| Autor: |
Yan, Zhijun, Adebayo, Adedotun, Zhou, Kaiming, Zhang, Lin, Webb, David |
| Přispěvatelé: |
Bock, Wojtek J., Albert, Jacques, Bao, Xiaoyi |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Popis: |
We experimentally demonstrated a highly sensitive twist sensor system based on a 45° and an 81° tilted fibre grating (TFG). The 81°-TFG has a set of dual-peaks that are due to the birefringence induced by its extremely tilted structure. When the 81°-TFG subjected to twist, the coupling to the two peaks would interchange from each other, providing a mechanism to measure and monitor the twist. We have investigated the performance of the sensor system by three interrogation methods (spectral, power-measurement and voltage-measurement). The experimental results clearly show that the 81°-TFG and the 45°-TFG could be combined forming a full fibre twist sensor system capable of not just measuring the magnitude but also recognising the direction of the applied twist. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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