Slow light with flat or offset band edges in multi-mode fiber with two gratings
We consider mode coupling in multimode optical fibers using either two Bragg gratings or a Bragg grating and a long-period grating. We show that the magnitude of the band edge curvature can be controlled leading to a flat, quartic band-edge or to two ...
de Sterke, C. Martijn +3 more
core +1 more source
Cure monitoring of a UV cured epoxy resin using a long period grating Mach- Zehnder interferometer [PDF]
A cascaded long period grating Mach-Zehnder interferometer is used to monitor the change in refractive index of a UV cured epoxy resin over a cure cycle.
Buggy, Stephen J. +3 more
core +1 more source
Properties of length-apodized phase-shifted lpgs operating at the phase matching turning point
The characteristics of length-apodized phase-shifted fiber optic long period gratings with full and partial nanostructured coatings have been explored theoretically and experimentally.
James, Stephen W. +2 more
core +1 more source
A simple method for fabricating phase-shifted fibre Bragg gratings with flexible choice of centre wavelength [PDF]
A simple technique for fabricating phase-shifted fibre Bragg gratings (PSFBGs) without the use of a phase-shifted phase mask is presented. Two, 3-mm long, standard fibre Bragg gratings (FBGs) were inscribed sequentially in singlemode fibre at the same
Chehura, Edmon +2 more
core +1 more source
Long Period Bragg Grating in Coaxial Transmission Lines
This work shows the utilization of a coaxial cable for the fabrication of a long period Bragg grating. The grating is fabricated removing the dielectric in short pieces of the cable so that the discontinuities account for the variation in the medium ...
Sergio Luiz Stevan Jr +4 more
doaj +1 more source
Fabrication of rGO-GO Long Period Fiber Grating Using Laser Reduction Method
A laser-reduction technique is investigated to fabricate a novel long period fiber grating (LPFG), whose period is a section of graphene oxide (GO) and reduced graphene oxide (rGO) films on a side polished fiber.
Liheng Chen +9 more
doaj +1 more source
Optical fibre long period grating spectral actuators utilizing ferrofluids as outclading overlayers [PDF]
Results are presented on the spectral tuning of optical fibre long period gratings utilizing water and oil based ferrofluids as outclading overlayers, under static magnetic field stimulus.
Konstantaki Maria +2 more
doaj +1 more source
Optical Response of Grating-Coupler-Induced Intersubband Resonances: The Role of Wood's Anomalies
Grating-coupler-induced collective intersubband transitions in a quasi-two-dimensional electron system are investigated both experimentally and theoretically.
Berger, A. +7 more
core +1 more source
Sensitive protein detection using an optical fibre long period grating sensor anchored with silica core gold shell nanoparticles [PDF]
Copyright ©2014 Society of Photo-Optical Instrumentation Engineers. This paper was published in the Proceedings of SPIE and is made available with permission of SPIE. One print or electronic copy may be made for personal use only.
Clark, M. +6 more
core +1 more source
Characterization of Long-period Grating Refractive Index Sensors and Their Applications
The influence of grating length and bend radius of long-period gratings (LPGs) on refractive index sensing was examined. Sensitivity to refractive indexes smaller than that of silica could be enhanced by bending LPGs.
Kei Urabe, Hiroshi Tsuda
doaj +1 more source

