In this work, we reviewed the most important achievements of INESC TEC related to the
fabrication of long-period fiber gratings using the electric arc technique. We focused on the …

A directional bending sensor based on thin-core fiber Bragg grating is proposed and
demonstrated experimentally. It is inscribed by off-center technique and exposed by 193 nm …

A fiber sphere-embedded long-period fiber grating (LPFG) sensor has been proposed and
fabricated for curvature measurement with high sensitivity. Compared with the normal LPFG …

Experimental optimization of all fiber Mach–Zehnder interferometers based on concatenated
tapers is presented. The experimental optimization was realized by the application of the …

Este trabalho apresenta uma nova técnica de fabricação de redes de período longo com
descargas de arco elétrico tendo em vista o desenvolvimento de dispositivos com perda …

The optical fiber sensor for oriented bending based on eccentric UV exposure is fabricated.
With the eccentric UV exposure on the ready-made Michelson interference fiber structure …

We report on the selective modal control of tailored femtosecond-written long period fiber
gratings (LPFG). It is shown that the excitation of higher order cladding modes is possible …