Abstract
By measuring intensity distributions of cladding modes and using an optimization technique we show that the perturbation which forms arc-induced gratings in standard fibers is antisymmetric, while the perturbation in boron-germanium codoped fibers is symmetric. © 2006 Optical Society of America.

Abstract
In this work, a Brillouin fibre laser sensor for strain and temperature discrimination is presented. The fibre laser sensor consists in a Fabry-Pérot cavity with 20 meters of optical fibre between two Bragg gratings. © 2006 OSA/OFS 2006.

Abstract
A temperature-independent strain sensor using a fibre Bragg grating written in an array fused taper is presented. This structure shows a spectrum with several peaks where their relative amplitudes are independent of temperature variations but change with applied strain. © 2006 OSA/OFS 2006.

Abstract
A new approach for a fibre optic modal Mach-Zehnder interferometer based on the combination of a fibre taper cascaded with a fibre LPG is presented. It is also demonstrated that such a structure can be applied for the implementation of a fibre optic inclinometer sensor. © 2006 Optical Society of America.

Abstract
A phase-shifted long-period fiber grating sensor fabricated by electric arc technique is used to measure bending curvature and temperature. © 2006 Optical Society of America.

Abstract
An optical fibre intensity sensor referenced by stimulated Brillouin scattering is presented. The sensor uses Fresnel reflection at the sensor fibre end and employs an adequate relationship between Brillouin and Rayleigh scattering and Fresnel reflection. © 2006 OSA/OFS 2006.