Tunable Polymer Fiber Bragg Grating (FBG) Inscription: Fabrication of Dual-FBG Temperature Compensated Polymer Optical Fiber Strain Sensors

Fabrication and characterization of polycarbonate microstructured polymer optical fibers for high-temperature-resistant fiber Bragg grating strain sensors

Here we present the fabrication of a solid-core microstructured polymer optical fiber (mPOF) made of polycarbonate (PC), and report the first experimental demonstration of a fiber Bragg grating (FBG) written in a PC optical fiber. The PC used in this work has a glass transition temperature of 145°C. We also characterize the mPOF optically and mechanically, and further test the sensitivity of th...

DC Index Shifted Dual Grating Based Superstructure Fiber Bragg Grating as Multichannel FBG and Multiparameter Sensor

A new design of superstructure fiber Bragg grating using two alternately sampled FBGs is proposed. Dual-band multichannel characteristics and multiparameter sensing can be realized using multiple reflection peaks located in two separate regions of wavelength.

Angle dependent Fiber Bragg grating inscription in microstructured polymer optical fibers.

We report on an incidence angle influence on inscription of the Fiber Bragg Gratings in Polymethyl methacrylate (PMMA) microstructured polymer optical fibers. We have shown experimentally that there is a strong preference of certain angles, labeled ГK, over the other ones. Angles close to ГK showed fast start of inscription, rapid inscription and stronger gratings. We have also shown that grati...

Temperature Compensated Fiber Bragg Grating Accelerometer

Following the fast developments that have been taking place in fiber-optic (FO) sensing technology, commercial FO accelerometers are just now reaching the market. Solutions based on Fiber Bragg grating (FBG) technology are the ones that show the greater potential of responding to market demands for FO accelerometers, driven, in part, by some of the valuable characteristics of FO sensors, such a...

Self-Protected Sensor System Utilizing Fiber Bragg Grating (FBG)-Based Sensors