Technology of a photopolymer microtip as an optical fiber sensor’s transducer

Żuchowska, Monika; Marć, Paweł; Dudek, Michał; Pura-Pawlikowska, P.; Wonko, R.; Jaroszewicz, Leszek R.

doi:10.1117/12.2271037

Cited by 2 publications

(11 citation statements)

References 12 publications

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“…Microtips' manufacturing procedure consists of two steps. The first step is the application of a liquid monomer mixture as a drop at the end of a cleaved optical fiber [6,13,14] or immersion of the optical fiber into a cuvette with this mixture. In the second step, light propagated in the optical fiber core cures the photopolymer so it becomes a hardened 3D polymer microstructure.…”

Section: Technology Of Microtips On Multi-mode Optical Fibersmentioning

confidence: 99%

“…In previous papers, the results obtained by using separately coherent light sources [3,13] or UV LED [14] have been presented. In this paper, the influence on the microtip geometry of such source parameters as a full width at half maximum (FWHM) and a central wavelength are investigated.…”

Section: Light Sources' Parametersmentioning

confidence: 99%

“…In this paper were used: gradient-index MMF with a 62.5 µm core diameter and three step-index MMFs with 50 µm, 105 µm, and 200 µm cores diameters. Based on the previous studies, these MMFs were selected in terms of their reflective properties [13,14]. In Table 3, the main parameters of the used MMFs are presented.…”

Section: Selected Multi-mode Optical Fibersmentioning

confidence: 99%

“…Each of the micro-element was prepared at various optical power and exposure times to show the possibility of shaping this type of optical microstructure. on the previous studies, these MMFs were selected in terms of their reflective properties [13,14]. In Table 3, the main parameters of the used MMFs are presented.…”

Section: Selected Multi-mode Optical Fibersmentioning

confidence: 99%

“…Known from the literature, the designs have used optical fiber transducers based on Bragg gratings [9,10], long-period gratings [10,11], plasmonic effects in standard and microstructured optical fibers [10], or even micro-interferometers [10,12]. In the authors' studies regarding microtips on multi-mode fibers (MMFs), including polymer MMF (GIPOF-62) [6] and silica-based MMF (GIF625) [13],…”

Section: Introductionmentioning

confidence: 99%

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Technology of Polymer Microtips’ Manufacturing on the Ends of Multi-Mode Optical Fibers

et al. 2020

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The technology of polymer microtips’ manufacturing on the ends of selected multi-mode fibers has been reported. The study’s key element was an extended description of technology parameters’ influence on the shape of these 3D microstructures. Basic technology parameters such as spectral characteristics of the light source, monomer mixture type, optical power, and exposure time were taken under consideration. Depending on those parameters, different shapes, sizes, and surface structures of microtips were obtained. The spectral characteristics of the light and optical power delivered to a monomer drop were identified as the most important parameters for the formation of the desired 3D shape of the microtip. Presented experimental results are the base for further studies directed to the application of these micro-elements in the fields of optical measurements and sensors’ technology.

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Section: Technology Of Microtips On Multi-mode Optical Fibersmentioning

confidence: 99%

Section: Light Sources' Parametersmentioning

confidence: 99%

Section: Selected Multi-mode Optical Fibersmentioning

confidence: 99%

Section: Selected Multi-mode Optical Fibersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Technology of Polymer Microtips’ Manufacturing on the Ends of Multi-Mode Optical Fibers

et al. 2020

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Reflective Properties of a Polymer Micro-Transducer for an Optical Fiber Refractive Index Sensor

Marć

Żuchowska

Jaroszewicz

2020

Sensors

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A polymer microtip manufactured at the end of a multi-mode optical fiber by using the photopolymerization process offers good reflective properties, therefore, it is applicable as an optical fiber sensor micro-transducer. The reflective properties of this microelement depend on the monomer mixture used, optical fiber type, and light source initiating polymerization. Experimental results have shown that a proper selection of these parameters has allowed the design of a new class of sensing structure which is sensitive to the refractive index (RI) changes of a liquid medium surrounding the microtip. An optical backscatter reflectometer was applied to test a group of micro-transducers. They were manufactured from two monomer mixtures on three different types of multi-mode optical fibers. They were polymerized by means of three optical light sources. Selected micro-transducers with optimal geometries were immersed in reference liquids with a known RI within the range of 1.3–1.7. For a few sensors, the linear dependences of return loss and RI have been found. The highest sensitivity was of around 208 dB/RIU with dynamic 32 dB within the range of 1.35–1.48. Sensing characteristics have minima close to RI of a polymer microelement, therefore, changing its RI can give the possibility to tune sensing properties of this type of sensor.

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Technology of a photopolymer microtip as an optical fiber sensor’s transducer

Cited by 2 publications

References 12 publications

Technology of Polymer Microtips’ Manufacturing on the Ends of Multi-Mode Optical Fibers

Technology of Polymer Microtips’ Manufacturing on the Ends of Multi-Mode Optical Fibers

Reflective Properties of a Polymer Micro-Transducer for an Optical Fiber Refractive Index Sensor

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