Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]
, 2004 We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature
Brady +18 more
core +1 more source
Principles and Application of Polyimide Fiber Bragg Gratings for Surface Strain Measurement
Applied Sciences, 2017 Although theoretical investigation has demonstrated that fewer strain transfer layers imply a greater strain transfer ratio, as well as increased accuracy, most researchers are still focused on investigating encapsulated Fiber Bragg gratings (FBGs) in ...
Yangyang Sun +7 more
doaj +1 more source
Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]
, 2006 Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Cranch, Geoffrey A. +2 more
core +1 more source
Critical issues of double-metal layer coating on FBG for applications at high temperatures [PDF]
, 2019 Use of fiber Bragg gratings (FBGs) to monitor high temperature (HT) applications is of great interest to the research community. Standard commercial FBGs can operate up to 600 ∘ C.
Caponero, M. A. +6 more
core +1 more source
A simple method for fabricating phase-shifted fibre Bragg gratings with flexible choice of centre wavelength [PDF]
, 2009 A simple technique for fabricating phase-shifted fibre Bragg gratings (PSFBGs) without the use of a phase-shifted phase mask is presented. Two, 3-mm long, standard fibre Bragg gratings (FBGs) were inscribed sequentially in singlemode fibre at the same
Chehura, Edmon +2 more
core +1 more source
Astronomical Applications of Multi-Core Fiber Technology [PDF]
, 2020 Optical fibers have altered astronomical instrument design by allowing for a complex, often large instrument to be mounted in a remote and stable location with respect to the telescope.
Cvetojevic, Nick +2 more
core +2 more sources
High Temperature Effects during High Energy Laser Strikes on Embedded Fiber Bragg Grating Sensors
Sensors, 2019 As the applications of fiber Bragg gratings (FBGs) continue to grow and become more advanced, it becomes necessary to understand their behavior when exposed to high temperatures in unique situations.
Michael J. Ross +3 more
doaj +1 more source
Two-axis bend measurement with Bragg gratings in multicore optical fiber [PDF]
, 2003 We describe what is to our knowledge the first use of fiber Bragg gratings written into three separate cores of a multicore fiber for two-axis curvature measurement.
Araujo +16 more
core +2 more sources
Radiation Effects on Fiber Bragg Gratings: Vulnerability and Hardening Studies
Sensors, 2022 Fiber Bragg gratings (FBGs) are point optical fiber sensors that allow the monitoring of a diversity of environmental parameters, e.g., temperature or strain.
Adriana Morana +9 more
doaj +1 more source
Femtosecond laser fabrication of large-core fiber Bragg gratings for high-power fiber oscillators
APL Photonics, 2023 In this paper, a fs-laser phase mask inscription system based on a galvanometer scanning strategy is designed and set up for the fabrication of large-core fiber Bragg gratings (FBGs).
Hao Li +10 more
doaj +1 more source