Flexible porphyrin doped polymer optical fibers for rapid and remote detection of trace DNT vapor

The Analyst ◽  
2020 ◽  
Vol 145 (15) ◽  
pp. 5307-5313
Author(s):  
Huan Lin ◽  
Xin Cheng ◽  
Ming-Jie Yin ◽  
Zhouzhou Bao ◽  
Xunbin Wei ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Remote Detection ◽  
Polymer Optical Fiber ◽  
Highly Sensitive ◽  
Polymer Optical Fibers ◽  
Doped Polymer

A flexible porphyrin doped polymer optical fiber was developed for fast and highly sensitive monitoring of DNT vapors.

scholarly journals Vortex Polymer Optical Fiber with 64 Stable OAM States

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2776
Author(s):  
José A. Borda-Hernández ◽  
Claudia M. Serpa-Imbett ◽  
Hugo E. Hernandez Figueroa
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Communication Systems ◽  
Low Cost ◽  
Higher Order ◽  
Coupling Coefficients ◽  
Polymer Optical Fiber ◽  
Optical Polymer ◽  
Polymer Optical Fibers ◽  
Low Dispersion

This research introduces a numerical design of an air-core vortex polymer optical fiber in cyclic transparent optical polymer (CYTOP) that propagates 32 orbital angular momentum (OAM) modes, i.e., it may support up to 64 stable OAM-states considering left- and right-handed circular polarizations. This fiber seeks to be an alternative to increase the capacity of short-range optical communication systems multiplexed by modes, in agreement with the high demand of low-cost, insensitive-to-bending and easy-to-handle fibers similar to others optical fibers fabricated in polymers. This novel fiber possesses unique characteristics: a diameter of 50 µm that would allow a high mechanical compatibility with commercially available polymer optical fibers, a difference of effective index between neighbor OAM modes of around 10−4 over a bandwidth from 1 to 1.6 µm, propagation losses of approximately 15 × 10−3 dB/m for all OAM modes, and a very low dispersion for OAM higher order modes (±l = 16) of up to +2.5 ps/km-nm compared with OAM lower order modes at a telecom wavelength of 1.3 µm, in which the CYTOP exhibits a minimal attenuation. The spectra of mutual coupling coefficients between modes are computed considering small bends of up to 3 cm of radius and slight ellipticity in the ring of up to 5%. Results show lower-charge weights for higher order OAM modes.

scholarly journals E-Knitted Textile with Polymer Optical Fibers for Friction and Pressure Monitoring in Socks

Sensors ◽  
2019 ◽  
Vol 19 (13) ◽  
pp. 3011 ◽  
Author(s):  
Claire Guignier ◽  
Brigitte Camillieri ◽  
Michel Schmid ◽  
René M. Rossi ◽  
Marie-Ange Bueno
Keyword(s):  
Mechanical Properties ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Knitted Fabric ◽  
Bending Rigidity ◽  
Pressure Monitoring ◽  
Polymer Optical Fiber ◽  
Bending Radius ◽  
Polymer Optical Fibers ◽  
Knitted Structure

The objective of this paper is to study the ability of polymer optical fiber (POF) to be inserted in a knitted fabric and to measure both pressure and friction when walking. Firstly, POF, marketed and in development, have been compared in terms of the required mechanical properties for the insertion of the fiber directly into a knitted fabric on an industrial scale, i.e. elongation, bending rigidity, and minimum bending radius before plastic deformation. Secondly, the chosen optical fiber was inserted inside several types of knitted fabric and was shown to be sensitive to friction and compression. The knitted structure with the highest sensitivity has been chosen for sock prototype manufacturing. Finally, a feasibility study with an instrumented sock showed that it is possible to detect the different phases of walking in terms of compression and friction.

