Optical sensors are widely used for refractive index measurement in chemical, biomedical,
and food processing industries. Due to specific field distribution of the resonances, optical …

Fiber-optic sensors have developed rapidly because of their excellent sensing
performances and abilities to detect in remote and harsh environments. However, on some …

Fabry–Perot interferometers (FPIs) have found a multitude of scientific and industrial
applications ranging from gravitational wave detection, high-resolution spectroscopy, and …

A novel parallel structured fiber-optic Fabry-Perot interferometer (FPI) based on Vernier-
effect is theoretically proposed and experimentally demonstrated for ultrasensitive strain …

We demonstrated a high-sensitivity strain sensor based on an in-fiber Fabry–Perot
interferometer (FPI) with an air cavity, which was created by splicing together two sections of …

We report a highly sensitive fiber-optic sensor based on two cascaded intrinsic fiber Fabry-
Perot interferometers (IFFPIs). The cascaded IFFPIs have different free spectral ranges …

We investigated a novel and ultracompact polymer-capped Fabry-Perot interferometer,
which is based on a polymer capped on the endface of a single mode fiber (SMF). The …

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 …

We demonstrated a unique rectangular air bubble by means of splicing two sections of
standard single mode fibers together and tapering the splicing joint. Such an air bubble can …

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