Results 11 to 20 of about 3,187 (306)

Hydrogel-Core Microstructured Polymer Optical Fibers for Selective Fiber Enhanced Raman Spectroscopy

Sensors, 2021
A new approach of Fiber Enhanced Raman Spectroscopy (FERS) is described within this article based on the use of Hydrogel-Core microstructured Polymer Optical Fibers (HyC-mPOF).
Mikel Azkune, Igor Ayesta, Leire Ruiz-Rubio, Eneko Arrospide, Jose Luis Vilas-Vilela, Joseba Zubia   +5 more
doaj   +1 more source

Six-Core GeO₂-Doped Silica Microstructured Optical Fiber with Induced Chirality

Fibers, 2023
This work presents a fabricated silica few-mode microstructured optical fiber (MOF) with a special six GeO2-doped core geometry, an outer diameter of 125 µm (that corresponds to conventional commercially available telecommunication optical fibers), and ...
Anton V. Bourdine, Vladimir V. Demidov, Konstantin V. Dukelskii, Alexander V. Khokhlov, Egishe V. Ter-Nersesyants, Sergei V. Bureev, Alexandra S. Matrosova, Grigori A. Pchelkin, Artem A. Kuznetsov, Oleg G. Morozov, Ilnur I. Nureev, Airat Zh. Sakhabutdinov, Timur A. Agliullin, Michael V. Dashkov, Alexander S. Evtushenko, Elena S. Zaitseva, Alexander A. Vasilets, Azat R. Gizatulin, Ivan K. Meshkov, Yaseera Ismail, Francesco Petruccione, Ghanshyam Singh, Manish Tiwari, Juan Yin   +23 more
doaj   +1 more source

Investigations on the Bragg grating recording in all-silica, standard and microstructured optical fibers using 248 nm, 5 ps laser radiation [PDF]

Journal of the European Optical Society-Rapid Publications, 2009
The fabrication of Bragg reflectors in hydrogenated, all-silica, fluorine cladding depressed and microstructured optical fibers using 248 nm, 5 ps laser radiation, is investigated here.
Pissadakis S., Livitziis M., Tsibidis G. D.   +2 more
doaj   +1 more source

Confinement losses in microstructured optical fibers [PDF]

Optics Letters, 2001
We describe a multipole formulation that can be used for high-accuracy calculations of the full complex propagation constant of a microstructured optical fiber with a finite number of holes. We show how the imaginary part of the microstructure, which describes confinement losses not associated with absorption, varies with hole size, the number of rings
T P, White, R C, McPhedran, C M, de Sterke, L C, Botten, M J, Steel   +4 more
openaire   +2 more sources

Optical Properties of Microstructured Fibre Tuned by Filling with Magnetic Liquids

Advances in Electrical and Electronic Engineering, 2013
Alternative for adjust optical fiber light-guiding properties by bulk glass doping is provided by microstructured optical fibers, which allows access directly to the light guiding core via their microstructure.
Jan Vanda, Alessandro Candiani
doaj   +1 more source

Microstructured optical fiber devices

Optics Express, 2001
We present several applications of microstructured optical fibers and study their modal characteristics by using Bragg gratings inscribed into photosensitive core regions designed into the air-silica microstructure. The unique characteristics revealed in these studies enable a number of functionalities including tunability and enhanced nonlinearity ...
B, Eggleton, C, Kerbage, P, Westbrook, R, Windeler, A, Hale   +4 more
openaire   +2 more sources

Refractive Index Measurement of Liquids Based on Microstructured Optical Fibers

Photonics, 2014
This review is focused on microstructured optical fiber sensors developed in recent years for liquid RI sensing. The review is divided into three parts: the first section introduces a general view of the most relevant refractometric sensors that have ...
Susana Silva, Paulo Roriz, Orlando Frazão   +2 more
doaj   +1 more source

Highly sensitive salinity sensor based on Mach-Zehnder interferometer with double-C fiber

Fundamental Research, 2022
This paper proposes a highly sensitive, compact, and low-cost optical fiber salinity sensor based on the Mach-Zehnder interferometer. The sensor is constructed using a single mode fiber (SMF) - no-core fiber - double-C fiber (DCF) - NCF-SMF structure ...
Ya-nan Zhang, Like Li, Jincheng Zhao, Yong Zhao   +3 more
doaj   +1 more source

Antiguiding in microstructured optical fibers

Optics 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

Symmetry and degeneracy in microstructured optical fibers [PDF]

Optics Letters, 2001
The symmetry of an optical waveguide determines its modal degeneracies. A fiber with rotational symmetry of order higher than 2 has modes that either are nondegenerate and support the complete fiber symmetry or are twofold degenerate pairs of lower symmetry.
M J, Steel, T P, White, C, Martijn de Sterke, R C, McPhedran, L C, Botten   +4 more
openaire   +2 more sources