An elegant way of achieving an ultracompact optical fiber in-line Mach–Zehnder
interferometer is to create an inner air cavity in a section of microfiber. The sandwich …

In this paper, a CO_2 laser-induced long-period fiber-grating (LPFG) optic sensor was
packaged with a hybrid mechanism of elastic attachment and gauge length change for large …

A three-layer packaged structure is proposed for an extrinsic Fabry–Perot interferometer-
based optical fiber sensor in order to produce high resolution for large strains. The …

We propose and demonstrate a sensitive vector twist sensor based on a small period long
period fiber grating (SP-LPFG) fabricated with a femtosecond (fs) laser. The fabricated SP …

In this paper, we propose and experimentally investigate an optical sensor based on a novel
combination of a long-period fiber grating (LPFG) with a permanent magnet to measure …

We propose a strain sensor based on a long-period fiber grating (LPFG) packaged in a 3D-
printed structure made of polymer material. The proposed sensing structure was fabricated …

A compact optical fiber Mach-Zehnder interferometer (MZI) sensor is reported for
temperature and strain. The MZI sensor consists of a single-mode fiber (SMF), a seven core …

A method is proposed to minimize the effect of temperature on a long-period fiber grating
(LPG), enabling its effective use for the interrogation of wavelength-modulated fiber Bragg …

In the last years, mid-infrared radiation emitted by CO2 lasers has become increasing
popular as a tool in the development of long-period fiber gratings. However, although the …

Using the relationship between strain and thickness from the materials theory, this paper
presents further development of the atmospheric corrosion sensor based on strain …