A bending vector sensor based on a ring laser and super-mode interference in a seven-core
fiber (SCF) is presented. The super-mode interference is originated via a Mach–Zehnder …

This paper presents a systematic review concentrating on the design and extensive
applications of optical fiber sensors based on embedded long-period fiber gratings (LPFGs) …

A kind of dual-parameter sensor based on magnetic-fluid-coated nonadiabatic tapered
microfiber (NTF) cascaded with fiber Bragg grating (FBG) is proposed and experimentally …

A novel vector bend sensor based on side-grooved Long period grating (SG-LPG) inscribed
on eccentric core fiber (ECF) was proposed and investigated. The core of the ECF is close to …

Curvature measurement plays an important role in structural health monitoring, robot-pose
measuring, etc. High-resolution curvature measurement is highly demanded. In this paper …

We present the applications of a Vernier effect based on cascading two Mach–Zehnder
interferometers (MZIs) as a selectable comb filter and saturable absorber (SA) in an erbium …

Vector bending sensing has been consistently growing in many fields. A low-cost and high
sensitivity vector bending sensor based on a chirped long-period fiber grating (LPFG) with …

A high-sensitivity bending sensor based on dual-dip long period fiber gratings (LPFGs) in a
single-mode fiber is proposed. The length of the gratings is very short only 7.2 mm. The …

We propose a method for robust mode conversion between the two outer waveguides in a
three-waveguide coupler based on analogies with quantum population transfer. Depending …

Bending curvature measurement and bending direction identification are very important in
the field of mechanical engineering. This study aimed to realize the high sensitivity direction …