HIGH-POWER OPTICAL SOURCE USING DYE-DOPED POLYMER OPTICAL FIBER

1996 ◽  
Vol 05 (01) ◽  
pp. 73-88 ◽  
Author(s):  
T. YAMAMOTO ◽  
K. FUJII ◽  
A. TAGAYA ◽  
E. NIHEI ◽  
Y. KOIKE ◽  
...  
Keyword(s):  
Optical Fibers ◽  
High Power ◽  
Rhodamine 6G ◽  
Experimental Result ◽  
Polymer Optical Fiber ◽  
Optical Source ◽  
Strong Excitation ◽  
Basic Characteristics ◽  
Polymer Optical Fibers ◽  
Doped Polymer

Basic characteristics of organic-dye doped polymer optical fibers (DPOFs) are demonstrated. The devices contain laser dye, such as Rhodamine 6G (R6G) and Rhodamine B (RB) in the core region. Firstly, amplification characteristics of DPOF amplifiers (PO-FAs) excited by a pulse-operated, doubled Nd:YAG laser are demonstrated, e.g., a 250 mm-length of RB-POFA gives 1 kW (30 dB) of amplified signal at 591 nm. Next, an all solid state system of RB DPOF laser (POFL) is discussed by numerical simulation and the experimental result of high-power amplified spontaneous emission (ASE) by strong excitation of DPOF is shown.

scholarly journals Determination of the optimal extrusion temperature of the PMMA optical fibers

2019 ◽  
Vol 11 (1) ◽  
pp. 7
Author(s):  
Malwina Julita Niedźwiedź ◽  
Małgorzata Gil ◽  
Mateusz Gargol ◽  
Wiesław Marian Podkościelny ◽  
Paweł Mergo
Keyword(s):  
Optical Fiber ◽  
Methyl Methacrylate ◽  
Optical Fibers ◽  
Data Communication ◽  
Extrusion Temperature ◽  
Polymer Optical Fiber ◽  
Poly Methyl Methacrylate ◽  
Practical Applications ◽  
Polymer Optical Fibers

The aim of this work was to determine optimal extrusion temperature for polymer optical fibers. For preliminary studies poly(methyl methacrylate) (PMMA) granulate was used. Samples of commercially available PMMA were subjected to four different temperatures in which were kept in oven for three different period of time. To examine the changes in the chemical structure of the polymer, an ATR-FT-IR (Attenuation Total Reflection Fourier Transform Infrared Spectroscopy) was chosen. Full Text: PDF ReferencesK. Peters, "Polymer optical fiber sensors—a review", Smart Mater. Struct. 20, 013002 (2011) CrossRef O. Ziemann, J. Krauser, P.E. Zamzow, W. Daum, "POF Polymer Optical Fibers for Data Communication" (New York, Springer-Verlag Berlin Heidelberg 2002). CrossRef M.A. van Eijkelenborg, M.C.J. Large, A. Argyros, J. Zagari, S. Manos, N.A. Issa, I. Bassett, S. Fleming, R.C. McPhedran, C. Martijn de Sterke, N.A.P. Nicorovici, "Microstructured polymer optical fibre", Opt Express 9, 319 (2001). CrossRef O. Çetinkaya, G. Wojcik, P. Mergo, "Decreasing diameter fluctuation of polymer optical fiber with optimized drawing conditions", Mater Res Express 5, 1 (2018). CrossRef P. Mergo, M. Gil, K. Skorupski, J. Klimek, G. Wójcik, J. Pędzisz, J. Kopec, K. Poruraj, L. Czyzewska, A. Walewski, A. Gorgol, "Low loss poly(methyl methacrylate) useful in polymer optical fibres technology", Phot. Lett. Poland, 5, 170 (2013). CrossRef J. Grdadolnik, "ATR-FTIR Spectroscopy: Its advantages and limitations", Acta Chim Slov. 49, 631 (2002). DirectLink P. Borowski, S. Pasieczna-Patkowska, M. Barczak, K. Pilorz, "Theoretical Determination of the Infrared Spectra of Amorphous Polymers", J Phys Chem A 116, 7424 (2012). CrossRef G. Socrates, "Infrared and Raman Characteristic Group Frequencies Tables and Charts" Third Edition (Baffins Lane Chichester, John Wiley & Sons Ltd 2001). DirectLink W. Schnabel, Polymer Degradation Principles and Practical Applications (Berlin, Akademie-Verlag 1981). DirectLink

