Thermal Regeneration in Etched-Core Fiber Bragg Grating
Thermal regeneration is observed in etched-core fiber Bragg gratings (FBGs) with a fiber diameter of 5.6 μm. Etched-core FBGs are prepared by chemical etching using a hydrofluoric acid solution. Annealing is applied for all gratings to induce thermal regeneration. Thermal regeneration of FBG is obse...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Published: |
Institute of Electrical and Electronics Engineers (IEEE)
2013
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/14393/ http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6493376 |
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| Summary: | Thermal regeneration is observed in etched-core fiber Bragg gratings (FBGs) with a fiber diameter of 5.6 μm. Etched-core FBGs are prepared by chemical etching using a hydrofluoric acid solution. Annealing is applied for all gratings to induce thermal regeneration. Thermal regeneration of FBG is observed at 680°C. The temperature sensitivity of regenerated etched-core FBGs is measured to be 13.9 pm/°C for a temperature range between 25°C and 700°C. With its high temperature resistance and large evanescent field interaction with its surrounding, thermally regenerated etched-core FBG has potential applications in high temperature sensing. |
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