Results 21 to 30 of about 8,586 (282)

Ultra-low Brillouin scattering in anti-resonant hollow-core fibers

open access: yesAPL Photonics, 2020
Sensitive optical experiments in fiber, including for applications in communications and quantum information, are limited by the noise generated when light scatters from thermally excited guided-acoustic phonons.
Arjun Iyer   +4 more
doaj   +1 more source

Optical Bend Sensor Based on Eccentrically Micro-Structured Multimode Polymer Optical Fibers

open access: yesIEEE 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

Robust low loss splicing of hollow core photonic bandgap fiber to itself [PDF]

open access: yes, 2013
Robust, low loss (0.16dB) splicing of hollow core photonic band gap fiber to itself is presented. Modal content is negligibly affected by splicing, enabling penalty-free 40Gbit/s data transmission over > 200m of spliced ...
Gray, D.R.   +6 more
core   +1 more source

Photonic Crystal Mikaelian Lenses and Their Potential Use as Transverse Focusing Elements in Microstructured Fibers

open access: yesIEEE Photonics Journal, 2013
We numerically studied the focusing properties of a special type of graded index photonic crystal media, i.e., the so-called photonic crystal Mikaelian lenses (PCMLs). We considered PCMLs with a varying air hole diameter and with a varying air hole pitch
T. Baghdasaryan   +3 more
doaj   +1 more source

Index matching between passive and active tellurite glasses for use in microstructured fiber lasers: Erbium doped lanthanum-tellurite glass [PDF]

open access: yes, 2009
Active and passive variants of La-containing tellurite glasses have been developed with matched refractive indices. The consequences of adding lanthanum to the glass was studied through measurements of the crystallization stability, glass viscosity and ...
Birks   +23 more
core   +1 more source

Antiguiding in microstructured optical fibers

open access: yesOptics Express, 2004
Antiguiding, as opposed to positive index-contrast guiding (or index-guiding), in microstructured air-silica optical fibers is shown to have a significant influence on the fiber's transmission property, especially when perturbations exist near the defect core.
M, Yan, P, Shum
openaire   +2 more sources

Vapor Sensing with Polymer Coated Straight Optical Fiber Microtapers Based on Index Sensitive Interference Spectroscopy of Surface Stress Birefringence

open access: yesSensors, 2020
Optical microfiber tapers provide an advantageous platform for sensing in aqueous and gas environments. We study experimentally the photonic transmission in optical fiber tapers coated with polymethyl methacrylate (PMMA), a polymeric material widely used
Alexandra Blank   +2 more
doaj   +1 more source

Coherent mid-infrared supercontinuum generation in tellurite all-solid microstructured optical fibers with anomalous and normal dispersion property

open access: yesResults in Optics, 2023
Tellurite all-solid hybrid microstructured optical fibers (ASHMOFs) can be used to generate supercontinua with broad bandwidths in both anomalous and normal dispersion regimes. In the anomalous dispersion regime, a supercontinuum spectrum from 1.1 to 6.7 
Thu Kieu Phan   +3 more
doaj   +1 more source

Advances in infrared and imaging fibres for astronomical instrumentation [PDF]

open access: yes, 2006
Optical fibres have already played a huge part in ground based astronomical instrumentation, however, with the revolution in photonics currently taking place new fibre technologies and integrated optical devices are likely to have a profound impact on ...
Haynes, Roger   +3 more
core   +2 more sources

Microstructured Optical Fiber Sensors Embedded in a Laminate Composite for Smart Material Applications

open access: yesSensors, 2011
Fiber Bragg gratings written in highly birefringent microstructured optical fiber with a dedicated design are embedded in a composite fiber-reinforced polymer.
Hugo Thienpont   +13 more
doaj   +1 more source

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