Environmental monitoring has become essential in order to deal with environmental
resources efficiently and safely in the realm of green technology. Environmental monitoring …

With the invention of chirped pulse amplification for lasers in the mid-1980s, high power
ultrafast lasers entered into the world as a disruptive tool, with potential impact on a broad …

A Mach-Zehnder interferometer (MZI) based fiberoptic refractive index (RI) sensor is
constructed by uniformly tapering standard single mode fiber (SMF) for RI measurement. A …

Femtosecond (fs) laser pulses direct writing technology has been extensively employed to
achieve microfabrication in various optical fibers for a broad range of applications. In this …

Long period fiber gratings produced by the electric arc technique have found an increasing
interest by the scientific community due to their ease to fabricate, virtually enabling the …

We investigated and prepared a chirped long-period grating for high sensitivity bending
measurement. The novel fiber structure is composed of the multimode fiber (MMF) with fixed …

Miniaturized Mach-Zehnder interferometer (MZI) is constructed using sharply tapered
photonic crystal fiber (PCF) for highly sensitive ambient refractive index (RI) measurement …

We report, for the first time, the use of a fiber optic Mach-Zehnder interferometer to measure
core refractive index changes written by an ultrafast laser irradiation. The core-offset …

In this letter, we present a new structure composed by a long-period grating (LPG) and a
microsphere in series, which works as a modal interferometer besides allowing the mode …

A femtosecond laser raster-type in situ repetitive direct writing technique was used for the
fabrication of anti-reflective microhole structures in Germanium (Ge) in the visible near …