Results 21 to 30 of about 1,584 (156)

Two-dimensional mapping of surface scatterers on an optical fiber core using selective mode launching

APL Photonics, 2021
The tracking of small particles is an important but challenging task for biological applications such as disease diagnostics and medical research. Current methods are limited to the use of bulky instruments such as flow cytometers and microscopes.
Lu Peng, Linh Viet Nguyen, Jiawen Li, Nicolas Riesen, Dale Otten, David G. Lancaster, Heike Ebendorff-Heidepriem, Stephen C. Warren-Smith   +7 more
doaj   +1 more source

Interrogation Method with Temperature Compensation Using Ultra-Short Fiber Bragg Gratings in Silica and Polymer Optical Fibers as Edge Filters

Sensors, 2022
The use of simpler and less bulky equipment, with a reliable performance and at relative low cost is increasingly important when assembling sensing configurations for a wide variety of applications.
Luís Pereira, Rui Min, Getinet Woyessa, Ole Bang, Carlos Marques, Humberto Varum, Paulo Antunes   +6 more
doaj   +1 more source

Fiber Optic-Based Refractive Index Sensing at INESC Porto

Sensors, 2012
A review of refractive index measurement based on different types of optical fiber sensor configurations and techniques is presented. It addresses the main developments in the area, with particular focus on results obtained at INESC Porto, Portugal.
Orlando Frazão, José L. Santos, Gaspar Rego, José M. Baptista, Diana Viegas, Paulo Caldas, Luis Coelho, Paula Tafulo, Susana O. Silva, Carlos Gouveia, Pedro A. S. Jorge   +10 more
doaj   +1 more source

Twisted Silica Few-Mode Hollow GeO₂-Doped Ring-Core Microstructured Optical Fiber

Photonics, 2023
This work presents the first instance of a silica few-mode microstructured optical fiber (MOF) being successfully fabricated with a hollow GeO2-doped ring core and by strongly inducing twisting up to 790 revolutions per meter.
Anton V. Bourdine, Vladimir V. Demidov, Egishe V. Ter-Nersesyants, Grigori A. Pchelkin, Dmitriy N. Shurupov, Alexander V. Khokhlov, Alexandra S. Matrosova, Andrey I. Kashin, Sergei V. Bureev, Michael V. Dashkov, Alexander S. Evtushenko, Elena S. Zaitseva, Azat R. Gizatulin, Ivan K. Meshkov, Amogh A. Dyavangoudar, Ankur Saharia, Manish Tiwari, Alexander A. Vasilets, Vasiliy S. Elagin, Ghanshyam Singh, Konstantin V. Dukelskii   +20 more
doaj   +1 more source

Advances on Optical Fiber Sensors

Fibers, 2013
In this review paper some recent advances on optical fiber sensors are reported. In particular, fiber Bragg grating (FBG), long period gratings (LPGs), evanescent field and hollow core optical fiber sensors are mentioned. Examples of recent optical fiber
Luciano Mescia, Francesco Prudenzano
doaj   +1 more source

Recent Advances in High-Birefringence Fiber Loop Mirror Sensors

Sensors, 2007
Recent advances in devices and applications of high-birefringence fiber loopmirror sensors are addressed. In optical sensing, these devices may be used as strain andtemperature sensors, in a separate or in a simultaneous measurement.
José L. Santos, José M. T. Baptista, Orlando Frazão   +2 more
doaj   +1 more source

Compact supercontinuum source for the visible using gain-switched Ti:Sapphire laser as pump [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
We demonstrate the use of a miniature gain-switched Ti:Sapphire laser for efficient generation of visible supercontinuum light in a highly nonlinear microstructured optical fiber.
Räikkönen E., Kaivola M., Buchter S. C.   +2 more
doaj   +1 more source

Optimizing the Structure of Vector Bend and Strain Sensor on the Base of Three-Core Microstructured Fiber

Journal of Telecommunications and Information Technology, 2012
In the paper the optical sensor allowing measuring a direction, values and localization of bends and stresses in building structures is described. The sensitive element of the sensor is the microstructured fiber with three cores.
Igor A. Goncharenko, Marian Marciniak, Alexei I. Konojko, Vitaly N. Reabtsev   +3 more
doaj   +1 more source

Research of parameters of fusion splices of telecommunication multimode optical fibers and silica microstructured fiber lightguides with hexagonal configuration

Научно-технический вестник информационных технологий, механики и оптики
This work presents the results of experimental approbation of the ability to fuse telecommunication graded index multimode optical fibers of ISO/IEC Category OM2+/OM3 and silica microstructured optical fibers by using a commercially available field ...
A. V. Bourdine, V. G. Nesterov, M. A. Orlov, A. S. Evtushenko, S. S. Pashin, E. S. Zaitseva, A. A. Belyaev, D. N. Shurupov, V. V. Demidov, E. V. Ter-Nersesyants, K. V. Dukelskii, G. S. Polishchuk   +11 more
doaj   +1 more source

Wavelength dependent equilibrium mode distribution and steady-state distribution in double-clad W-type microstructured polymer optical fibers

Results in Physics, 2022
This paper investigates wavelength dependence of equilibrium mode distribution and steady-state distribution in W-type (double-clad) microstructured polymer optical fibers (mPOFs) with a solid core for parametrically varied refractive index and width of ...
Branko Drljača, Svetislav Savović, Milan S. Kovačević, Ana Simović, Ljubica Kuzmanović, Alexandar Djordjevich, Konstantinos Aidinis, Rui Min   +7 more
doaj   +1 more source