High-quality optical fibers can be produced now at a low cost and large quantity, and this
has further promoted the development of fiber-optic (chemical) sensors. After over 30 years …

Hydrogen is regarded as the ultimate fuel and energy carrier with a high theoretical energy
density and universality of sourcing. However, hydrogen is easy to leak and has a wide …

We present an optical fiber gas pressure sensor based on two cascaded Fabry-Perot
interferometer cavities, one is a section of capillary tube spliced with single mode fiber at its …

The exploration of novel polymers for temperature sensing with high sensitivity has attracted
tremendous research interest. Hence, we report a polystyrene-coated optical fiber …

Palladium-based hydrogen sensors have been typically studied due to the dielectric function
that changes with the hydrogen concentration. However, the development of a reliable …

A compact fiber optic hydrogen sensing system employing self-referenced configuration and
controllable light heating technologies, is proposed and experimentally demonstrated with …

The conventional optical fiber sensors based on hollow-core fiber (HCF) are suitable for
high-temperature measurement. However, the limit effect of HCF's air core on transmission …

In this paper, four kinds of microfiber ball structure of different sizes, such as 330, 340, 350,
and 360 µm were fabricated by single-mode fiber and multimode fiber, respectively. To test …

Self-referenced demodulating methods of fiber optic hydrogen sensors based on WO_3–
Pd_2Pt–Pt composite film are studied in this paper. By employing the proper baseline …

In this study, we introduce a new approach to fabricating fiber optic microlenses using a
three-electrode arc fusion splicer. Through beam propagation method-based simulations …