Short-period fiber Bragg gratings with weakly tilted grating planes generate multiple strong
resonances in transmission. Our experimental results show that the wavelength separation …

An optical fiber sensor based on a fiber surface waveguide and Bragg grating is proposed
for a simultaneous refractive index (RI) and temperature sensing. The device consists of two …

A single-mode tapered fiber optic biosensor was utilized for real-time monitoring of the
Escherichia coli (E. coli K-12) growth in an aqueous medium. The applied fiber tapers were …

A novel miniature fiber-optic Fabry-Perot (FP) refractive-index (RI) sensor machined by 157
nm laser is proposed. The sensor head consists of a micro air FP cavity near the tip of a …

We demonstrate a sensitive DNA biosensor based on a long period grating (LPG) formed by
a photolithograph process on the surface of a side-polished fiber. The biomolecules of the …

We report a simple and robust fiber specklegram refractive index sensor with a multimode
fiber-single mode fiber-multimode fiber structure based on focused ion beam milling. In this …

A single-mode non-adiabatic tapered optical fiber (NATOF) sensor was utilized for sensing
the variation in refractive index (RI) with concentration of d-glucose in deionized water and …

A reflective multimode interference based-fiber optic sensor is described, aimed at
measuring refractive index variations by means of intensity variation based on the fiber tip …

We propose a novel way to enhance the sensitivity of single-mode-multimode-single-mode
(SMS) fiber structure in the measurement of surrounding refractive index (RI), which is …

Measurement of refractive index (RI) is required in laboratory and industry for many
applications, especially that of liquids. Though there have been commercial products for …