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 …

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

One of the efficient techniques to enhance the sensitivity of optical fiber sensor is to utilize
Vernier effect. However, the complex system structure, precisely controlled device …

In order to break through the accuracy limits of traditional processing technology and
research microscopic phenomena, the sensing structures are fabricated by femtosecond (fs) …

Hollow-core fibre (HCF) is a powerful technology platform offering breakthrough
performance improvements in sensing, communications, higher-power pulse delivery and …

Fiber‐optic sensing is resistant to electromagnetic interference; therefore, electromagnetic
field sensing using fiber‐optic sensors is challenging. Herein, the first demonstration of fiber …

This study presented a novel shape photonic crystal fiber based gas sensor for the first time.
Perfectly circular shape air hole are arranged to form core and cladding region. Based on …

A simple, ultra compact and highly sensitive photonic crystal fiber interferometer (PCFI) for
external refractive index (ERI) sensing was proposed and demonstrated in this paper. The …

A simple, cost effective high-temperature sensor (up to 1000° C) based on a hollow core
fiber (HCF) structure is reported. It is configured by fusion splicing a short section of HCF …

A high-sensitivity Fabry-Perot interferometer (FPI) strain sensor based on a concave-core
photonic crystal fiber (CPCF) was proposed and demonstrated. The FPI was formed by …