Results 31 to 40 of about 56,321 (268)
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
Advances in Mechanical Engineering, 2017 The adhesive-bonded joint of carbon fiber–reinforced plastic is one of the core components in aircraft structure design. It is an effective guarantee for the safety and reliability of the aerospace aircraft structure to use effective methods for ...
Song Chunsheng +4 more
doaj +1 more source
New multiplexing scheme for monitoring fiber optic Bragg grating sensors in the coherence domain
, 1997 A new multiplexing scheme for monitoring fiber optic Bragg gratings in the coherence domain has been developed. Grating pairs with different grating distances are distributed along a fiber line, and interference between their reflections is monitored ...
Dakin, J.P. +5 more
core +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
Sensors, 2020 This article proposes and demonstrates a robust microstructure-based fiber-to-chip coupling scheme for planar Bragg grating devices. A polymer planar Bragg grating substrate is manufactured and microstructured by means of a micromilling process, while ...
Stefan Kefer +4 more
doaj +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
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
Fiber Bragg grating vacuum sensors [PDF]
, 2005 This letter demonstrates functional enhancements of fiber Bragg grating sensors powered by in-fiber light. High-power laser light transmitted in double-clad optical fiber was extracted from the fiber core to heat an on-fiber metal coating. When the power-
Buric, M +5 more
core +1 more source
Advanced Functional Materials, EarlyView.A 3D bone scaffold with osteogenic properties and capable of hardening in vivo is developed. The scaffold is implanted in a ductile state, and a phase transformation of the ceramic induces the stiffening and strengthening of the scaffold in vivo. Abstract Calcium phosphate 3D printing has revolutionized customized bone grafting.
Miguel Mateu‐Sanz +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