Results 31 to 40 of about 4,697 (230)
Perimeter System Based on a Combination of a Mach-Zehnder Interferometer and the Bragg Gratings
Advances in Electrical and Electronic Engineering, 2016 Fiber optic interferometers and Bragg gratings belong to the group of very precise and sensitive devicesthat allow measuring very small deformation, temperature or vibration changes.
Marcel Fajkus +5 more
doaj +1 more source
Silicon graphene Bragg gratings
Optics Express, 2014 We propose the use of interleaved graphene sections on top of a silicon waveguide to implement tunable Bragg gratings. The filter central wavelength and bandwidth can be controlled changing the chemical potential of the graphene sections. Apodization techniques are also presented.
Capmany, Jose +2 more
openaire +3 more sources
Graphene Bragg gratings on microfiber
Optics Express, 2014 Graphene Bragg gratings (GBGs) on microfiber are proposed and investigated in this paper. Numerical analysis and simulated results show that the mode distribution, transmission loss, and central wavelength of the GBG are controllable by changing the diameter of the microfiber or the refractive index of graphene.
B C, Yao +9 more
openaire +2 more sources
Modelling of Photonic Wire Bragg Gratings [PDF]
Optical and Quantum Electronics, 2006 Some important properties of photonic wire Bragg grating structures have been investigate. The design, obtained as a generalisation of the full-width gap grating, has been modelled using 3D finite-difference time-domain simulations. Different types of stop-band have been observed.
M. Gnan +4 more
openaire +3 more sources
Nonreciprocal waveguide Bragg gratings
Optics Express, 2005 The use of a complex short-period (Bragg) grating which combines matched periodic modulations of refractive index and loss/gain allows asymmetrical mode coupling within a contra-directional waveguide coupler. Such a complex Bragg grating exhibits a different behavior (e.g.
Mykola, Kulishov +4 more
openaire +2 more sources
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
Etched Polymer Fibre Bragg Gratings and Their Biomedical Sensing Applications
Sensors, 2017 Bragg gratings in etched polymer fibres and their unique properties and characteristics are discussed in this paper. Due to the change in material and mechanical properties of the polymer fibre through etching, Bragg gratings inscribed in such fibres ...
Ginu Rajan +3 more
doaj +1 more source
TILTED FIBER BRAGG GRATING SENSORS FOR REFRACTIVE INDEX MEASUREMENTS OF LIQUID SOLUTIONS
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2022 This publication presents the basic assumptions about the light guiding mechanisms in tilted fiber Bragg gratings, transmission spectra of the fiber with such structures and their sensor properties related to the occurrence of the so-called cladding ...
Damian Harasim
doaj +1 more source
Advanced Functional Materials, EarlyView.Sea cucumber mutable collagenous tissue (MCT) is a remarkable collagen‐based material which can rapidly undergo large changes in stiffness through transiently bound effector proteins. Here, we investigate the hierarchical structure and mechanical response of MCT from Cucumaria frondosa across length scales with a wide range of methods, also exploring ...
Nathalie R. H. Singh +7 more
wiley +1 more source
Results in Physics, 2019 This paper enumerates optical solitons and other solutions in fiber Bragg gratings having dispersive reflectivity with parabolic form of nonlinearity. The new Jacobi elliptic functions expansion has been utilized to achieve this goal.
Elsayed M.E. Zayed +5 more
doaj +1 more source