular prism structure flexible pressure sensor
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 In this study, we developed a minimally invasive intravascular catheter integrating ultrasonic imaging with fiber Bragg grating (FBG)-based mechanical sensing. By co-integrating a high
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
An all fiber ultrasound sensing system with cascaded phase-shifted fiber Bragg grating (PS-FBG) cascaded with a normal FBG to guarantee both the high sensitivity and large dynamic range of the
Dual-grating demodulation has been both effective and simple in most fiber Bragg grating (FBG) sensors because it involves self-demodulation, and in theory, temperature effects are eliminated.
Fiber Bragg grating (FBG) sensors have been rapidly considered as excellent sensor elements since they were first demonstrated for strain and temperature measurement . In addition
Fiber Bragg Grating (FBG) is defined as a passive filter device that consists of a diffraction grating created by periodic modulation of the refractive index in the fiber core, allowing it to reflect specific
Mentioning: 1 - Development of a fiber Bragg grating single-point temperature sensor based on fixed filter demodulation technique - Oliveira, Rodrigo Pereira de, Nazaré, Fábio Vieira Batista de,
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-optic sensors have gained much research attention and have been used in various industrial environments , . They have many advantages, such as a simple and compact
A true random bit generator (T-RBG) based on optoelectronic oscillator (OEO) with randomly distributed feedback is proposed and experimentally demonstrated. Through the
Fiber Bragg grating sensors have become widely used for measuring strain, temperature, and other physical parameters in structural health monitoring, industrial process control, and aerospace
Since the Bragg wavelength is a function of the fiber equivalent refractive index and the grating period, any physical parameter able to influence
Mentioning: 3 - A highly-birefringent fiber loop mirror temperature sensor demodulation based on a long-period grating (LPG) in photonic crystal fiber (PCF) with differential processing was proposed.
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
Explore cutting-edge microring modulators and optical fiber Bragg gratings for ultra-low power photonic systems. Discover breakthrough technologies enabling sub-picojoule efficiency in high-speed optical
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.