Results 21 to 30 of about 1,461 (256)

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

IEEE 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, T. Geernaert, H. Thienpont, F. Berghmans   +3 more
doaj   +1 more source

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

Sensors, 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, Gabriel Guendelman, Yoav Linzon   +2 more
doaj   +1 more source

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

Results 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, Lan Duc Vu, Hoa Phuoc Trung Nguyen, Yasutake Ohishi   +3 more
doaj   +1 more source

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

Sensors, 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, Hartmut Bartelt, Francis Berghmans, Martin Becker, Pawel Mergo, Waclaw Urbanczyk, Joris Degrieck, Eli Voet, Sophie Eve, Nicolas Lammens, Sanne Sulejmani, Thomas Geernaert, Geert Luyckx, Camille Sonnenfeld   +13 more
doaj   +1 more source

Photoinduced Electron Transfer Based Ion Sensing within an Optical Fiber

Sensors, 2011
We combine suspended-core microstructured optical fibers with the photoinduced electron transfer (PET) effect to demonstrate a new type of fluorescent optical fiber-dip sensing platform for small volume ion detection.
Tanya M. Monro, Heike Ebendorff-Heidepriem, Christopher J. Sumby, Andrew C. Richardson, Tze Cheung Foo, Florian V. Englich   +5 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

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

Fiber-optic microstructured sensors based on abrupt field patterns: theory, fabrication, and applications

Opto-Electronic Science
Fiber-optic sensing technology has the advantages of passivity, anti-electromagnetic interference, long-distance measurement, high sensitivity and high accuracy, small size, and adaptability to harsh environments such as high-vacuum, high-pressure, and ...
Yuxuan Yi, Wanlai Zhu, Zao Yi, Zigang Zhou, Shubo Cheng, Majid Niaz Akhtar, Sohail Ahmad   +6 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

Thermal Poling of Optical Fibers: A Numerical History

Micromachines, 2020
This review gives a perspective of the thermal poling technique throughout its chronological evolution, starting in the early 1990s when the first observation of the permanent creation of a second order non-linearity inside a bulk piece of glass was ...
Francesco De Lucia, Pier J. A. Sazio
doaj   +1 more source