Fabry–Pérot (F-P) tunable filter, 69, 70 fast Fourier transform (FFT), 213 fiber Bragg grating (FBG), 6, 7 fiber optic rotary joint (FORJ), 129 flame brushing, 52 frequency conversion crystal, 34 fringe period,
The sensing characteristics of irradiated fiber Bragg gratings (FBGs) and Fabry-Perot interferometers (FPIs) were investigated under a 2 MGy dose of
Bragg gratings are reflecting structures with a periodic refractive index modulation. They are contained in dielectric mirrors and in some fiber devices.
Abstract In this paper, we first propose and demonstrate an ultra-compact fiber sensor consisting of fiber Bragg grating (FBG) and Sagnac loop interferometer with a specific taper-based
When employed for detecting biological substance concentrations, functional sensitive films must be introduced to convert the substance concentration into changes in the film''s effective RI.
This paper presents the fabrication of a fiber Bragg grating (FBG)-based Fabry–Perot (FP) structure (7 mm total length) in an adiabatic fiber taper,
Abstract: Characteristics of fiber Bragg grating based Fabry-Perot (FBG-FP) structures under transversal loading are investigated. A novel switchable multi-wavelength fiber laser employing loaded FBG-FP
This fiber laser configuration was recently improved by Kuikui Guo et al. ; here, the authors set a phase-shifted fiber Bragg grating, as a result,
The diameter of an inscribed single mode fiber Bragg grating is etched to be 8 m, with μ totally removed fiber cladding for a high RI sensitiv-ity.
This paper presents a novel optical fiber axial strain sensor based on a Fabry–Perot interferometer (FPI) cavity incorporating Fiber Bragg Gratings (FBGs) and a tapered fiber, which has
In this article, a high strain sensitivity fiber-optics bolt sensor based on the Vernier effect is proposed. Four weak reflection fiber Bragg gratings (WFBGs) are inscribed along the fiber-optics
His current research interests include the development of fiber-optic sensors and device, fiber Bragg grating sensors, novel sensor materials and principles, and optical measurement
Fiber Bragg gratings are reflective structures in the core of an optical fiber with a periodic or aperiodic perturbation of the effective refractive index.
Fiber Bragg grating has embraced the area of fiber optics since the early days of its discovery, and most fiber optic sensor systems today make use of fiber Bragg
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and
A miniature and all-optical fiber sensor based on integration of Fabry–Perot interferometer (FPI) and fiber Bragg grating (FBG) is proposed and experimentally demonstrated for simultaneous
Abstract A hybrid sensing configuration combining fiber Bragg grating (FBG) with a Fabry-Perot interferometer is proposed for highly sensitive detection of pressure and temperature
Therefore, even if the nonlinear refractive index in standard optical fibers is very low, nonlinear effects in a fiber Bragg grating (FBG) continues to attract the attention of many researchers.
Fiber Bragg grating (FBG) sensors have emerged as advanced tools for monitoring a wide range of physical parameters in various fields, including
Here we developed a cascaded Fabry-Perot cavity and fiber Bragg grating strain sensor fully integrated on sapphire fibers, permitting a sufficient temperature compensation and strain
Sensing structures may be embedded into optical fiber having different forms such as a Fabry-Perot interferometer, [7,8] fiber Bragg grating (FBG) [4,9]
In this paper, we present the method for writing a new type of Fabry-Perot intrinsic cavity that is written in tapered optical fiber. Presented concept employs a chirped tapered Bragg...
Fabry-Perot: High accuracy and sensitivity, commonly used in high-performance applications. Fiber Bragg Grating (FBG): Immunity to electromagnetic
Fiber Bragg gratings (FBGs) are ubiquitous as sensors for a range of parameters and also as optical components in telecommunications systems. However, their temperature dependence
We propose a centralized passive-optical-network monitoring scheme using the resonance-spectrum properties of a Fabry-Perot cavity based on fiber Bragg gratings.
The major advantage of these all fiber systems, where the free space mirrors are replaced with a pair of fiber Bragg gratings (FBGs), is the elimination of
1.2 Types of Fiber Bragg Gratings Fiber Bragg Gratings (FBGs) are classified based on their refractive index modulation profile, periodicity, and spectral response. The primary types include uniform,
A variety of methods and structures to achieve fiber optic strain sensors have been proposed and investigated both theoretically and experimentally. Such methods and structures
With the development of optical fiber technology, the application of dynamic grating has been widely concerned, such as optical fiber sensor, tunable narrow-ban
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