Results 31 to 40 of about 138,061 (301)

Quantitative sensitivity analysis of surface attached optical fiber strain sensor [PDF]

open access: yes, 2014
Optical fiber strain sensors, in particular, the fiber Bragg grating (FBG) type, are widely applied in different applications. The most common installation method is surface-attached.
Wan, KT
core   +1 more source

Optical sensing by exposed core fiber using self-written waveguide [PDF]

open access: yes, 2017
Recently, the importance of the optical fiber is increasing particularly in sensing application. Thus, this paper proposes optical sensing by exposed core fiber technology using Self-Written Waveguide (SWW) method. SWW method is fabrication of an optical
Ahmad, Fauzan   +7 more
core   +1 more source

High Sensitivity Photon Pressure Sensitive Skin of Piercing Robot Based on Balloon-Shaped Fiber Optic Sensor

open access: yesIEEE Access
In this paper, a photonic skin sensor based on a balloon-shaped optical fiber structure cascading a Fiber Bragg Grating (FBG) is proposed, which can simultaneously sense pressure and temperature.
Meng Jiao Chi   +7 more
doaj   +1 more source

Tilted fiber Bragg gratings in multicore optical fibers for optical sensing [PDF]

open access: yesOptics Letters, 2017
We have inscribed a tilted fiber Bragg grating (TFBG) in selected cores of a multicore optical fiber. The presence of the TFBG permits to couple light from the incident-guided mode to the cladding modes and to the neighbor cores, and this interaction can be used for optical sensing.
Barrera Vilar, David|||0000-0002-1700-6842   +2 more
openaire   +4 more sources

Rayleigh Fading Suppression in One-Dimensional Optical Scatters

open access: yesIEEE Access, 2019
A highly coherent wave is favorable for applications in which phase retrieval is necessary, yet a high-coherence wave is prone to encounter Rayleigh fading phenomenon as it passes through a medium of random scatters.
Shengtao Lin   +8 more
doaj   +1 more source

Research on hole edge crack monitoring based on optical fiber gratings and BP neural network

open access: yesHangkong gongcheng jinzhan, 2023
The hole edge crack monitoring of metal structures with holes is of great significance for ensuring flight safety and enhancing the reliability of aircraft structures.
YU Chong   +4 more
doaj   +1 more source

Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]

open access: yes, 1999
Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Ashwell, Geoffrey J.   +3 more
core   +1 more source

FE tool for drape modelling and resin pocket prediction of fully embedded optical fiber sensor system [PDF]

open access: yes, 2015
This work highlights some of the achievements obtained within the EU FP7 SmartFiber project, aiming to develop a fully embeddable optical fiber sensor system including the interrogator chip.
Ahmed, Tahira   +9 more
core   +2 more sources

Fabrication of rGO-GO Long Period Fiber Grating Using Laser Reduction Method

open access: yesIEEE Photonics Journal, 2017
A laser-reduction technique is investigated to fabricate a novel long period fiber grating (LPFG), whose period is a section of graphene oxide (GO) and reduced graphene oxide (rGO) films on a side polished fiber.
Liheng Chen   +9 more
doaj   +1 more source

Parity-time symmetry in wavelength space within a single spatial resonator

open access: yesNature Communications, 2020
Most conventional PT-symmetric systems contain two physically separated modes. Here the authors proposed a PT-symmetric microwave optoelectronic oscillator, where the gain and loss modes are confined in a single spatial resonator, resulting in an ...
Jiejun Zhang   +5 more
doaj   +1 more source

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