This review summarizes principles and current stage of development of fiber-optic chemical
sensors (FOCS) and biosensors (FOBS). Fiber optic sensor (FOS) systems use the ability of …

Fiber-optic extrinsic Fabry–Perot (EFPI) sensors have been successfully used for a wide
range of applications. The recent progress in EFPI sensors is reviewed in this paper. First …

This paper presents a systematic review of long period fiber gratings (LPFGs) written by the
CO 2 laser irradiation technique. First, various fabrication techniques based on CO 2 laser …

We have proposed and experimentally demonstrated an ultrasensitive fiber-optic
temperature sensor based on two cascaded Fabry-Perot interferometers (FPIs). Vernier …

Optical measurement of mechanical parameters is gaining significant commercial interest in
different industry sectors. Torsion, twist and rotation are among the very frequently measured …

A long-period fiber-grating sensor with a high strain sensitivity of− 7.6 pm/με and a low
temperature sensitivity of 3.91 pm/° C is fabricated by use of focused CO_2 laser beam to …

This paper reviews a wide variety of fiber-optic microstructure (FOM) sensors, such as fiber
Bragg grating (FBG) sensors, long-period fiber grating (LPFG) sensors, Fabry-Perot …

Purpose The purpose of this study aims to simulate the long-period fiber grating sensor
pulse peak position against the transmission range. The long-period fiber grating sensor …

A novel long period fiber-grating (LPFG) sensor that can not only measure curvature directly,
but also determine every bend-direction within the circular range of 0/spl deg/-360/spl deg …

We demonstrate the fabrication of the helical long-period grating (HLPG) in a two-mode fiber
(TMF) with CO 2 laser. The torsion characteristics of the helical gratings are experimentally …