Micro-structured fibers and their applications in fiber-optic sensors and random fiber lasers
| Autor: | Xiaoyi Bao, Yanping Xu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
PHOSFOS Optical fiber Plastic-clad silica fiber business.industry Physics::Optics General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention 010309 optics Optics Fiber optic sensor law 0103 physical sciences Fiber optic splitter Optoelectronics 0210 nano-technology Plastic optical fiber business Hard-clad silica optical fiber Photonic-crystal fiber |
| Zdroj: | Canadian Journal of Physics. 96:359-365 |
| ISSN: | 1208-6045 0008-4204 |
| DOI: | 10.1139/cjp-2017-0304 |
| Popis: | Micro-structured fibers are important devices that have drawn intensive attentions and proved to be powerful platforms for various applications over the past decades due to their remarkable merits and advantages, such as small footprint, immunity to electromagnetic interferences, light weight, high physical flexibility, and low cost. Modifications in optical fibers can be used as light-steering elements to excite and couple back different core and cladding modes and form various in-fiber structures, including in-line fiber interferometer, fiber micro-cantilever, fiber random gratings, and so on. These micro-structures, when applied as fiber-optic sensors in the presence of external disturbances, show high sensitivity in terms of the significant changes in the guided light features. Novel micro-structured bend-insensitive fiber-based in-line fiber interferometer and micro-cantilever have been proposed to realize both static and dynamic parameter measurements, including temperature, axial strain, surrounding refractive index, and vibration. We have also developed a novel fiber random grating along with a spectral correlation algorithm for simultaneous measurement of three static measurands. To move a step forward, random fiber lasers based on fiber random grating are achieved for either improving the laser performances or sensing applications of temperature, strain, and ultrasound measurements with high sensitivity. |
| Databáze: | OpenAIRE |
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