Results 11 to 20 of about 50,437 (257)

Design of Polarization-Maintaining FBGs Using Polyimide Films to Improve Strain-Temperature Sensing in CFRP Laminates

open access: yesIEEE Photonics Journal, 2021
Uniform Fiber Bragg Grating sensors based on Polarization-Maintaining fibers are designed for simultaneous longitudinal strain and temperature measurement of Carbon Fiber Reinforced Polymer laminates.
Andrea Annunziato   +4 more
doaj   +1 more source

Structural Health Monitoring of Adhesively Bonded Pipe-to-Socket Joints by Integration of Polymer Optical Fibers and Their Load-Dependent Transmission Properties

open access: yesSensors, 2023
Adhesively bonded pipe-to-socket joints are used in numerous industrial applications. One example is in the transport of media, e.g., in the gas industry or in structural joints for such sectors as construction, wind energy, and the vehicle industry.
Josef Weiland   +6 more
doaj   +1 more source

BER OPTIC SENSOR MODIFIED BY GRAFTING OF THE MOLECULARLY IMPRINTED POLYMER FOR THE DETECTION OF AMMONIUM IN AQUEOUS MEDIA [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2015
Subject of Research.The paper deals with novel chemical sensors based on the polymeric optical fibers modified by grafting of the molecularly imprinted polymer for the detection of ammonium in aqueous solutions.
N. Lopes,   +6 more
doaj   +1 more source

Underwater acoustic signal acquisition based on optical interferometry in shallow water [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
Here, it is investigated the results of the implementation of an interferometric optical fiber acoustic sensor based on fiber Bragg grating (FBG). It is investigated the importance of different types of interferometer configurations as Michelson or Mach ...
Aliasghar Abniki   +2 more
doaj   +1 more source

Measurements of stress-optic coefficient in polymer optical fibers [PDF]

open access: yesOptics Letters, 2010
We have systematically measured the differential stress-optic coefficient, DeltaC, in a number of poly(methyl methacrylate) (PMMA) fibers drawn with different stress, ranging from 2 up to 27 MPa. DeltaC was determined in transverse illumination by measuring the dependence of birefringence on additional axial stress applied to the fiber.
Szczurowski M.K.   +5 more
openaire   +2 more sources

GaN-Based Cyan Light-Emitting Diode with up to 1-GHz Bandwidth for High-Speed Transmission Over SI-POF

open access: yesIEEE Photonics Journal, 2017
We demonstrate the performance of a novel cyan light-emitting diode (LED) on a patterned sapphire substrate for use as a light source for plastic optical fiber (POF) communications with the central wavelength at 500 nm.
Juri Vinogradov   +7 more
doaj   +1 more source

Temperature Sensitivity of Polymer Fiber Microlasers

open access: yesPhotonic Sensors, 2022
There are many kinds of materials or methods used to make optical microcavities, and they have many different geometric structures. And electrospinning technique has become a very convenient and easy one to prepare polymer fiber. Based on this situation,
Chun Wang   +5 more
doaj   +1 more source

Novel Model for the Angle and Skewness Dependent Transmission Behavior of Step-Index Polymer Optical Fiber

open access: yesFibers, 2018
Step-index polymer optical fibers (SI-POFs) are deployed in both sensing and data transmission systems. The optical transmission behavior of these fibers is complex and affected by intrinsic influences like modal dispersion, scattering and attenuation as
Thomas Becker   +2 more
doaj   +1 more source

Optical Fiber Integrated Functional Micro-/Nanostructure Induced by Two-Photon Polymerization

open access: yesFrontiers in Materials, 2020
Owing to the limitation of optical fiber materials and conventional fabrication methods, the development of optical fiber devices has encountered a bottleneck.
Cong Xiong   +13 more
doaj   +1 more source

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