Long Period Fibre Gratings
In the last 15 years, alternative writing methods of long-period fibre gratings have been proven after the demonstration of UV radiation method. Some of the most used methods include; the heating, the
In situ stress monitoring and calibration of fiber Bragg Gratings
In this paper, we controlled the furnace to sustain a defined temperature and applied increasing stress steps to the sample. In this way, we can differentiate between the changes caused
Mechanically Induced Long-Period Fiber Gratings and Applications
This paper presents a review of the evolution of LPFGs, with a specific focus on the progression and current trends of mechanically induced long-period fiber gratings.
High-temperature and stress response behavior of femtosecond laser
Eccentric fiber Bragg grating (EFBG) is inscribed in standard communication single-mode fiber using femtosecond laser pulses, and the temperature and strain sensing characteristics are
In-fiber Long-period Grating and Fiber Bragg Grating-based
In this study, we experimentally demonstrated that a high-sensitivity fiber sensor can be used for the remote sensing of temperature and stress simultaneously. The proposed sensor includes several
Fiber Bragg Gratings for Sensing Temperature and Stress in
Abstract: We study the feasibility of employing fiber Bragg gratings (FBG) for measuring thermodynamics parameters of super conducting coils. The distributions of mechanical stress and
High Mechanical Strength Thermally Regenerated Fiber Bragg
This work proposes an effective high-temperature and stress–strain sensing technology, which is expected to be used for structural health monitoring in high-temperature environment.
Fiber Bragg gratings with enhanced thermal stability by residual
al stress through use of an annealing treatment at high temperature are presented. Such gratings exhibit excellent thermal stability at temperatures up to 1200 °C, showing a grating...
Fiber Bragg Grating Sensors with Enhanced Sensitivity for High
In this work, we investigate the sensing performance of Fiber Bragg Gratings (FBGs) engineered to operate near EPs through precise structural tuning. By aligning the reflection spectrum edges with
Fabrication of Fiber Bragg Gratings with A Direct-Write Method
In this report, modeling and experimental results are presented for three fiber Bragg gratings that were fabricated in Newport F-SMF-28 fiber with the direct-write method. The model is based on coupled
Fabrication long period fiber Bragg grating by using CO2 laser
In this study long-period-fibre gratings (LPFGs) were prepared experimentally using a carbon dioxide (CO 2) laser pulse and SMF. The point by point (pbp) technique was used with
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