Suspended-Core Microstructured Polymer Optical Fibers and Potential Applications in Sensing

Talataisong, Wanvisa; Ismaeel, Rand; Beresna, Martynas; Brambilla, Gilberto

doi:10.3390/s19163449

Cited by 23 publications

(7 citation statements)

References 96 publications

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“…The mPOF manufacturing is not a mature technology yet, and different technologies for fiber fabrication have been reported, thus leading to customized and specialty mPOF fiber structures and materials to achieve singlemode operation in POF fibers. This means that specific parameters for cleaving novel mPOFs must be studied to determine the optimal conditions to achieve high quality fiber end-faces for further mPOF use, mainly in sensing applications [ 28 ] including the measurement of physical parameters, e.g., pressure, strain [ 29 ], torsion, temperature [ 30 ], and the detection of biomedical parameters such as refractive index and microfluidic flow rate [ 31 ]. In some cases, the connections are made using a 3D translation platform together with matching gel or by focusing the light using lenses or an objective microscope [ 32 ].…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2021

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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.

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Section: Discussionmentioning

confidence: 99%

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

et al. 2021

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“…[15] Therefore,w ee nvisioned to join two arcshaped optical waveguides by micromanipulation. It is expected that, in the resultant organic directional coupler with four termini, the curved junction will facilitate the transfer of light from one waveguide to another,w hich is analogous to evanescent field coupling [16] and subsequent light transfer between two optical fibers in the tapered region. We selected ar epresentative crystal (crystal-1) with L % 206 mm (Figure 4a).…”

Section: Angewandte Chemiementioning

confidence: 99%

Mechanophotonics: Flexible Single‐Crystal Organic Waveguides and Circuits

et al. 2020

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We present the one-dimensional optical-waveguiding crystal dithieno[3,2-a:2',3'-c]phenazine with ah igh aspect ratio,high mechanical flexibility,and selective self-absorbance of the blue part of its fluorescence (FL). While macrocrystals exhibit elasticity,m icrocrystals deposited at ag lass surface behave more like plastic crystals due to significant surface adherence,m aking them suitable for constructing photonic circuits via micromechanical operation with an atomic-forcemicroscopyc antilever tip.T he flexible crystalline waveguides displayoptical-path-dependent FL signals at the output termini in both straight and bent configurations,m aking them appropriate for wavelength-division multiplexing technologies. Ar econfigurable 2 2-directional coupler fabricated via micromanipulation by combining two arc-shaped crystals splits the optical signal via evanescent coupling and delivers the signals at two output terminals with different splitting ratios. The presented mechanical micromanipulation technique could also be effectively extended to other flexible crystals.

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“…The sensing with the solid-core MOFs is realized based on the strong interaction of the evanescent field of the propagating light mode with the air channels surrounding the central core. Among the other types of solid-core fibers, suspended-core MOFs are the most promising structures for efficient biological sensor devices, due to the high power fraction of the evanescent-field [37,43].…”

Section: Microstructured Optical Fiber-based Optical Sensorsmentioning

confidence: 99%

Functionalized Microstructured Optical Fibers: Materials, Methods, Applications

et al. 2020

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Microstructured optical fiber-based sensors (MOF) have been widely developed finding numerous applications in various fields of photonics, biotechnology, and medicine. High sensitivity to the refractive index variation, arising from the strong interaction between a guided mode and an analyte in the test, makes MOF-based sensors ideal candidates for chemical and biochemical analysis of solutions with small volume and low concentration. Here, we review the modern techniques used for the modification of the fiber’s structure, which leads to an enhanced detection sensitivity, as well as the surface functionalization processes used for selective adsorption of target molecules. Novel functionalized MOF-based devices possessing these unique properties, emphasize the potential applications for fiber optics in the field of modern biophotonics, such as remote sensing, thermography, refractometric measurements of biological liquids, detection of cancer proteins, and concentration analysis. In this work, we discuss the approaches used for the functionalization of MOFs, with a focus on potential applications of the produced structures.

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Suspended-Core Microstructured Polymer Optical Fibers and Potential Applications in Sensing

Cited by 23 publications

References 96 publications

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

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

Mechanophotonics: Flexible Single‐Crystal Organic Waveguides and Circuits

Functionalized Microstructured Optical Fibers: Materials, Methods, Applications

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