Photonic crystal fibers are a kind of fiber optics that present a diversity of new and improved
features beyond what conventional optical fibers can offer. Due to their unique geometric …

As a clean and sustainable energy source, hydrogen gas is highly demanded in industrial
and commercial fields. Accordingly, the swift and accurate detection of hydrogen gas is …

Photonic crystal fiber sensors have potential application in environmental monitoring,
industry, biomedicine, food preservation, and many more. These sensors work based on …

Microstructured optical fibers, including not only photonic crystal fibers but also new types of
fiber with different configurations on the cross section, are elaborately designed and they …

We demonstrate a fiber in-line Mach–Zehnder interferometer based on an inner air-cavity
with open micro-channel for high-pressure sensing applications. The inner air-cavity is …

An ultrasensitive optical fiber sensor based on the optical Vernier effect is proposed for the
simultaneous measurement of axial strain and temperature. The sensor structure comprises …

We have demonstrated a high-sensitivity strain sensor based on a novel photonic crystal
fiber (PCF) interferometer by means of splicing two sections of thin core fibers (TCF) with a …

We report on the use of a multi-core fibre (MCF) comprising strongly-coupled cores for
accurate strain sensing. Our MCF is designed to mode match a standard single mode optical …

We have proposed a high sensitive photonic crystal fiber (PCF) strain sensor based on the
Mach-Zehnder interferometer (MZI). The sensing head is formed by all-fiber in-line single …

We experimentally demonstrated a strain sensor based on fiber ring cavity laser with a
photonic crystal fiber (PCF) in-line Mach–Zehnder interferometer (MZI) structure, which is …