Highly sensitive fiber Bragg grating-based pressure sensor using side-hole packaging

Fiber-Optic Pressure Sensor Based on π-Phase- Shifted Fiber Bragg Grating on Side-Hole Fiber

We present a fiber-optic pressure sensor based on a π-phase-shifted fiber Bragg grating (πFBG) fabricated on a sidehole fiber. Due to the resonance effect of a πFBG, its reflection spectrum features two notches that are dramatically narrower than the linewidth of a regular FBG of similar length. The narrow spectral notches allow high-resolution measurement of their spectral separation, signific...

A Highly-sensitive Fiber Bragg Grating Transverse Strain Sensor Using Micro-structure Fibers

Fiber Bragg Grating Temperature Sensor

 In this paper, we analyze theoretically and experimentally the performance of fiber Bragg gratings as temperature sensors. These sensors have potential applications in monitoring the temperature in aerospace structures and smart structures. Index Terms  Fiber Bragg Gratings, Optical Fibers and Temperature Sensors.

A Magnetostrictive Composite-Fiber Bragg Grating Sensor

This paper presents a light and compact optical fiber Bragg Grating sensor for DC and AC magnetic field measurements. The fiber is coated by a thick layer of a magnetostrictive composite consisting of particles of Terfenol-D dispersed in a polymeric matrix. Among the different compositions for the coating that were tested, the best magnetostrictive response was obtained using an epoxy resin as ...

Fiber Bragg Grating Sensors and Sensor Arrays

Fiber Bragg gratings have found widespread application in sensor systems, e. g. for temperature, strain or refractive index measurements. The concept of fiber Bragg gratings allows also in a simple way the realisation of arrays of such sensors. The development of such optical fiber sensor systems often requires special fibers and grating structures which may go beyond more conventional Bragg gr...