Results 21 to 30 of about 9,626 (268)

Photonic Filters Using Optical Retarders Based on Birefringent Optical Media

open access: yesRevista de Ciencias, 2015
Photonic filters can be used for filtering the spectrum of wide-band optical sources such as light emitting diodes (LED)  or multimode laser diodes(MMLD).
Joel Santos Aguilar   +1 more
doaj   +1 more source

On-fringe optical trapping of dielectric microparticles in air [PDF]

open access: yesEPJ Web of Conferences
Optical trapping in air of dielectric micro-spheres is reported using a dual fiber optical tweezers. The spheres are trapped on the interference fringes created by the two counter-propagating optical trapping beams.
Magguilli Clémence, Fick Jochen
doaj   +1 more source

Stress Analysis of Polarization Maintaining Optical Fibers by the Finite Element Method

open access: yesInternational Islamic University Malaysia Engineering Journal, 2012
Stress-induced birefringence in single mode polarization maintaining optical fibers has been investigated using the finite element method. The modal birefringence caused by external forces in the Panda and the Side Tunnel fibers are calculated.
M. H. Aly A. S. Farahat, M. S. Helmi and M. Farhoud
doaj   +1 more source

Distributed Birefringence Measurement of a Polarization-Maintaining Fiber With an Extended Range Based on an Enhanced Brillouin Dynamic Grating

open access: yesIEEE Photonics Journal, 2020
A distributed birefringence measurement of a polarization-maintaining fiber (PMF) can be realized by using a Brillouin dynamic grating (BDG). However, the pump depletion decreases the intensity of the BDG along the PMF and limits the measurement range to
Taofei Jiang   +5 more
doaj   +1 more source

Application of Crossed Polarizer Method in the Measurement of Differential Group Delay of Optical Fibers

open access: yesPhotonics, 2023
In this paper, we report the use of crossed polarizer technique to measure the differential group delay (DGD) of few-mode optical fiber (FMF). The windowed Fourier transform (WFT) is applied in the analysis of beat length measurement in the spectral ...
Cheng Wu   +7 more
doaj   +1 more source

A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope

open access: yesSensors, 2020
In this paper, a novel optical approach to double the sensitivity to angular rate of interferometric fiber optic gyroscope (IFOG) is proposed. Two fiber polarization combiner/splitters (FPCSs), as the key components, are added in the traditional IFOG ...
Dengwei Zhang, Cui Liang, Nan Li
doaj   +1 more source

Selectively toluene-filled photonic crystal fiber Sagnac interferometer with high sensitivity for temperature sensing applications

open access: yesResults in Physics, 2019
In this paper, we theoretically and numerically investigate toluene-filled polarization maintaining photonic crystal fibers (PMPCFs) for temperature sensing application via Sagnac interferometer. We designed a PMPCF with a birefringence of 8.68 × 10−5, a
Yashar E. Monfared   +4 more
doaj   +1 more source

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

Intravascular polarization-sensitive optical coherence tomography based on polarization mode delay

open access: yesScientific Reports, 2022
Intravascular polarization-sensitive optical coherence tomography (IV-PSOCT) provides depth-resolved tissue birefringence which can be used to evaluate the mechanical stability of a plaque.
Yan Li   +4 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

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