Ammonia Detection by Dye Immobilized Microstructured Optical Fiber

2011 ◽  
Vol 255-260 ◽  
pp. 2131-2135 ◽  
Author(s):  
Li Rong Peng ◽  
Xing Hua Yang ◽  
Li Bo Yuan ◽  
En Ming Zhao ◽  
Le Li ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Optical Fiber Sensor ◽  
Gaseous Ammonia ◽  
Polymer Optical Fiber ◽  
Microstructured Optical Fiber ◽  
Response Range ◽  
Ammonia Detection ◽  
Polymer Optical Fibers ◽  
Minor Reaction

An optical ammonia probe was fabricated based on Microstructured Polymer Optical Fiber (MPOFs) modified by eosin doped silica gel films.The structure of this probe was based on microstructured polymer optical fibers with microholes and these microholes could be used as the substrate of sensing materials and minor reaction pools. The sensing properties of the optical fiber sensor to gaseous ammonia were investigated at room temperature. The sensing probe showed different fluorescence intensity at 576 nm to different concentrations of trace ammonia in carrier gas of nitrogen. The response range was 20-350 ppm, with short response time within 600 ms.

scholarly journals Cleaving of PMMA Microstructured Polymer Optical Fibers with 3- and 4-Ring Hexagonal Cladding Structures

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1366
Author(s):  
Rubén Guijarro ◽  
Alberto Tapetado ◽  
David Sánchez Montero ◽  
Carmen Vázquez
Keyword(s):  
Optical Fiber ◽  
Surface Quality ◽  
Optical Fibers ◽  
Critical Condition ◽  
Room Temperature ◽  
Blade Surface ◽  
Polymer Optical Fiber ◽  
Razor Blade ◽  
Polymer Optical Fibers ◽  
Outer Fiber

The cleaving of a novel microstructured polymer optical fiber (mPOF) to obtain an acceptable connectorized fiber end-face is studied. The effect of the blade temperature and the speed of the cutting blade on the end-face is qualitatively assessed. Recently manufactured mPOFs with air-structured 3- and 4-ring hexagonal-like hole cladding structures with outer fiber diameters of around 250 μm are employed. Good quality end-faces can be obtained by cleaving mPOF fibers at room temperature for blade temperatures within the range 60–80 °C and at a low blade speed at 0.5 mm/s. The importance of the blade surface quality is also addressed, being a critical condition for obtaining satisfactory mPOF end-faces after cleaving. From our experiments, up to four fiber cuts with the same razor blade and blade surface can be carried out with acceptable and similar fiber end-face results.

scholarly journals Gas Pressure Sensor Based on BDK-Doped Polymer Optical Fiber

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 717 ◽  
Author(s):  
Xin Cheng ◽  
Yi Liu ◽  
Changyuan Yu
Keyword(s):  
Optical Fiber ◽  
Pressure Sensor ◽  
Chemical Structure ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Air Pressure ◽  
Response Behavior ◽  
Polymer Optical Fiber ◽  
The Stability ◽  
Doped Polymer

This paper presents a high sensitivity gas pressure sensor with benzyl-dimethylketal (BDK)-doped polymer optical fiber Bragg grating (POFBG), whose sensitivity is up to 8.12 pm/kPa and 12.12 pm/kPa in positive and negative pressure atmosphere, respectively. The high sensitivity can be explained by its porous chemical structure. The stability and response behavior under air pressure atmosphere has also been investigated. The new understanding of the air pressure response principle and sensitivity difference for the presented sensor can be a worthy reference.

scholarly journals Highly Sensitive Extrinsic X-Ray Polymer Optical Fiber Sensors Based on Fiber Tip Modification

2017 ◽  
Vol 17 (16) ◽  
pp. 5112-5117 ◽  
Author(s):  
Ana I. de Andres ◽  
Sinead O'Keeffe ◽  
Lingxia Chen ◽  
Oscar Esteban
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensors ◽  
Polymer Optical Fiber ◽  
Fiber Sensors ◽  
X Ray ◽  
Highly Sensitive
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