Optical fiber gratings (OFGs), especially long-period gratings (LPGs) and etched or tilted
fiber Bragg gratings (FBGs), are playing an increasing role in the chemical and biochemical …

During the last decades, both governments and companies have been committed to the
continuous checking of biological parameters, which can prevent extra costs to …

Fiber optic label-free biosensors are currently experiencing wide diffusion, as they combine
the performance of optical measurements with the advantages of optical fiber. This paper …

The integration of metasurfaces on the tip of optical fibers enables advanced wavefront
manipulations in Lab‐on‐Fiber application scenarios, and brings about new degrees of …

A novel, high sensitivity Sagnac-interferometer biosensor based on exposed core
microstructured optical fiber (ECF) has been designed and implemented in this paper. The …

With COVID-19 widespread worldwide, people are still struggling to develop faster and more
accurate diagnostic methods. Here we demonstrated the label-free detection of SARS-CoV …

An evanescent wave optical fiber biosensor based on titania–silica-coated long period
grating (LPG) is presented. The chemical overlay, which increases the refractive index (RI) …

Optical fiber biosensors (OFBS) are being increasingly proposed due to their intrinsic
advantages over conventional sensors, including their compactness, potential remote …

Optical fibre gratings have recently been suggested as optical platforms for chemical and
biochemical sensing. On the basis of the measurement of refractive index changes induced …

In this work, we report about an ultrasensitive fiber optic biosensor realized using a single-
ended Long Period Grating (LPG). The LPG working point is tuned in the highest sensitivity …