Results 221 to 230 of about 1,370 (252)
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Localized biosensing with Topas microstructured polymer optical fiber
Optics Letters, 2006We present what is believed to be the first microstructured polymer optical fiber (mPOF) fabricated from Topas cyclic olefin copolymer, which has attractive material and biochemical properties. This polymer allows for a novel type of fiber-optic biosensor, where localized sensor layers may be activated on the inner side of the air holes in a ...
Grigoriy, Emiliyanov +6 more
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Future directions for microstructured polymer optical fibers
SPIE Proceedings, 2004Microstructured Polymer Optical Fibers (MPOF) were first made in 2001, and subsequent development has aimed at exploiting the material and design opportunities they present. Most effort has been focused on developing approaches for high bandwidth MPOF, and investigating the properties of multimode microstructured fibers.
Maryanne C. Large +12 more
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Numerical aperture in microstructured polymer optical fibers
SPIE Proceedings, 2005Microstructured or 'air-clad' fibers, with air holes surrounding a large core, have demonstrated much wider light acceptance angles than conventional fibers. Recently, a new method employing leaky modes has been used to determine the numerical aperture in highly multimode air-clad microstructured fibers.
Nader A. Issa +3 more
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Design of photosensitive microstructured polymer optical fibers
Frontiers of Optoelectronics in China, 2009We propose a new hole-assisted polymer optical fiber design to eliminate the influence of dopant diffusion and to increase the ultra violet (UV) writing efficiency in fiber Bragg grating inscription. The optical waveguide is formed inside a solid core polymethyl methacrylate (PMMA) doped with photosensitive trans-4-stilbenemethanol, surrounded by a ...
Hwa-Yaw Tam +3 more
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Laser based microstructuring of polymer optical fibers for sensors optimization
SPIE Proceedings, 2015Microstructuring of Polymer Optical Fibers-POF through surface modification with UV excimer laser radiation has been performed and studied. The laser modified surface cavities on fibers act as material receptors of exact volume allowing highly controllable and repeatable structures.
Athanasekos L. +5 more
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Applications of microstructured polymer optical fibers
2010 Photonics Global Conference, 2010This paper considers several applications of microstructured polymer optical fibres (mPOF) which rely on the properties of the polymer. These include strain sensing using single-mode mPOF inscribed with long period gratings, the use chiral materials to make circularly birefringent fibres, combinations of polymers to study novel fibre designs and the ...
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Disordered microstructure polymer optical fiber for stabilized coherent random fiber laser
Optics Letters, 2013We have demonstrated the realization of a random polymer fiber laser (RPFL) based on laser dye Pyrromethene 597-doped one-dimensional disordered polymer optical fiber (POF). The stabilized coherent laser action for the disordered POF has been obtained by the weak optical multiple scattering of the polyhedral oligomeric silsesquioxanes nanoparticles in ...
Zhijia, Hu +6 more
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Novel method for manufacturing optical fiber: extrusion and drawing of microstructured polymer optical fibers from a 3D printer [PDF]
Optics Express, 2018 Microstructured polymer optical fibers (MPOFs) have long attracted great interest due to their wide range of applications in biological and chemical sensing.
Wanvisa Talataisong +2 more
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Development of large core microstructured polymer optical fiber
SPIE Proceedings, 2012In this paper we report the in-house synthesis of optical grade PMMA suitable for fiber development and fabrication of a large core micro-structured polymer optical fiber (mPOF). We have designed an mPOF with a core area of 580 μm2 and single mode performance at a wavelength of 650 nm. The photonic cladding is composed of 3 rings of air holes with a
Adam Filipkowski +11 more
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Microstructured polymer optical fiber sensors for optoacoustic endoscopy
SPIE Proceedings, 2017Intravascular photoacoustics (IVPA) can complement intravascular ultrasound (IVUS) morphological information adding specificity. A practical IVUS/IVPA catheter is mandatory to have a wideband ultrasonic detector with enough sensitivity despite the necessary miniaturization to be fitted in less than 1 mm to pass through thin vasculature.
D. Gallego, H. Lamela
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