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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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Farrell, Gerald
in Cooperation with on an Cooperation-Score of 37%
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Publications (6/6 displayed)
- 2018A comprehensive experimental study of whispering gallery modes in a cylindrical microresonator excited by a tilted fiber tapercitations
- 2017Strain-induced spectral tuning of the whispering gallery modes in a cylindrical micro-resonator formed by a polymer optical fibercitations
- 2012Chalcogenide microsphere fabricated from fiber tapers using contact with a high-temperature ceramic surfacecitations
- 2011Stress induced in optical fiber sensors embedded in composite materials by the lamination process
- 2011Lead silicate glass microsphere resonators with absorption-limited Qcitations
- 2010Macro-bend optical fiber linear displacement sensorcitations
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booksection
Macro-bend optical fiber linear displacement sensor
Abstract
Based on the macro-bend induced losses in an optical fiber a linear displacement sensor is developed. The oscillatory bend radius dependent loss is suppressed by coating the bent section with an absorption layer. The sensor is designed as an open-ended fiber probe for easy practical application, where the Fresnel reflection at the cleaved end is utilized. Mechanical modelling is given to optimize the fiber lead length to avoid buckling of the fiber. Resolutions of 30 μm and 0.1 μm, with coefficient of determination of 0.97 and 0.96, respectively over a total measurable displacement of 0 to 30 mm are achieved by utilizing a ratio-metric measurement of the bend loss. Finally a sensor with a smaller footprint is also demonstrated by utilizing a reduced clad fiber with a cladding diameter of 80 μm. <P />...