A force sensor apparatus includes a tube portion having a plurality of radial ribs and at least
one fiber optic strain gauge positioned over each of the plurality of radial ribs. The strain …

In one embodiment, a force sensor apparatus is provided including a tube portion having a
plurality of radial ribs and at least one fiber optic strain gauge positioned over each rib of the …

Fiber laser sensors have been present for almost four decades as versatile sensing devices
with a simple demodulation process, high sensitivity, and competitive resolution. This work …

A strain and temperature-sensing scheme based on a dual-wavelength fiber laser is
demonstrated experimentally. By measuring the change in the wavelength separation of the …

A novel multi-longitudinal-mode fiber ring laser temperature sensor based on the beat
frequency demodulation technology is presented. The beat frequency between any two …

This paper presents an axial strain laser sensing setup based on a core-offset Mach-
Zehnder interferometer (MZI). The core-offset MZI was implemented by fusion splicing of …

In one embodiment, a force sensor apparatus is provided including a tube portion having a
plurality of radial ribs and a strain gauge positioned over each of the plurality of radial ribs, a …

A novel and simple multi-wavelength linear-cavity tunable fiber laser source using a chirped
fiber Bragg grating (CFBG) and a few-mode fiber Bragg grating (FMFG) is demonstrated …

In this letter, a curvature sensing setup based on a fiber ring laser containing a long-period
fiber grating (LPFG) is presented. The LPFG operates as a wavelength selective filter and as …

A multiwavelength single-longitudinal-mode (SLM) Brillouin–erbium fiber laser sensor with
ultrahigh resolution is proposed and investigated experimentally. The one short common …