Raman distributed optical fiber sensing has been demonstrated to be a mature and versatile
scheme that presents great flexibility and effectivity for the distributed temperature …

The aim of this paper is to provide a comprehensive review of mode-division and spatial-
division optical fiber sensors, mainly encompassing interferometers and advanced fiber …

An ultra-sensitive sensor, based on two Fabry–Perot interferometers (FPIs), has been
realized for temperature and pressure sensing. A polydimethylsiloxane (PDMS)-based …

A compact, low loss, and highly sensitive optical fiber curvature sensor is presented. The
device consists of a few-millimeter-long piece of seven-core fiber spliced between two single …

A miniaturized tip Fabry-Perot interferometer (tip-FPI) is proposed for high-temperature
sensing. It is simply fabricated for the first time by splicing a short length of microfiber (MF) to …

In this paper, a review of multicore fiber interferometric sensors is given. Due to the
specificity of fiber structure, ie, multiple cores integrated into only one fiber cladding …

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 …

We report a high-resolution fiber optic temperature sensor system based on an air-filled
Fabry–Pérot (FP) cavity, whose spectral fringes shift due to a precise pressure variation in …

Twin-core fiber (TCF)-based sensor was proposed for non-invasive vital sign monitoring,
including respiration and heartbeat. The TCF was homemade and the corresponding sensor …

Multi-port beam splitters are cornerstone devices for high-dimensional quantum information
tasks, which can outperform the two-dimensional ones. Nonetheless, the fabrication of such …