Results 11 to 20 of about 735,136 (286)

Tapered GRIN fiber microsensor [PDF]

open access: yesOptics Express, 2014
The sensitivity of an optical fiber microsensor based on inter-modal interference can be considerably improved by tapering a short extension of the multimode fiber. In the case of Graded Index fibers with a parabolic refractive index profile, a meridional ray exhibits a sinusoidal path.
Felipe, Beltrán-Mejía   +2 more
openaire   +3 more sources

Tapered optical fibre sensors employing nanostructured coatings [PDF]

open access: yes, 2010
Tapered optical fibres have been manufactured, characterised and studied. These are compact devices made from single-mode optical fibre. A system for producing tapers has been developed, employing flame heating of the optical fibre and computer ...
Jarzebinska, Renata
core   +7 more sources

Investigation on characteristic of LED power density via tapered fiber

open access: yesMaterials Research Express, 2022
In this paper, a tapered fiber for improving the power density of the Light Emitting Diode (LED) was designed. Numerical simulation showed that the tapered fiber makes the LED diverging light sources converge on the microscopic area, which makes the LED ...
Mengqiang Li   +4 more
doaj   +1 more source

Tapered silicon optical fibers [PDF]

open access: yesOptics Express, 2010
The tapering of silicon optical fibers is demonstrated using a fusion splicer. The silicon fibers are fabricated using a high pressure chemical deposition technique to deposit an amorphous silicon core inside a silica capillary and the tapering is performed in a separate post-process.
Healy, N.   +4 more
openaire   +3 more sources

Chalcogenide glass-tapered fiber sensor modified by graphene oxide doped with platinum nanoparticles for high-sensitivity measurement

open access: yesResults in Physics, 2023
An innovative Ge15Sb20Se65 glass tapered fiber sensor functionalized by graphene oxide (GO) doped with platinum nanoparticles (Pt) for ethanol monitoring is proposed.
Xiaomei Wang, Chaoqi Wang, Shixun Dai
doaj   +1 more source

Analysis of Confinement in Dual Spherical-Tapered Ended Fiber Optical Trap

open access: yesApplied Sciences, 2022
In dual-fiber optical traps, two counter-propagating laser beams emitted from opposing laser fibers trap and manipulate particles. We describe the operation and performance of a dual-fiber optical trap created using spherical-tapered ended fiber ...
Haining Feng   +6 more
doaj   +1 more source

Flexible minimally invasive coherent anti-Stokes Raman spectroscopy (CARS) measurement method with tapered optical fiber probe for single-cell application

open access: yesPhotoniX, 2022
We proposed and demonstrated a flexible, endoscopic, and minimally invasive coherent anti-Raman Stokes scattering (CARS) measurement method for single-cell application, employing a tapered optical fiber probe. A few-mode fiber (FMF), whose generated four-
Tong Wang   +6 more
doaj   +1 more source

Theoretical Study of Novel Microfiber-Typed Tunable Optical Attenuator

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2020
In this study, a new type of micro-nano fiber tunable optical attenuator is studied, and the model of micronano fiber probe coupler is designed with its help.
JI Yancheng; CHEN Yupei; SUN Dan; DUAN Wei
doaj   +1 more source

Spatial Beam Self-Cleaning in Bi-Tapered Multimode Fibers

open access: yesPhotonics, 2021
We report the spatial beam self-cleaning in bi-tapered conventional multimode fibers (MMFs) with different tapered lengths. Through the introduction of the bi-tapered structure in MMFs, the input beam with poor beam quality from a high-power fiber laser ...
Xiao-Jun Lin   +9 more
doaj   +1 more source

Optical Gas Sensor Fabrication Based on Porphyrin-Anchored Electrostatic Self-Assembly onto Tapered Optical Fibers [PDF]

open access: yes, 2012
Tapered optical fibers with nano-assembled coatings of thicknesses of order tens of nanometres were used for the detection of ammonia gas. The film coating was composed of alternate layers of tetrakis-(4-sulfophenyl) porphine (TSPP) and poly(allylamine ...
Lee, Seung-Woo   +5 more
core   +1 more source

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