High Temperature Sensor Based on Tapered Few Modes All-Solid Photonic Bandgap Fiber
| Autor: | Mohd Hanapiah M. Yusoff, N. A. A. Zulkifli, M. I. Md Ali, Hasnida Saad, S. A. M. Toha, S.N. Sanusidin |
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| Rok vydání: | 2018 |
| Předmět: |
Multi-mode optical fiber
Optical fiber Materials science business.industry Eigenmode expansion Physics::Optics 02 engineering and technology 01 natural sciences Finite element method Thermal expansion law.invention 010309 optics Core (optical fiber) 020210 optoelectronics & photonics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Optoelectronics business Refractive index Photonic-crystal fiber |
| Zdroj: | 2018 IEEE 7th International Conference on Photonics (ICP). |
| Popis: | In this paper, the tapered photonic crystal fiber (PCF) temperature sensor was analyzed using eigenmode expansion method. The tapered PCF temperature sensor was designed based on singlemode-multimode-singlemode (SMS) structure. The multimode section consists of a large-core allsolid photonic bandgap fiber (AS-PBF) with silica as the background material and germanium-doped silica at the high index core region. The length is calculated with the formula of the linear thermal expansion coefficient and the refractive index changed is based on the temperature dependent Sellmier equation. The modes were computed using finite element method (FEM) and the propagation was analyzed using finite element-eigenmode expansion method (FE-EME). The numerical results indicate that the tapered PCF temperature sensor can function in a wide range of temperature that is from T=$20 ^{\circ}C$ to T=$930^{\circ}C$ and operating at wavelength of visible red-light sensor between 620nm – 660nm. The sensitivity is shown to be 4.7 pm$/^{\circ}$C. |
| Databáze: | OpenAIRE |
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