Fiber gas sensing techniques have been applied for a wide range of industrial applications.
In this paper, the basic fiber gas sensing principles and the development of different fibers …

Optical fibre sensing technology is a powerful method for long‐term reliable sensing in
harsh environments, which means it is particularly suitable for the detection of electrical …

We report a compact mid-infrared (MIR) photothermal spectroscopic ethane (C_2H_6)
sensor with a hollow-core negative-curvature-fiber (HC-NCF) gas cell. The HC-NCF …

The global trends of urbanization and industrialization have given rise to critical
environmental and air pollution issues that often receive insufficient attention. Among the …

We demonstrated the sensitive CO detection in a novel hollow-core negative curvature fiber
(HC-NCF) with infrared laser absorption at 2.3 μm. The HC-NCF consists of a single ring of …

A highly sensitive, compact, and low-cost trace gas sensor based on photothermal effect in a
hollow-core fiber Fabry–Perot interferometer (FPI) is described. The Fabry–Perot sensor is …

Recent progress in gas detection with hollow-core microstructured optical fibers (HC-MOFs)
and direct absorption/photothermal interferometry spectroscopy are reported. For direct …

Gas detection with hollow-core photonic bandgap fibre (HC-PBF) and pulsed photothermal
(PT) interferometry spectroscopy are studied theoretically and experimentally. A theoretical …

We report a multicomponent gas sensor based on hollow-core fiber (HCF) photothermal
spectroscopy with frequency-division multiplexing (FDM). A single antiresonant HCF (AR …

In this paper we report a mid-infrared sensor based on an anti-resonant hollow core fiber. A
quantum cascade laser operating around 4.53 µm is used to target one of the strongest …