Results 101 to 110 of about 585 (197)

Distributed refractive index sensing with cascaded TFBGs via derivative spectrum analysis

open access: yesOptics Express
Tilted fiber Bragg gratings (TFBGs) are highly sensitive refractometric probes, but their broad cladding-mode spectra have long been considered incompatible with wavelength-division multiplexing. As a result, TFBG refractive-index sensors are generally restricted to single-point operation, despite their inherent advantages.
Zheng, Jieqing   +3 more
openaire   +2 more sources

Fiber Bragg gratings tapered vibration sensors: comparison and application in electric motors monitoring

open access: yes, 2016
This work presents results of a comparison of the responses to vibration sensors based on Bragg gratings in optical fiber, being a standard fiber G-652 (FBG) and others in the same fiber, but tapered (TFBG) with diameters of 60 micrometers and 80 ...
Pereira, Joel Gonçalves
core  

Highly sensitive detection of urinary protein variations using tilted fiber grating sensors with plasmonic nanocoatings

open access: yes, 2016
Surface plasmon resonance (SPR) optical fiber biosensors can be used as a cost-effective and relatively simple-to-implement alternative to well established bulky prism configurations for high sensitivity biological sample measurements.
Liu, Fu   +9 more
core   +1 more source

Specificity of NY-ESO-1 Antibody Detection Using TFBG Plasmonic Sensor

open access: yes
peer reviewedAutoantibodies against New York esophageal squamous cell cancer 1 (NY-ESO-1) are essential for diagnosing esophageal cancer. This study introduces a surface plasmonic tilted fiber Bragg grating (TFBG) biosensor designed to detect NY-ESO-1 ...
Xu, Yi-Wei   +5 more
core  

Directional Bend Sensor Based on Re-Grown Tilted Fiber Bragg Grating

open access: yes, 2010
—A novel fiber optic bend sensor is implemented by using a re-grown tilted fiber Bragg grating (TFBG) written in a small core single mode fiber with UV overexposure. The spectrum of the re-grown TFBG contrasts with that of normal TFBG by exhibiting large
Jacques Albert   +4 more
core   +1 more source

Reflective liquid level sensor based on modes conversion in thin-core fiber incorporating titled fiber Bragg grating

open access: yes, 2014
A simple and compact reflective liquid level sensor based on modes conversion in the thin-core fiber incorporating one tilted fiber Bragg grating (TFBG) is proposed and experimentally demonstrated.
Gu, Bobo   +5 more
core   +1 more source

Measurements of Milli-Newton Surface Tension Forces with Tilted Fiber Bragg Gratings

open access: yes, 2018
Small lateral forces (lower than 0.1 N) cannot normally be measured with conventional single-mode fiber-based sensors because of the high value of their Young modulus (>70 GPa).
Chuan Zhong   +19 more
core   +1 more source

Tilted Fiber Bragg Grating Sensors based on Time-Domain Measurements with Microwave Photonics

open access: yes
Tilted fiber Bragg gratings (TFBGs) have garnered substantial research attention and have found widespread applications for sensing a diverse array of physical, chemical, and biological parameters based on optical spectrum measurements. The interrogation
Li, Shiyu   +4 more
core   +1 more source

Cladding-Mode-Recoupling-Based Tilted Fiber Bragg Grating Sensor With a Core-Diameter-Mismatched Fiber Section

open access: yes, 2010
We demonstrate a reflective fiber-optic sensor with a core-diameter-mismatched fiber section and cladding-mode recoupling in a tilted fiber Bragg grating (TFBG). High-order cladding modes are efficiently excited by either a multimode fiber or a thin-core
Zhou, Bin   +3 more
core   +1 more source

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