Results 41 to 50 of about 40,631 (247)
Optical Bend Sensor Based on Eccentrically Micro-Structured Multimode Polymer Optical Fibers
IEEE Photonics Journal, 2021 We report on a novel bend sensor with high flexibility and elasticity based on Bragg grating structures in polymer optical fibers to detect bending for the measurement of movement.
Lennart Leffers +4 more
doaj +1 more source
Phase modulation technique for high modulation wide band planar Bragg grating fabrication [PDF]
, 2013 Direct UV Grating Writing (DGW) is effective route for fabricating high quality Bragg gratings, similar to fiber Bragg gratings, in a planar geometry. We will present a phase modulation controlled DGW method using an Electro-Optical Modulator for planar ...
Gates, J.C. +6 more
core +1 more source
Polymer Fiber Bragg Gratings [PDF]
, 2011 This chapter deals with gratings recorded in polymeric optical fibers (POFs); predominantly those based on poly (methyl methacrylate) (PMMA). We summarize the different mechanical and optical properties of POFs which are relevant to the application of POF Bragg gratings and discuss the existing literature on the subject of the UV photosensitivity of ...
null David John Webb +1 more
openaire +1 more source
Klein tunneling of light in fiber Bragg gratings [PDF]
, 2010 A photonic analogue of Klein tunneling (KT), i.e. of the exotic property of relativistic electrons to pass a large repulsive and sharp potential step, is proposed for pulse propagation in a nonuniform fiber Bragg grating with an embedded chirped region ...
Longhi, Stefano
core +3 more sources
Advanced Healthcare Materials, EarlyView.Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou +4 more
wiley +1 more source
Resonant THz sensor for paper quality monitoring using THz fiber Bragg gratings
, 2013 We report fabrication of THz fiber Bragg gratings (TFBG) using CO2 laser inscription on subwavelength step-index polymer fibers. A fiber Bragg grating with 48 periods features a ~4 GHz-wide stop band and ~15 dB transmission loss in the middle of a stop ...
Bock, Wojtek J. +5 more
core +1 more source
Sensitivity enhancement of fiber Bragg gratings to transverse stress by using microstructural fibers [PDF]
, 2006 We present simulation and experimental results of fiber Bragg grating responses to transverse stress in microstructure fibers. The grating wavelength shifts and peak splits are studied as a function of external load and fiber orientation. Both simulation
Avdeev, IV +6 more
core +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
Study of Optical Fiber Sensors for Cryogenic Temperature Measurements
Sensors, 2017 In this work, the performance of five different fiber optic sensors at cryogenic temperatures has been analyzed. A photonic crystal fiber Fabry-Pérot interferometer, two Sagnac interferometers, a commercial fiber Bragg grating (FBG), and a π-phase ...
Veronica De Miguel-Soto +8 more
doaj +1 more source
Fiber Bragg grating application to study an unmanned aerial system composite wing [PDF]
, 2019 Structural health monitoring consists of structural integrity assessment by means of data acquisition and analysis from on-board sensors. Fiber Bragg grating–based monitoring is increasingly attracting the scientific community working on structural ...
Fernández, Rosario +3 more
core +1 more source